References of "Hornick, Jean-Luc"
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See detailCharacterization of fatty acids camel meat in Algeria
Sahraoui, Naima; Dotreppe, Olivier; Errahmani, M. B. et al

in Cahiers de Nutrition et de Diététique (2014), 49(15), 231-234

The fatty acids of camel meat were characterized by 54.6% of saturated fatty acids (SFA), 35.0% of mono-unsaturated fatty acids (MFA) and 10.4% of polyunsaturated fatty acids (PUFA). The polyunsaturated ... [more ▼]

The fatty acids of camel meat were characterized by 54.6% of saturated fatty acids (SFA), 35.0% of mono-unsaturated fatty acids (MFA) and 10.4% of polyunsaturated fatty acids (PUFA). The polyunsaturated/saturated ratio was found equal to 0.25, that of ω6/ω3 equal to 4.1. The comparison by age showed no significant effect on the contents of FA, SFA, MFA, PUFA, ω6 and ω3 (P > 0.05). The comparison by gender and race has revealed highly significant effectsalmost on all studied parameters. Thus, the contents of the FA, SFA, MFA, PUFA, ω6 and ω3 werefound significantly higher in the Sahrawi males (P < 0.05). The females, Sahrawi as well as Tergui, have exhibited PUFA/SFA and ω6/ω3 ratios significantly higher than males (P < 0.05), but alsorelatively low levels of lipids and ω6/ω3 ratios deemed favorable. These results suggest betteroverall nutritional characteristics, essentially in females, and the importance of promoting thismeat for products of particular nutritional characters. [less ▲]

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See detailSelenium status in cattle herds in Wallonia (Belgium): overview and health management
Mehdi, Youcef ULg; Cabaraux, Jean-François ULg; Hornick, Jean-Luc ULg et al

in Veterinary World (2014), 7(12), 1144-1149

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See detailChemical composition of colostrum from Azawak cow in Niger compared with meta-analytical data
Abdou, Harouna; Marichatou, Hamani; Beckers, Jean-François ULg et al

in Animal Genetic Resources Information = Bulletin d'Information sur les Ressources Génétiques Animales = Boletin de Informacion sobre Recursos Geneticos Animales (2014), 55

This study aimed at comparing data obtained from Azawak zebu colostrum with literature data. The comparison was performed by a meta-analytical approach. Colostrum samples were hand-collected after 5 h ... [more ▼]

This study aimed at comparing data obtained from Azawak zebu colostrum with literature data. The comparison was performed by a meta-analytical approach. Colostrum samples were hand-collected after 5 h from 7 Azawak cows at calving between August 27, to September 10, 2009 in the Sahel. For data from literature, twenty one (21) references were identified in the following analytical databases: PubMed, Science Direct, Google scholar, Collection from University of Liege. The references were selected according to the following two criteria: i) only studies reported on bovine colostrum were used irrespective of breeds, and ii) among the selected studies, those not providing complete information to allow meta-analytical calculation were excluded. Samples were analyzed for immunoglobulins (IgG, IgM, IgA), lactoferrin, and chemical composition (dry mater, protein, fat, lactose, ash, Ca, P, NA, K, Mg). The mean levels of IgG, IgM, dry matter, protein and fat for Azawak cows were lower (P ˂ 0.001) than those obtained in other breeds; however colostrum from the Azawak was higher in IgA but the difference was not significant. For lactose and ash, mean values for Azawak cows were higher (P ˂ 0.001) than those from the literature. Contents of Ca, P, Na and Mg in Azawak bovine colostrum were significantly higher (P ˂ 0.001) than the mean levels in form the literature data. In conclusion, the colostrum from Azawak cows appears to be lower in most immunoglobulins, in fat and in protein than the values reported in the literature, but higher in lactose and minerals. This could be an adaptation to sahelian contraints. [less ▲]

