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See detailEgg and meat production performances of two varieties of the local Ardennaise poultry breed: silver black and golden black
Moula, Nassim ULg; Michaux, Charles ULg; Philippe, François-Xavier ULg et al

in Animal Genetic Resources = Resources Génétiques Animales = Recursos Genéticos Animales (2013), 53(2), 57-67

The Ardennaise breed is emblematic of the Belgian poultry diversity. We compared two varieties of the breed, the golden black and the silver black. The comparison encompassed: (i) the morphology of adult ... [more ▼]

The Ardennaise breed is emblematic of the Belgian poultry diversity. We compared two varieties of the breed, the golden black and the silver black. The comparison encompassed: (i) the morphology of adult birds, (ii) the growth, carcass characteristics and meat quality of broilers 22 weeks old, (iii) the laying rate during 52 weeks and the egg quality. Significant differences were observed in the size of mature males and females: body weight, diameter and length of the tarsus, size of the comb and wattles. The two varieties did not differ concerning the carcass and meat quality traits. The golden black has a higher laying rate and a higher yolk / albumen ratio, but lays lighter eggs. It could be interesting to complete this study by molecular markers analysis to evaluate the degree of genetic diversity between the two varieties. [less ▲]

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See detailQuality Assessment of Marketed Eggs in Basse kabylie (Algeria)
Moula, Nassim ULg; Ait Kaki, Asma ULg; Leroy, Pascal ULg et al

in Revista Brasileira de Ciência Avícola (2013), 15(4), 395-399

Quality variations in retail eggs are widely reported. This study aims at assessing the quality of eggs according to the marketing channel in the department of Bejaia (Algeria). In spring and summer 2012 ... [more ▼]

Quality variations in retail eggs are widely reported. This study aims at assessing the quality of eggs according to the marketing channel in the department of Bejaia (Algeria). In spring and summer 2012, 3330 eggs were bought in 30 stores divided into 3 categories: 10 supermarkets (1146 eggs), 10 public markets (1048 eggs), and 10 shops (1136 eggs). Egg weights differed significantly between marketing channels with 58.9±0.14, 61.2±0.13 and 62.8±0.13 g for public markets, shops and supermarkets, respectively (p<0.001). Although shell thickness was similar for all marketing channels, the proportion of damaged eggs was higher in public markets (9.0%), intermediate in food shops (7.3%) and lower in supermarkets (5.7%; p<0.05). The yolk/albumen ratio was significantly higher for eggs from supermarkets (48.0%) compared with the other channels (around 47.4%; p<0.05). The freshness of the eggs, measured by the Haugh method, was lower in public markets (74.3 units), intermediate in shops (77.6 units) and higher in supermarkets (79.9 units; p<0.05). The price of eggs, expressed in Algerian Dinar (AD) per kg, was significantly lower in public markets (124 AD/kg) compared with the two other channels (around 131 AD/kg; p<0.05). It is possible to conclude that egg quality in Bass Kabylie differs significantly among marketing channels, with higher quality observed in supermarkets. The lower quality of eggs in public markets is associated with lower price. Eggs from shops present an intermediate quality. A one-year study would allow studying both the potential seasonal effect and compare intrinsic variability across marketing channels. [less ▲]

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See detailL’élevage caprin dans la région montagneuse d’Ath Waghlis dans la wilaya de Bejaia: typologie et caractérisation morpho-biométrique
Moula, Nassim ULg; Ait Kaki, Asma ULg; Touazi, Leghel et al

Poster (2013, November 30)

Le cheptel caprin algérien est estimé à 3,8 millions de têtes dont 2,2 millions de femelles adultes. Comptant 400000 têtes, la race caprine kabyle représente un dixième du cheptel national. Afin de ... [more ▼]

