References of "Productions Animales"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailPathologies infectieuses du lapin en élevage rationnel
Licois, D.; Marlier, Didier ULg

in Productions Animales (2008), 21(3), 257-268

La pathologie représente un poids économique important en élevage rationnel du lapin de chair. En effet, un quart des lapereaux meurent entre la naissance et la vente. Chez les reproductrices, sur trois ... [more ▼]

La pathologie représente un poids économique important en élevage rationnel du lapin de chair. En effet, un quart des lapereaux meurent entre la naissance et la vente. Chez les reproductrices, sur trois femelles entrant dans une bande, une meurt avant la 3ème mise bas, une autre est réformée pour cause de performances insuffisantes (infertilité) ou problème sanitaire, une seule assure une production. Deux syndromes principaux sont classiquement identifiés chez le lapin : le syndrome respiratoire qui domine chez les adultes et le syndrome digestif, plus fréquent chez les lapins en croissance. Dans cette synthèse nous ferons le point sur les principales maladies infectieuses pouvant être rencontrées dans les élevages rationnels et sur les recherches développées au cours de ces dernières années concernant les agents étiologiques impliqués. [less ▲]

Detailed reference viewed: 84 (10 ULg)
Full Text
Peer Reviewed
See detailLes fibres dans l’alimentation des truies gestantes : effets sur la nutrition, le comportement, les performances et les rejets dans l’environnement
Philippe, François-Xavier ULg; Remience, Virginie; Dourmard et al

in Productions Animales (2008), 21(3), 277-290

Feeding gestating sows with high fibre diets (HFD) helps induce satiety without excessive energy intake. Neutral Detergent Fibre (NDF) (15-20%) enables sows to adapt their feed intake to their needs ... [more ▼]

Feeding gestating sows with high fibre diets (HFD) helps induce satiety without excessive energy intake. Neutral Detergent Fibre (NDF) (15-20%) enables sows to adapt their feed intake to their needs. Therefore, ad libitum feeding becomes possible, reducing the costs of feeding equipment. Fibre effect on the feeling of satiety is due among others to the higher amount of feed intake, the increase of eating time and delay in gastric emptying. Sow welfare improvement due to the feeling of satiety has for consequence a reduction in the occurrence of stereotypes and aggressions. The disadvantage of HFD feeding is linked to a reduction of cell component accessibility to digestive and microbial enzymes. However, energy efficiency of fibre degradation is better for sows than for growing pigs. If the amount of feed offered takes into account the reduction in energy digestibility, sow performance is not affected. Besides, the increased capacity of the digestive tract may result in an increased capacity of the digestive tract may result in an increased feed intake during early lactation, supporting higher milk production and limiting the body reserve mobilisation. On the environmental level, increasing fibre content reduces ammonia emissions but increases methane emissions. [less ▲]

Detailed reference viewed: 129 (13 ULg)
Full Text
Peer Reviewed
See detailThe welfare of farmed pigs
Meunier-Salaun, Marie-Claude; Bizeray, D.; Colson, V. et al

in Productions Animales (2007), 20(1), 73-80

The current intensive system of pig production is the outcome of better control of the environment, prevention of infectious disease, a feeding strategy adapted to the nutritional needs of pigs, and ... [more ▼]

The current intensive system of pig production is the outcome of better control of the environment, prevention of infectious disease, a feeding strategy adapted to the nutritional needs of pigs, and genetic selection oriented towards increased growth and reproductive performances. Meanwhile, certain practices have been shown to be detrimental to pig welfare. During the last few decades, research conducted on pig welfare has mainly been oriented towards measurement of behavioural and physiological responses to housing, feeding and management practices. The results have demonstrated the animals' difficulties to adapt to their conditions, particularly regarding changes in social relationships, impoverishment of the environment, restriction of space, and the development of management practices leading to discomfort, fear or pain. This review presents a summary of the scientific research conducted on the consequences of husbandry conditions and management practices on pig welfare. Finally, some possible solutions are presented for improving pig welfare by providing greater harmony between the animals and their environment. [less ▲]