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See detailNutritive value of Adenodolichos rhomboideus leaves compared with Leucaena leucocephala and Stylosanthes guianensis forages in indigenous goats in Lubumbashi (DR Congo).
Tshibangu, Muamba Innocent; Nsahlai, Ignatus Verla; Kiatoko, Mangeye Honoré et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2014), 18(2), 165-173

Forage from three species (Adenodolichos rhomboideus, Leucaena leucocephala, Stylosanthes guianensis) were evaluated by determining chemical composition, voluntary intake and apparent in vivo ... [more ▼]

Forage from three species (Adenodolichos rhomboideus, Leucaena leucocephala, Stylosanthes guianensis) were evaluated by determining chemical composition, voluntary intake and apparent in vivo digestibility of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fibre (NDF) and acid detergent fibre (ADF). Six goats (17.1±0.7 kg) were used in 3 x 3 double latin square design to determine the digestibility and intake of the three forages. Forage from S. guianensis had lower (p<0.001) CP content than L. leucocephala forage and A. rhomboideus leaves. Fibres content (ADF and NDF) were lower (p<0.001) in L. leucocephala (35%) forage than A. rhomboideus (59.5%) leaves and S. guianensis forages (56.5%). L. leucocephala forage was superior in CP, Ash, EE concentrations, digestibility and voluntary intake of CP. A. rhomboideus leaves had lower (p<0.05) apparent digestibility and intake of DM. Digestible CP intake were similar between A. rhomboideus leaves and S. guianensis forages. Low digestibility and voluntary intake of A. rhomboideus leaves may be due to negative effect of anti-nutritional factor such as tannin. Digestible CP was similar for A. rhomboideus leaves and S. guianensis forage. [less ▲]

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See detailEffect of bovine colostrum intake on growth, reproductive parameters and survival in red kids
Harouna, Abdou; Marichatou, Hamani; Beckers, Jean-François ULg et al

in Journal of Animal Physiology & Animal Nutrition (2014), 98(5), 845-852

The aim of this study is to evaluate the efficacy of frozen Azawak colostrum supplementation on body weight (BW), average daily gain (ADG), reproductive parameters (mean age at first parturition ... [more ▼]

The aim of this study is to evaluate the efficacy of frozen Azawak colostrum supplementation on body weight (BW), average daily gain (ADG), reproductive parameters (mean age at first parturition, fertility, fecundity, prolificacy) and mortality rate among red kids. The study was conducted at the goat farm secondary centre of Maradi in Niger from September 2010 to September 2011. The control animals (n = 20) were left with their mother, while the treatment animals (n = 20) received in addition 50 ml/animal/day of bovine colostrum at birth and 15 ml/animal/day from d2 to d15. Weight was measured weekly from birth to d365. Mortalities were also recorded over the same period. For reproductive parameters, observations began at weaning (d197). Growth rate was higher (p < 0.001) in supplemented animal, and the treatment effects on ADG were observed up to 150 day after the end of supplementation. A similar long-lasting trend was also observed in relation to the mortality rate (25% for ColG vs. 55% for ConG; p = 0.05). The age at first kidding tended to be lower in the treated group (13.8 0.7 vs. 14.1 0.8 month; p < 0.1). In conclusion, mild bovine colostrum supplementation induces a long-lasting positive impact on growth rate and to a lower extent on reproduction parameters and survival rate. [less ▲]

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See detailHeavy Metals Concentration in Adenodolichos rhomboideus (O. Hoffm.) Harms.
Tshibangu, M.; Nsahlai, V.; Kiatoko, M. et al

in International Journal of Current Research in Biosciences and Plant Biology (2014), 1(5), 16-27

A study was carried out in the mining zone, south east of the DRC, characterized by high soil concentrations of Cu, Co, Zn and Pb. This study aimed to (1) evaluate the contamination of leaves of ... [more ▼]