Le cheptel caprin algérien est estimé à 3,8 millions de têtes dont 2,2 millions de femelles adultes. Comptant 400000 têtes, la race caprine kabyle représente un dixième du cheptel national. Afin de caractériser cette race et son élevage dans la région d’Ath Waghlis, une enquête a été menée auprès de 69 éleveurs (dont 22 femmes) de chèvres répartis sur les communes d’Akfadou, Chemini, Souk Oufella et Tibane. Les questionnaires portaient sur le profil socio-économique du ménage et ses activités agricoles, ainsi que les données techniques se rapportant à la production de chèvres. Il a également été procédé à la caractérisation morpho-biométrique des chèvres (18 mensurations corporelles, 3 variables qualitatives). L’analyse des structures d’élevage par classification hiérarchique ascendante (CHA) a permis de retenir quatre groupes d’élevages conservant 55,7% de la variabilité totale. Les variables considérées étaient le nombre d’animaux par espèce (chèvre, bovin, ovin, lapin, poule, dinde, ruches) et le nombre d’arbres (oliviers et figuiers) détenus. Le nombre moyen de chèvres pour chaque groupe est de 7,2±2,8, 11,1±3,5, 22,3±1,4 et 3,4±1,0. Le groupe 3, démontrant les plus grands effectifs caprins, est composé de personnes âgées en moyenne de 67 ans et ne pratiquant pas l’arboriculture. Ils possèdent également les plus importants effectifs d’ovins (48,67), de lapins (50,83), de poules (48,33) et de dindes (42). Le groupe 4, qui a les effectifs caprins les plus faibles, représente le groupe des jeunes éleveurs (moyenne ~39 ans), orientés vers l’élevage bovin (~52 têtes) et la production d’oliviers (~207 oliviers) et de figuiers (~47 figuiers). Les 18 variables morpho-biométriques étaient significativement plus élevées chez les mâles que chez les femelles (p<0,05). La chèvre kabyle est de petite taille (mâle : 68,23 cm vs femelle : 65,41 cm) et à poil long (mâle : 12 cm vs femelle 9 cm). Ses oreilles sont tombantes, le profil convexe à cassure nasale peu accentuée et sa robe va du brun foncé au noir. La riche diversité génétique des caprins locaux à Ath Waghlis souffre du manque de coordination des efforts de sélection des éleveurs, notamment du fait de l’absence de standard de la race et par l’introduction de races exotiques. Cette richesse devrait représenter un vivier utile où puiser les gènes d’intérêt pour la valorisation de la production locale, basée sur un engagement fort des éleveurs dans la production d’individus correspondant à un idéal collectivement déterminé. [less ▲]

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See detailLes ressources génétiques ovines en Algérie
Moula, Nassim ULg; Tennah, Safia ULg; Philippe, François-Xavier ULg et al

Poster (2013, November 30)

Avec un cheptel avoisinant les 19 millions de têtes, l'élevage ovin occupe une place importante en Algérie. Outre sa contribution de plus de 50 % dans la production nationale de viandes rouges et de 10 à ... [more ▼]

Avec un cheptel avoisinant les 19 millions de têtes, l'élevage ovin occupe une place importante en Algérie. Outre sa contribution de plus de 50 % dans la production nationale de viandes rouges et de 10 à 15% dans le produit intérieur brut agricole, l’élevage ovin joue un rôle socioculturel important. Il se pratique dans toutes les zones climatiques, depuis la côte méditerranéenne jusqu'aux oasis du grand Sahara. Cette diversité pédoclimatique du plus grand pays africain offre à l’Algérie une extraordinaire diversité de races ovines, avec huit races caractérisées par une rusticité remarquable, adaptées à leurs milieux respectifs. Avec 63% du cheptel ovin total, la race Ouled Djellal, aussi appelée la race Blanche, est la plus importante race ovine algérienne. Elle est exploitée principalement pour la production de viande. La race Berbère représentant un quart du cheptel ovin national, est considérée comme la plus ancienne race algérienne. Elle est menacée par les croisements non-contrôlés avec d’autres races pour l’amélioration de son potentiel productif. La troisième race ovine très importante est la Rmbi avec 11,1% du cheptel national, considérée comme la plus lourde race ovine en Algérie avec des poids avoisinants les 90 kg chez le bélier et 60kg chez la brebis. Les races Hamra, Barbarine, D'man, Sidahou et Tazegzawt représentent ensemble moins de 1% du cheptel ovin algérien. Le déclin de ces populations illustre l’érosion dramatique que subit cette richesse exceptionnelle, appelant à la mise en place d’un plan national de gestion et de conservation des ressources génétiques. [less ▲]