Detailed reference viewed: 28 (4 ULg)
Full Text
Peer Reviewed
See detailBovine meat production from culled females
Cabaraux, Jean-François ULg; Dufrasne, Isabelle ULg; Roux, Marc et al

in Productions Animales (2005), 18(1), 37-48

In the European Union, half of slaughtered adult cattle are female, including 60 % of adult cows and 40 % of heifers, mainly from dairy races. The animals are culled for multiple reasons that vary from ... [more ▼]

In the European Union, half of slaughtered adult cattle are female, including 60 % of adult cows and 40 % of heifers, mainly from dairy races. The animals are culled for multiple reasons that vary from one country to another and even from one herd to another. Fattening is therefore more difficult and haphazard than that of young bulls, due to the heterogeneity of their characteristics at the culling time, such as: age, race and format, medical and physiological statutes, and body condition score. The methods of finishing (outside or inside) and of feeding are also significant sources of variation. This article proposes to review the principal factors influencing the finishing of culled females. [less ▲]

Detailed reference viewed: 23 (3 ULg)
Full Text
Peer Reviewed
See detailDiagnosis and monitoring of pregnancy in sheep: reality and perspectives
El Amiri, Bouchra; Karen, Aly; Cognié, Yves et al

in Productions Animales (2003), 16(2), 79-90

The present review aims at presenting different methods for pregnancy diagnosis. Since these methods are to be used in the herds, precocity, sensitivity, specificity, accuracy to predict pregnant and non ... [more ▼]

The present review aims at presenting different methods for pregnancy diagnosis. Since these methods are to be used in the herds, precocity, sensitivity, specificity, accuracy to predict pregnant and non-pregnant ewes, and the possibility to determine fetal numbers are carefully analysed. The progesterone assay is accurate as early as day 17th after fecundation; but the fertilization day must be precisely known. The pregnancy specific or associated glycoproteins (PSPB/PAG) assay is highly sensitive and specific at day 22 in blood and at day 32 in milk samples. However, this assay does not allow to predict the fetal number. The ultrasonography B-mode used on 30 days of gestation gives very good or excellent performance in terms of sensitivity and specificity depending on the practitioner. The method is also able to predict the real time fetal number. [less ▲]

Detailed reference viewed: 147 (0 ULg)
Full Text
Peer Reviewed
See detailInfluence du caractere culard sur la production et la qualité de la viande des bovins Blanc Bleu Belge
Clinquart, Antoine ULg; Hornick, Jean-Luc ULg; Van Eenaeme, Christian ULg et al

in Productions Animales (1998), 11(4), 285-297

When compared to animals of the dual purpose type in the same breed, Belgian Blue double muscled bulls exhibit, at least, similar average daily gain with lower feed intake. The higher feed efficiency in ... [more ▼]

When compared to animals of the dual purpose type in the same breed, Belgian Blue double muscled bulls exhibit, at least, similar average daily gain with lower feed intake. The higher feed efficiency in the double muscled type is mainly explained by the composition of the weight gains, the muscle content is minimum 60 kg higher and the fat content 30 kg lower than in the dual purpose type when slaughtered at a similar liveweight. In both types, the dressing percentage and the lean meat proportion in the carcass increase with final liveweight.The chemical composition and the sensory characteristics of meat are also influenced by double muscling. The fat content is reduced and the polyunsaturated fatty acids proportion is increased in the double muscled type, resulting in a nutritional advantage. The difference in sensory characteristics could be, only partially, explained by the faster post mortem pH drop. The paler meat is mainly related to the myoglobin content. The advantage of the double muscled type in terms of tenderness, due to a low collagen content, is not exhibited in a "choice" cut of the carcass with a low level of collagen. Finally, according to most of the available data, the water holding capacity of meat of double muscled animals seems not very different.The concentrations of several blood metabolites indicate a partition of the absorbed nutrients propitious to protein deposition and unpropitious to fat deposition in double muscled animals. During the fattening period, this specific partition can be related to endocrine characteristics, mainly growth hormone and insulin. [less ▲]

Detailed reference viewed: 77 (7 ULg)
Peer Reviewed
See detailUtilisation des matières grasses chez les bovins à l'engraissement
Clinquart, Antoine ULg; Micol, Didier; Brundseaux, Christophe et al

in Productions Animales (1995), 8

Detailed reference viewed: 19 (0 ULg)