A study was carried out in the mining zone, south east of the DRC, characterized by high soil concentrations of Cu, Co, Zn and Pb. This study aimed to (1) evaluate the contamination of leaves of Adenodolichos rhomboideus by some trace metals (Cu, Co, Zn and Pb) as a function of pH and total concentrations in the soil; and (2) determine the phytoremediation and phytostabilisation potential of this species. Samples of leaves were either washed or left unwashed. Transfer and accumulation of metals were evaluated as a biological concentration factor (BCF), translocation factor (TF) and bio-accumulation coefficient (BAC). Soil pH values varied from 6.2 to 6.5. Soil heavy metals concentrations varied highly. Those in washed leaves minerals concentrations were largely reduced. All soil values differed (p<0.05) except Cu concentration. For unwashed leaves concentrations, sites differed (p<0.05) and Zn concentration differed (p<0.05) between topographies. For washed leaves, only Zn concentration was affected by sites. A. rhomboideus supported soil contaminated with Cu, Co, Zn and Pb; fodder contained potentially toxic Cu concentrations for sheep. It can be used in phytoremediation, in phytostabilisation and in phytoextraction of soil contaminated by Zn, Pb and Co and Zn. [less ▲]

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See detailIl y a d’autres voies pour obtenir des produits animaux
Bindelle, Jérôme ULg; Hornick, Jean-Luc ULg

in Ellies, Marie-Pierre (Ed.) Les filières animales françaises (2014)

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See detailEffect of bovine colostrum administration on plasma protein profile, growth, and survival in Red kid.
Abdou, Harouna ULg; Marichatou, Hamani; Beckers, Jean-François ULg et al

in Small Ruminant Research (2013), 117

This study evaluated the effect of colostrum from Azawak cows on plasma protein profile, 24 growth, and survival in Red kids from Niger. Forty (40) newborn kids were allocated to one 25 of two treatment ... [more ▼]

This study evaluated the effect of colostrum from Azawak cows on plasma protein profile, 24 growth, and survival in Red kids from Niger. Forty (40) newborn kids were allocated to one 25 of two treatment-groups: control (free access to water and the mother) and colostrum (free 26 access to water and the mother, but with additional 50 mL of colostrum/animal/day of birth 27 and 25 mL/animal/day from the 2nd to 15th day of age). Blood samples were collected into 28 EDTA vacutainer tubes by jugular puncture at 10 and 30 days of age. Total protein was 29 quantified by the Biuret method. The agarose gel electrophoresis was used to determine the 30 serum levels of albumin, -globulin, β1-globulin, β2-globulin, γ-globulin and the 31 albumin/globulin ratio. The animals from the colostrum group showed higher body weight 32 and average daily gain when compared to the control group (P < 0.001). The average 33 concentration in protein at the both sampling times reached higher values in the colostrum 34 than in the control group. At D10, the colostrum group tended (P < 0.07) to show higher 35 levels of -globulin and had higher values (P < 0.05) for β1-globulin. At D30, total protein 36 and β2-globulins were higher in colostrum group. Colostrum from Azawak cows seems to 37 have positive effects on some plasma proteins levels and on growth rate in Red kids. [less ▲]

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See detailEvaluation de la Teneur Sanguine en Sélénium dans le Sang des Vaches en Wallonie (Belgique)
Mehdi, Youcef ULg; Cabaraux, Jean-François ULg; Hornick, Jean-Luc ULg et al

in 20ième Rencontre Recherches Ruminants (2013, December 04)

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See detailAssessment of the selenium status in cattle herds in Wallonia
Mehdi, Youcef ULg; Dotreppe, Olivier ULg; Robaye, Vincent ULg et al

in 64th Annual Meeting of the European Federation of Animal Science (2013, August 26)

The selenium content is low in the soil of Wallonia, the southern part of Belgium. It is therefore logical that the selenium content in feedstuffs grown in these fields-grass, conserved forages, cereals ... [more ▼]