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See detailPerformances de production de la population de poules locales de la Wilaya de Bejaia
Ait Kaki, Asma ULg; Moula, Nassim ULg; Antoine-Moussiaux, Nicolas ULg et al

Poster (2013, November 30)

Cette étude a pour objectif d’évaluer le potentiel productif de la population de poules locales de la Wilaya de Bejaia, en caractérisant d’une part les performances de croissance, et d’autre part les ... [more ▼]

Cette étude a pour objectif d’évaluer le potentiel productif de la population de poules locales de la Wilaya de Bejaia, en caractérisant d’une part les performances de croissance, et d’autre part les performances de ponte. Le suivi de la croissance des poulets a été effectué sur 204 poussins durant 17 semaines d’élevage (de mars à juin 2011). A 12 semaines d’âge, le taux de mortalité était de 9,31 % et l’indice de consommation était de 4,03. La modélisation de la courbe de croissance au moyen des équations de Gompertz a permis d’obtenir les relations suivantes : pour les mâles : Y(g)=2409e^((-3,68)〖 e〗^((-0,0260 t) ) ) pour les femelles : Y(g)=1835e^((-3,71)〖 e〗^((-0,0294 t) ) ) avec y, le poids corporel en grammes et t, l’âge des animaux en jours. Les performances de ponte ont été étudiées chez 38 poules durant 52 semaines (d’août 2011 à août 2012). En moyenne, la ponte débute à l’âge de 166 jours à un poids corporel de 1334g. La poule pond en moyenne 173 œufs par an d’un poids moyen variant avec l’âge de la poule, de 44 à 53g. Au vu de ces résultats, il apparaît que les poules locales de Bejaia constituent un réservoir génétique prometteur tant pour leurs performances de croissance que de ponte. Les données obtenues dans cette étude permettent d'envisager un usage des poules locales dans le cadre d'une production de qualité différenciée, en élevage pur ou en croisement. La selection de ce réservoir génétique permettra de produire une véritable race sur base de la population locale, ayant fixés les caractères désirés et reconnus par les éleveurs comme étant propres à la poule locale. [less ▲]

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See detailDiversité des races de poules locales dans trois régions du monde: Bejaia (Algérie), le Nord du Vietnam et le Bas-Congo (République Démocratique de Congo)
Moula, Nassim ULg; Antoine-Moussiaux, Nicolas ULg; Philippe, François-Xavier ULg et al

Conference (2013, November 30)

La gestion des ressources génétiques animales est capitale pour le développement de filières de production durables. En production avicole, une érosion graduelle et régulière des ressources génétiques est ... [more ▼]

La gestion des ressources génétiques animales est capitale pour le développement de filières de production durables. En production avicole, une érosion graduelle et régulière des ressources génétiques est observée à l'échelle mondiale. Parmi les causes de cette érosion, on retrouve principalement un abandon progressif, volontaire ou contraint, de ces races par les éleveurs. D'autres facteurs aggravant sont les épidémies, les catastrophes naturelles, les conflits et la dégradation de l’habitat de ces animaux. Néanmoins, les races de poules traditionnelles contribuent significativement à la production de viande et d’œufs. Les races indigènes représentent plus de 80 % de la population de volaille mondiale. Cependant, la majorité de ces races n’ont pas été décrites et sont mal connues. La gestion efficace des ressources génétiques animales en général et aviaires en particulier nécessite une identification précise des races concernées, la connaissance des effectifs (taille des populations) et leur distribution géographique, permettant la caractérisation de leur habitat. L’objectif de ce travail est par conséquent de caractériser les races de poules locales dans trois régions du monde : Bejaia (Algérie), le Nord du Vietnam et le Bas-Congo (République Démocratique de Congo) par une description phénotypique, une évaluation des performances zootechniques et une étude des différentes pratiques d’élevage. Une grande diversité phénotypique a été révélée dans chaque région d'étude. Les objectifs d'élevage sont multiples (alimentaire, financier et socioculturel) et variables d’un pays à un autre. Les femmes et les enfants jouent un rôle important dans l'aviculture familiale, quoique variable entre les régions d'étude. Ainsi, les solutions visant à la promotion des races de poules locales doivent être adaptées à la spécificité de chaque contexte. [less ▲]