The selenium content is low in the soil of Wallonia, the southern part of Belgium. It is therefore logical that the selenium content in feedstuffs grown in these fields-grass, conserved forages, cereals and by-products- is also low. A survey was carried on 166 farms in Wallonia. The farms were located in 4 specific agronomy areas- Pays de Herve with mainly pastures (4farms)- Ardennes (a sub-mountainous area and pastures, 24 farms), Hesbays with mainly arable lands (55 farms) and Condroz with both pastures and arable (83 farms) There were herds with dairy cow, herds with beef cow and herds with both types of animals. The average age was 44±15 months for the cows and 18±6 months for the heifers. The blood samples were taken on five healthy animals of each herd, on the end of the winter just before the animals went to pastures. The selenium status was assessed by the activity of the Glutathion peroydase. The selenium status was extremely variable for the different farms of the 4 areas with variation coefficient of 56%. It was in Pays de Herve and in Hesbaye that the average selenium status was the highest at 53 and 56 µg Se/l. By contrast, it was in Ardenne and in Condroz that the status was the lowest, at 39 and 43 µg Se/l. The selenium status was, on the whole, higher in the dairy herds than in the beef herds owing to the higher selenium provision by the mineral mixtures and the compound feedstuffs added to the diet. Assuming that the normal selenium concentration in plasma being 70µg/l, it appeared also that 81% of the individual animals tested were below the normal Se concentration. It can thus be concluded from the present survey that the cattle herds in Wallonia are deficient in selenium. [less ▲]

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See detailBreeding of guinea-pig (Cavia porcellus, L. 1758) for meat production in Butembo, Democratic Republic of Congo : Literature review and breeding scheme
Sikiminywa, K.-L.; Godeau, Jean-Marie ULg; Nyongombe, U.-F. et al

in Revue Africaine de Santé et de Productions Animales (2013), 11(2), 75-83

Providing animal proteins to humans requires choosing the animal species to be raised when access to land is limited. Butembo, is a refuge city of conflicts area in the east of Democratic Republic of ... [more ▼]

Providing animal proteins to humans requires choosing the animal species to be raised when access to land is limited. Butembo, is a refuge city of conflicts area in the east of Democratic Republic of Congo, where guinea-pig (Cavia porcellus) is considered as food. Therefore the breeding of this animal is an option to make more meat available. Genetic selection of guinea pigs and popularization of improved farming techniques can contribute to solve problems of food security in the region. The present work aims at pointing out the major characteristics and constraints of guinea pig’s breeding and to present the zootechnical interest of this species compared to the traditional domestic ones, when agriculture land are scarce. A selection method of local guinea pigs is proposed and will be further applied in the region of Butembo. [less ▲]

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See detailSelenium in the environment, metabolism and involvement in body functions
Mehdi, Youcef ULg; Hornick, Jean-Luc ULg; Istasse, Louis ULg et al

in Molecules (2013), 18(3), 3292-3311

Selenium (Se34 79) is a metalloid which is close to sulfur (S) in terms of properties. The Se concentration in soil varies with type, texture and organic matter content of the soil and with rainfall. Its ... [more ▼]

Selenium (Se34 79) is a metalloid which is close to sulfur (S) in terms of properties. The Se concentration in soil varies with type, texture and organic matter content of the soil and with rainfall. Its assimilation by plants is influenced by the physico-chemical properties of the soil (redox status, pH and microbial activity). The presence of Se in the atmosphere is linked to natural and anthropogenic activities. Selenoproteins, in which selenium is present as selenocysteine, present an important role in many body functions, such as antioxidant defense and the formation of thyroid hormones. Some selenoprotein metabolites play a role in cancer prevention. In the immune system, selenium stimulates antibody formation and activity of helper T cells, cytotoxic T cells and Natural Killer (NK) cells. The mechanisms of intestinal absorption of selenium differ depending on the chemical form of the element. Selenium is mainly absorbed in the duodenum and caecum by active transport through a sodium pump. The recommended daily intake of selenium varies from 60 μg/day for women, to 70 μg/day for men. In growing ruminants the requirements are estimated at 100 μg/kg dry matter and 200 μg/Kg for pregnant or lactating females. A deficiency can cause reproductive disorders in humans and animals. [less ▲]