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See detailEnvironment factors affecting racing performances of Thoroughbred horses in Algeria
Tennah, Safia ULg; Kafidi, Nacereddine; Antoine-Moussiaux, Nicolas ULg et al

Poster (2013, October 11)

The results of the flat races organized in Algeria from 1995 to 2007 by the Algerian Horse Racing Society were used to estimate non-genetic parameters of racing performances of Thoroughbred horses ... [more ▼]

The results of the flat races organized in Algeria from 1995 to 2007 by the Algerian Horse Racing Society were used to estimate non-genetic parameters of racing performances of Thoroughbred horses. Performances were assessed through two earnings traits (the logarithm of annual virtual earnings: LAEV and the logarithm of average annual virtual earnings per start: LAEV/S) and a normalized ranking (PERF). The phenotypic correlations between these traits were calculated, in order to deduce what is common and what is specific to each measure. The environment factors that were investigated are age (3 to 8 years and older), sex (male or female), year of race (1995 to 2007) and the interactions between these factors. The General Linear Model (GLM) procedure from SAS software was used to identify and quantify the non-genetic factors affecting racing performances. The results showed significantly high positive correlations (p<0.001) between the three traits, hence considered as accounting for similar aptitudes. The effects of age (with a plateau between 4 and 5 years) and year (with an increasing trend for more recent years) turned out to be significant (p<0.001) for the three traits, the sex effect was only significant for the PERF trait (with better performances for males than females) and an interaction between the age and year of the performance was the only significant interaction (p<0.05) for the LAEV trait. The significant effects of these non-genetic factors indicate the need to adjust the earnings and ranks in the context of a program for genetic improvement of Thoroughbred horses in Algeria. [less ▲]

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See detailPedigree analysis in the Arabian horse in Algeria: estimation of inbreeding coefficient
Tennah, Safia ULg; Kafidi, Nacereddine; Antoine-Moussiaux, Nicolas ULg et al

Poster (2013, October 11)

The studbook of the Arabian horse used in this study is recognized by international authorities such as the WAHO (World Arabian Horse Organization). The pedigree file of the horses includes 1812 animals ... [more ▼]

The studbook of the Arabian horse used in this study is recognized by international authorities such as the WAHO (World Arabian Horse Organization). The pedigree file of the horses includes 1812 animals from 166 stallions (with an average of 10.11 ± 17.33 offspring) and 392 mares (with an average of 4.30 ± 3.76 offspring). The maximal pedigree depth was 18 generations. Inbreeding coefficients of horses present in our data were estimated using the software "Pedigree Viewer" and MTDFREML software on the basis of the provided pedigree. The estimation of the inbreeding coefficient for the 1812 horses showed that 1177 animals from all those present in the pedigree were consanguineous, with an inbreeding coefficients varying from 0,00002 to 0,265, with an overall mean of 0,0275 ± 0,001. The average value of the inbreeding coefficient in the population of Arabian horses in Algeria is thus relatively high. It is to be noticed that this average coefficient of inbreeding is less than the threshold established as problematic in the inbreeding literature (6%); however, 13.5% of the total population shows inbreeding coefficients above this threshold. It is therefore important to educate owners-breeders to the problems that consanguinity can generate, and to avoid as much as possible practices that increase inbreeding, such as a too intensive use of a major ancestor, the use of a too small number of breeding animals and the use of crosses between related individuals. All these measures are necessary to prevent rapid inbreeding increase, which would result in a significant loss of genetic diversity, with a medium-term potentially negative effect on racing performances and reproduction. [less ▲]

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See detailGenetic parameters of racing performance traits of Arabian horses in Algeria
Tennah, Safia ULg; Kafidi, Nacereddine; Antoine-Moussiaux, Nicolas ULg et al

Poster (2013, October 11)

The data used in the present study were recorded at the Algerian Horse Racing Society for 36492 racing performance of 913 Arabian horses from 1995 to 2007. The aim of the study was to identify the genetic ... [more ▼]

The data used in the present study were recorded at the Algerian Horse Racing Society for 36492 racing performance of 913 Arabian horses from 1995 to 2007. The aim of the study was to identify the genetic parameters underlying three traits: two earnings traits, namely the logarithm of average annual virtual earnings (LAEV) and the logarithm of average annual virtual earnings per start (LAEV/S), and a ranking trait, the normalized ranking (PERF). To identify the fixed effects to be included in the genetic mixed model, a preliminary analysis was conducted using the General Linear Models (GLM) procedure from SAS software. The effects of age, sex, year and the interaction between year of the race and age and between sex and age were included in the model for the three traits. Afterwards, two random effects, a direct genetic effect of the animal and a permanent environmental effect were included in the mixed model. The variance components and genetic parameters were estimated using the restricted maximum likelihood (REML) procedure with the MTDFREML program. The analyses with this repeatable animal model led to the following estimation of the genetic parameters: for LAEV, heritability was 0.225 (±0.041), while estimate of repeatability was 0.330 (±0.040). For LAEV/S, heritability was 0.164 (±0.027), while estimate of repeatability was 0.215 (±0.022). The heritability for the normalized ranking was higher, 0.369 (±0.054), indicating that this trait might provide faster progress for breeding programs of Arabian horses in Algeria. The repeatability estimate for the normalized ranking was 0.587 (±0.045). The genetic correlation between LAEV and LAEV/S was 0.99, revealing a almost complete genetic dependence between these two traits, 0.69 between PERF and LAEV and 0.79 between PERF and LAEV/S. [less ▲]

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See detailEvaluation morphométrique des chevaux pur-sang Arabe en Algérie: mensurations corporelles et proposition d’équations barymétriques
Tennah, Safia ULg; Kafidi, N; Antoine-Moussiaux, Nicolas ULg et al

Poster (2013, October 11)

Cette étude vise à la caractérisation morphobiométrique des chevaux de course pur-sang arabe et à l’estimation d’équations barymétriques adaptées à cette race. La caractérisation a concerné 98 chevaux ... [more ▼]

Cette étude vise à la caractérisation morphobiométrique des chevaux de course pur-sang arabe et à l’estimation d’équations barymétriques adaptées à cette race. La caractérisation a concerné 98 chevaux, dont 44 femelles et 54 mâles, tous âgés de trois ans et plus, auprès de 77 propriétaires-éleveurs dans 3 hippodromes d’Algérie (Zemmouri, Tiaret et Caroubier). Dix-neuf mensurations étaient relevées ainsi que le poids vif (PV). Le poids moyen est de 456,2 +/- 43,0 kg, variant de 335 kg à 545 kg. La sélection des variables à inclure dans les équations barymétriques a été réalisée à l’aide de la procédure stepwise du SAS. Quatre mensurations parmi les 19 réalisées ont été retenues pour la proposition d’équations d’estimation du poids vif des chevaux : le périmètre thoracique (PT), la hauteur à la croupe (HC), la longueur de l’encolure (LE) et le tour de l’encolure (TE). Ainsi, les équations proposées pour les mâles et pour les femelles sont respectivement de : PV= 7,024*PT - 787,119 (R²=0,99); PV=6,207*PT + 0,633*HC + 0,668*TE - 0,878*LE - 746,370 (R²=0,96). Les résultats de cette étude devraient permettre aux propriétaires-éleveurs et entraineurs de suivre aisément le poids de leurs chevaux. Ce suivi est nécessaire pour adapter l’activité et l’alimentation des chevaux et favoriser leur performance en course. [less ▲]