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See detailEffect of breed, age and sex on selenium content of dromedary
Sahraoui, Naima; Boudjenah, Saliha; Dotreppe, Olivier ULg et al

in Sahraoui Journal of Camelid Science (2013), 6

The dromedary camel is able to produce meat and milk in arid conditions and its production is appreciated by the autochthon population. The aim of this study was to determine the selenium concentration in ... [more ▼]

The dromedary camel is able to produce meat and milk in arid conditions and its production is appreciated by the autochthon population. The aim of this study was to determine the selenium concentration in 61 Longissimus dorsi muscle samples representing three Algerian camel breeds (Tergui, Sahraoui or Naili breeds), the age of the selected camels ranged between 8 months and 13 years old. The muscle samples were collected from the slaughterhouse of Ouargla (South East Algeria) representing 41 males and 20 female. The average content of selenium was 0.216 mg.kg-1of wet tissue, which is higher than values currently reported in most ruminants. The level of Se was not influenced by age and sex. However, Tergui breed contained significantly higher selenium than other breeds, which may be due to diet composition intake. In conclusion, the meat from camels in Algeria is a good source of selenium, assessing its nutritional interest for human. [less ▲]

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See detailMuscle Characteristics, Meat Tenderness and Nutritional Qualities Traits of Borgou, Lagunaire and Zebu Fulani Bulls Raised on Natural Pasture in Benin
Salifou, C.F.A.; Dahouda, Mahamadou; Houaga, I et al

in International Journal of Animal and Veterinary Advances (2013), 5(4), 143-155

This study was carried out to evaluate muscle characteristics, meat ten derness and nutritional qualities of Benin indigenous cattle raised on natural pasture. Thus, 10 Zebu Fulani, 10 Borgou and 5 ... [more ▼]

This study was carried out to evaluate muscle characteristics, meat ten derness and nutritional qualities of Benin indigenous cattle raised on natural pasture. Thus, 10 Zebu Fulani, 10 Borgou and 5 Lagunaire were slaughtered at 5 years old and their Longissimus thoracis muscle samples were collected for analyses. Lactate dehydrogenase activity of Zebu Fulani was higher (p<0.05) than that of Lagunaire (3494 vs 2813 μmol/min/g protein) while that of Borgou was not significantly different from those of the two other breeds (p>0.05). As for isocitrate dehydrogenase, citrate synthase, cytochrome oxidase and phosphofructokinase, no significant difference was observed between the three breeds (p>0.05). By contrast, the total collagen content of Borgou (5.2 mg OH-proline/mg dry matter) was higher (p<0.01) than those of Zebu Fulani (3.1 mg OH-proline/mg dry matter) and Lagunaire (3.2 mg OH-proline/mg dry matter). The myosin heavy chain isoforms I, IIa and IIx were not different between the three breeds. The dry matter, the crude protein and the ether extract percentage were not significantly varied from one breed to another. Branched-chain Fatty Acids and saturated fatty acids contents were identical in Lagunaire and Borgou (p>0.05) while the Zebu Fulani had the highest values (p<0.05). The ratio n-6 to n-3 fatty acids obtained in the Zebu was the lower. In general, according to the fatty acids profile, Borgou and Lagunaire bulls’ meat is better than that of Zebu for heart disease [less ▲]

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See detailBurundi: principales réalisations du projet de coopération (2ème partie)
Chapaux; Knapp, Emilie ULg; Ngiyimbere, S et al

in Wallonie Elevages (2013)

Lors d’un précédent article, nous avons décrit 2 systèmes d’exploitation importants au Burundi. Celui d’une station d’élevage avec des animaux de races locales (Sahiwal, Ankolè) parfois croisées avec des ... [more ▼]