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See detailGrowth performance and meat quality of stress negative Piétrain pigs in the tropics: the case of Vietnam
Ha Xuan, Bo; Do Duc, Luc ULg; Moula, Nassim ULg et al

Poster (2013, October 11)

This study was carried out at the animal farm of Hanoi University of Agriculture, Vietnam to evaluate the growth performance and meat quality of stress negative Piétrain pigs. The study concerns the body ... [more ▼]

This study was carried out at the animal farm of Hanoi University of Agriculture, Vietnam to evaluate the growth performance and meat quality of stress negative Piétrain pigs. The study concerns the body weight (BW) of 116 pigs at 7.5 months of age and the ultrasound measurements on 83 live animals in order to determine backfat thickness, longissimus muscle depth and lean meat percentage (LM). Meat color (C.I.E L*, a* and b*), peak shear force (SF), pH at 24h (pH24) and at 45 minutes (pH45) post mortem were measured on 31 meat samples. Meat chemical composition (dry matter, protein, lipids and ash) was determined on 23 meat samples. All the data were analyzed according to a linear fixed model including gender effect (female and intact males) and Halothane genotype (CC and CT). The interaction between gender and genotype was not observed and therefore it was ignored from the final model. The results show that BW and LM were not significantly different between genotypes (P>0.21) while females were heavier than males (101.11 vs. 93.85 kg, P=0.0011). LM of female and male were respectively 63.27 and 63.56%. Gender and genotype didn’t affect meat quality and chemical composition (P>0.05) except pH24 (P=0.0011), a* (P<0.0001) and lipids (P=0.0012) for gender effect. The pH45 (6.50 and 6.45 for females and males) and pH24 (5.34 and 5.49 for females and males) were in the range corresponding to a normal meat. The obtained results show that stress negative Piétrain pigs have high lean meat percentage and satisfactory meat quality under tropical climatic conditions in Vietnam. [less ▲]

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See detailCaractérisation de la race ovine Tazegzawth en Algerie: description morpho-biométrique et détermination d’une formule barymétrique
Moula, Nassim ULg; Philippe, François-Xavier ULg; Do Duc, Luc ULg et al

Poster (2013, October 11)

Le mouton Azegzaw est de robe blanche avec des taches noires à reflets bleuâtres sur le chanfrein, le pourtour des yeux et le lobe des oreilles. Non répertoriée par le standard des races ovines ... [more ▼]

Le mouton Azegzaw est de robe blanche avec des taches noires à reflets bleuâtres sur le chanfrein, le pourtour des yeux et le lobe des oreilles. Non répertoriée par le standard des races ovines algériennes, cette race présente pourtant des qualités intéressantes d'adaptation aux régions montagneuses de Kabylie, ce qui justifie la mise en œuvre d’un programme de conservation de ce patrimoine génétique original. L’objectif de cette étude, est (1) de caractériser la morpho-biométrie de moutons de race Tazegzawth et (2) de déterminer des équations barymétriques destinées à l’estimation du poids vif (PV) au départ des mensurations corporelles (périmètre thoracique: PT ; longueur du corps: LDC ; hauteur au garrot : HG ; hauteur à la croupe : HC). Au total, 89 sujets adultes (12 mâles, 77 femelles) sont concernés par cette étude. Les mensurations corporelles moyennes observées sont : - PV: 41,53±0,53 kg (mâle: 46,71kg et femelle: 40,72kg) ; - PT: 73,52±0,45 cm (mâle: 78,37cm et femelle: 72,77cm) ; - LDC: 89,10±0,44 cm (mâle: 93,82cm et femelle: 88,37cm) ; - HG: 71,40±0,43 cm (mâle: 76,06cm et femelle: 70,68cm); - HC: 70,14±0,42 (mâle: 74,80cm cm et femelle: 69,42). Les formules retenues pour l’estimation du PV sont: - Tous sexes confondus : PV=-0,025 HG2 + 4,78HG-169,88 (R2=0,87) - Femelles : PV = -0,038HG2 +6,58HG-232,39 (R2=0,84) - Mâles : PV = -0,16LDC2+0,21 HC2+284,92 (R2=0,99) En dépit de l’échantillon réduit dans l’étude, celui-ci a révélé des caractéristiques relativement homogènes. La détermination d’une formule barymétrique pourra venir en soutien d’une sélection incluant un objectif de croissance. [less ▲]

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See detailEvaluation of some production parameters in Kabyle local rabbit population
Moula, Nassim ULg; Michaux, Charles ULg; Do Duc, Luc ULg et al

Poster (2013, October 11)

In Algeria, the rabbit production is mainly based on local population to ensure a cheap supply of urban markets proteins. This sector may represent an important source of protein which is in large deficit ... [more ▼]

In Algeria, the rabbit production is mainly based on local population to ensure a cheap supply of urban markets proteins. This sector may represent an important source of protein which is in large deficit in the country. The rabbit production can be justified by its advantages such as short life cycle and high prolificacy. The objective of the present study is to evaluate production performances of Kabyle local rabbit population. Litter size, growth rate, body slaughter weight, feed conversion ratio and mortality rate are considered. The experiment was carried out on 30 animals (6 males and 24 females) for reproduction in the Ath Waghlis region (north-east Algeria). Rabbits have been raised in pens with 1 male and 4 females per pen. The commercial feed was supplied ad libitum to animals. Results reported shown that total number of rabbits born, number born alive, number to weaned, slaughter weight at 84 days of age, feed conversion ratio (from weaning to slaughter) and survival rate (from birth to slaughter) were 7.1, 6.1, 5.3 rabbits, 1.90kg, 3.16 and 73% respectively. The performances of the Kabyle breed could be improved by purebred selection as well as by crossing with exotic breeds. [less ▲]

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See detailLe syndrome des myoclonies peribuccales avec absences: a propos de 2 cas.
Bourcy, E.; Leroy, Pascal ULg; DUBRU, Jean-Marie ULg

in Revue medicale de Liege (2013), 68(10), 537-41

Perioral myoclonia with absences (POMA) was first described in 1994 by CP Panayotopoulos who identified 6 cases that did not fit with the classical syndrome of absence epilepsy in children and whose ... [more ▼]

Perioral myoclonia with absences (POMA) was first described in 1994 by CP Panayotopoulos who identified 6 cases that did not fit with the classical syndrome of absence epilepsy in children and whose predominant symptom during the absence seizure was the occurrence of myoclonia of perioral muscles. The POMA belongs to the group of generalized idiopathic epilepsies. It begins in childhood and there is a female predominance. It may be accompanied by tonic-clonic generalized seizures as well as absence status epilepticus. It has the EEG characteristics of typical absence seizures and therefore remains currently considered as such. The clinical manifestations of POMA are often misdiagnosed as focal motor seizures. This syndrome can be pharmacoresistant and is not likely to regress spontaneously. We present two clinical observations of perioral myoclonia with absences. The first case illustrates the typical electro-clinical features of this syndrome while the second illustrates its pharmacoresistance. [less ▲]

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See detailEstimation of genetic parameters of racing traits of Arabian horses in Algeria
Tennah, Safia ULg; Kafidi, Nacereddine; Antoine-Moussiaux, Nicolas ULg et al

Poster (2013, August)

The results of the flat races organized in Algeria from 1995 to 2007 by the Algerian Horse Racing Society, were used to estimate genetic parameters of racing performances of Arabian horses. The data ... [more ▼]