Lors d’un précédent article, nous avons décrit 2 systèmes d’exploitation importants au Burundi. Celui d’une station d’élevage avec des animaux de races locales (Sahiwal, Ankolè) parfois croisées avec des races laitières et celui des petites exploitations détenant principalement des animaux de race frisonne. Les animaux de la station sont en pâturage semi-extensif et subissent de fortes carences alimentaires en saison sèche. Les moyennes journalières de production laitière varient de 2,5 l à 5l pour les Sahiwal et sont proches de 15 l dans les petites exploitations. Les productions plus élevées dans ces dernières s’expliquent par une génétique (race frisonne) et des facteurs environnementaux (couverture des besoins alimentaires, pression parasitaire) plus propices. A la station, dans des conditions d’élevage bien plus difficiles, les animaux croisés avec des races laitières ont une production légèrement plus élevée en saison humide où les fourrages ne manquent pas, mais une production moins élevée que celle des races locales en saison sèche. Cette observation montre l’importance de conserver le potentiel génétique des animaux tropicaux, bien adaptés à leur environnement (meilleure valorisation des fourrages et meilleure résistance aux maladies endémiques). Dans cet article, nous allons présenter succinctement les principales réalisations du projet (suivi de la reproduction, de l’alimentation et suivi parasitaire), que nous avons entreprises en concertation avec les responsables de l’élevage et les éleveurs. Dans le prochain article, nous présenterons les premiers résultats de l’essai de croisement BBB avec des races locales. [less ▲]

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See detailELEVAGE DES POULETS TRADITIONNELS OU INDIGÈNES AU SÉNÉGAL ET EN AFRIQUE SUBSAHARIENNE : Etat des lieux et contraintes
Ayssiwede, Simplice Bosco; Dieng, Abdoulaye; Houinato, M.R.B. et al

in Annales de Médecine Vétérinaire (2013), 158

Cette synthèse aborde les multiples rôles (sociaux, culturels, économiques, religieux, alimentaires et agricoles) de l’aviculture villageoise dans la lutte contre la pauvreté et l’insécurité alimentaire ... [more ▼]

Cette synthèse aborde les multiples rôles (sociaux, culturels, économiques, religieux, alimentaires et agricoles) de l’aviculture villageoise dans la lutte contre la pauvreté et l’insécurité alimentaire des populations africaines. Elle décrit les caractéristiques des différents systèmes existants (extensif et amélioré) et les pratiques d’alimentation observées dans ce sous-secteur avicole. Après avoir passé en revue les variétés phénotypiques existantes dans la population de poules locales africaines et les performances zootechniques des sujets exploités au Sénégal et dans diverses régions d’Afrique subsaharienne, elle met un accent particulier sur les différentes contraintes (précarité des d’habitats, fortes mortalités, maladies aviaires, prédateurs, irrégularité et déficit d’approvisionnement alimentaire, accès au crédit…) qui freinent le développement de l’aviculture traditionnelle au Sénégal et en Afrique subsaharienne. [less ▲]

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See detailAmélioration des bilans d'excrétion d'azote dans deux exploitations laitières de la région wallonne par un suivi raisonné des rations
Knapp, Emilie ULg; Istasse, Louis ULg; Hornick, Jean-Luc ULg et al

in Biotechnologie, Agronomie, Société et Environnement = Biotechnology, Agronomy, Society and Environment [=BASE] (2013), 17

Deux exploitations laitières situées l'une en Pays de Herve et l'autre en Ardenne ont fait l'objet de suivis réalisés en vue de déterminer les bilans d'excrétion azotée. Dans la première exploitation, les ... [more ▼]

Deux exploitations laitières situées l'une en Pays de Herve et l'autre en Ardenne ont fait l'objet de suivis réalisés en vue de déterminer les bilans d'excrétion azotée. Dans la première exploitation, les vaches étaient divisées en deux groupes, à savoir le groupes de hautes productrices (HP) et le groupe des basses productrices (BP), chaque groupe recevant une ration spécifique. Dans la seconde exploitation, les animaux constituaient un seul groupe. [less ▲]

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