The results of the flat races organized in Algeria from 1995 to 2007 by the Algerian Horse Racing Society, were used to estimate genetic parameters of racing performances of Arabian horses. The data consist of 36 492 race records, obtained from 913 horses. The pedigree file of the horses includes 1812 animals from 166 stallions and 392 mares. The analysis was performed on two traits: the logarithm of average annual virtual earnings per start (LAEV/S) and a normalized ranking (PERF). To identify the fixed effects to be included in the genetic model, a preliminary analysis was conducted using the General Linear Models (GLM) procedure from SAS software. The effects of age (3 to 8 years and older), sex (male or female), year (1995 to 2007) and the interaction between year of the race and age and between sex and age were included in the model for both traits. In addition, two random effects, a direct genetic effect of the animal and a permanent environmental effect were included in the mixed model. The variance components and genetic parameters were estimated by the restricted maximum likelihood (REML), procedure using the MTDFREML program. The analysis, using a repeatable animal model, led to the following estimation of genetic parameters: for LAEV/S, heritability was 0.23 (±0.04), while estimate of repeatability was 0.34 (±0.04). The heritability for the normalized ranking was higher, 0.37 (±0.05), indicating that this trait might be more appropriate for breeding programs of Arabian horses in Algeria. The repeatability estimate for the normalized ranking was 0.59 (±0.04) and the genetic correlation between this trait and LAEV/S was 0.79. [less ▲]

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See detailEgg Production Performance of the Local Kabyle Hen and its Crossbreeds with ISA-Brown Strain in Semi-Intensive Conditions
Moula, Nassim ULg; Mamadou Tandiang, Diaw; Salhi, Abdellah et al

in International Journal of Poultry Sciences (2013), 12(3), 148-152

A cross between the ISA-Brown industrial strain and an Algerian local (Kabyle) breed was compared with the Algerian local (Kabyle) hen. The comparison during the egg production period was done in ... [more ▼]

A cross between the ISA-Brown industrial strain and an Algerian local (Kabyle) breed was compared with the Algerian local (Kabyle) hen. The comparison during the egg production period was done in individual cages, in a ventilated henhouse without any particular isolation. The same commercial diet has been provided over three time periods (35 to 36 weeks, 50 to 51 weeks and 65 to 66 weeks of age). Egg number and body weight at first egg was significantly lower in the Kabyle local breed. Mortality was almost equal during the breeding period and the egg production periods for the two genotypes. The Kabyle hen eggs, in spite of a weight which was lower (43.70 to 53.37 g according to the age), gave yolk to albumen ratio similar to the ISAKAB cross (0.52 to 0.58 according to age). Finally, the ISAKAB cross was better in terms of egg production and egg quality than the local hen, in test conditions. [less ▲]

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See detailGrowth performance and sperm quality of stress negative Piétrain boars and their hybrids with Duroc
Do Duc, Luc ULg; Ha Xuan, Bo; Farnir, Frédéric ULg et al

in Journal of Science and Development (2013), 11(2),

This study was conducted to evaluate the effects of genetic background and season on growth performance and semen quality of boars. Five genetic groups were evaluated, including stress-negative Piétrain ... [more ▼]

This study was conducted to evaluate the effects of genetic background and season on growth performance and semen quality of boars. Five genetic groups were evaluated, including stress-negative Piétrain boars with CC (PiCC) or CT (PiCT) halothane genotypes, and Piétrain x Duroc hybrid boars with various compositions (25% (PiDu25), 50% (PiDu50) or 75% (PiDu75) of Piétrain origin). The results showed that genetic group has a significant effect on growth performance and semen quality. The hybrid boars PiDu25, PiDu50 and PiDu75 had better growth rate, but lower lean <br />meat in comparison with pure stress-negative Piétrain, except PiDu75 boars. PiDu25, PiDu50 and PiCC boars demonstrated high semen quality. A season effect was observed on most of semen quality traits of pure stress-negative Piétrain as well as hybrid boars with different genetic constitution. Sperm concentration was lower in Summer and Autumn, higher in Winter and Spring. The Piétrain x Duroc hybrid boars, especially PiDu75 seem to be promising as terminal boars. [less ▲]

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