Effect of water intake on dietary mannitol, sodium chloride and food frequency in healthy cats

in Proceedings of the 10th Congress ESVCN (2006)

Less intensified grazing management with growing fattening bulls

in Animal Research (2006), 55(2, MAR-APR), 105-120

Animal performance, composition and quality of meat from Belgian Blue bulls either fattened indoors (FI) or finished indoors after a previous grazing period were studied during six years. During the ... [more ▼]

Animal performance, composition and quality of meat from Belgian Blue bulls either fattened indoors (FI) or finished indoors after a previous grazing period were studied during six years. During the grazing period, three intensification managements were tested on a permanent pasture conducted as set stocking. The intensification levels were either high (HN:140 kg N(.)ha(-1) with 6 bulls(.)ha(-1)) or moderate with a 33% reduction of nitrogen fertilisation but with the same stocking rate (MN:93 kg N(.)ha(-1), 6 bulls(.)ha(-1)) or low with no nitrogen fertiliser but with a reduced stocking rate (ON, 4 bulls(.)ha(-1)). The levels of intensification did not affect sward characteristics and chemical composition of the grass. The apparent nitrogen efficiency per ha was larger in the ON plot than in the HN and MN plots ( 26 vs. 14%). The average daily gain of bulls during the grazing season was similar in the three groups at 1.0 kg(.)d(-1). The bulls from the FI group were characterised by average daily gains significantly higher than the bulls which were previously grazed and then finished indoors (1.5 vs. 1.2 kg(.)d(-1); P < 0.01). The slaughter weight, the carcass composition, the dressing percentage and most of the meat quality parameters were similar between the treatment groups. The inclusion of a grazing period in the fattening system produced a meat which was darker (lower L*, P < 0.01), more red (higher a*, P < 0.05) and had a higher content of linolenic acid (C18:3 n-3) than that of the animals fattened indoors. [less ▲]

Selenized fertilizers: effects on locally produced feedstuffs, on suckling cows and on beef meat

Conference (2006)

Is There a Difference Between Energy Balance of Cats Hospitalised for Surgical or for Medical Reasons?

in Journal of Veterinary Internal Medicine (2005, November), 19(6), 939

Effects of feeding frequency on water intake in cats

in Journal of Veterinary Internal Medicine (2005, May)

Transport sanguin et métabolisme hépatique des acides gras chez le ruminant

in Annales de Médecine Vétérinaire (2005), 149

Blood transport and hepatic metabolism of fatty acids in ruminants present several particularities. The plasma profile is characterized by a very small proportion of triacylglycerols-rich lipoproteins— ... [more ▼]

Blood transport and hepatic metabolism of fatty acids in ruminants present several particularities. The plasma profile is characterized by a very small proportion of triacylglycerols-rich lipoproteins— chylomicrons and very low density lipoproteins — and a very high proportion of high density lipoproteins, which can reach 80 % of the total lipoproteins. This distribution is concomitant with a low triacylglycerol and non esterified fatty acids plasma content, but with very high esterified cholesterol and phospholipid contents. Futhermore, the ruminant is characterized by the secretion of the majority of very low density lipoproteins at intestinal level and by a very low hepatic capacity to export triacylglycerols in these lipoproteins ; ruminant is therefore more sensible to steatosis. Moreover, the intrahepatic lipogenesis of ruminant is reduced, with as results a dependence on fatty acids blood import, the fatty acids being then directed to one of the two major pathways of intrahepatic metabolism, oxidation or esterification into triacylglycerols. [less ▲]

Acides gras et métabolisme énergétique des muscles squelettiques chez le bovin

in Annales de Médecine Vétérinaire (2005), 149(4), 188-201

Energy metabolism of skeletal muscles in cattle is characterized by several specificities, mostly related to particularities of the digestive physiology. Energy metabolism of muscles relies on ... [more ▼]

Energy metabolism of skeletal muscles in cattle is characterized by several specificities, mostly related to particularities of the digestive physiology. Energy metabolism of muscles relies on preferential utilization of some nutrients, such as volatile fatty acids and ketone bodies on the one hand, and glucose on the other hand, the contribution of non-esterified long chain fatty acids being limited. As for other species, nutrients utilization is influenced by the nature of muscle fibers, leading to preferential metabolic pathways. Energy metabolism can be either more oxidative, oxido-glycolytic, or glycolytic. Close relationships are found between energy metabolism, chemical composition of muscle - more particularly its fat level - and organoleptic quality of meat. [less ▲]

Influence of obesity on plasma lipid and lipoprotein concentrations in dogs.

in American Journal of Veterinary Research (2005), 66(1), 81-6

OBJECTIVE: To determine effects of obesity and diet in dogs on plasma lipid and lipoprotein concentrations by assaying plasma leptin and ghrelin concentrations and determining total plasma cholesterol and ... [more ▼]

OBJECTIVE: To determine effects of obesity and diet in dogs on plasma lipid and lipoprotein concentrations by assaying plasma leptin and ghrelin concentrations and determining total plasma cholesterol and triglyceride concentrations as well as the concentrations of cholesterol and triglycerides in various lipoprotein classes (ie, very-low-density, low-density, and high-density lipoproteins). ANIMALS: 24 Beagles; 12 lean (mean [+/- SEM] body weight, 12.7 +/- 0.7 kg) and 12 chronically obese (21.9 +/- 0.8 kg) dogs of both sexes, between 1 and 9 years old. PROCEDURES: Total plasma cholesterol and triglyceride concentrations; lipoprotein cholesterol and triglyceride concentrations; and plasma ghrelin, leptin, free fatty acids, insulin, and glucose concentrations were measured and compared between lean and obese dogs, both of which were fed a complete and balanced maintenance diet. Chronically obese dogs were subsequently fed a high-protein low-energy diet to evaluate effects of diet composition on plasma lipid and lipoprotein measurements. RESULTS: Chronic obesity resulted in a significant decrease in plasma ghrelin concentration and a significant increase in plasma leptin, cholesterol, and triglyceride concentrations in dogs. High total plasma cholesterol and triglyceride concentrations resulted from increased cholesterol and triglyceride concentrations in all lipoprotein fractions. In obese dogs, modification of diet composition resulted in beneficial effects on plasma lipid and leptin concentrations, even before weight loss was observed. CONCLUSIONS AND CLINICAL RELEVANCE: Correlations exist between obesity and plasma measurements (ie, lipoproteins, leptin, insulin, and ghrelin) commonly associated with obesity. Modification of diet composition to control energy intake improves plasma lipid and leptin concentrations in obese dogs. [less ▲]

Selenium status around peripartum in beef cows and claves offered grass silage and barley produced with selenium enriched fertilizers

in Book of absracts of the 56th Annual Meeting of the European Association for Animal Production (2005)

Variations des teneurs en sélénium dans les aliments pour bovins et statut en sélénium chez l'animal

in 12ièmes Rencontres autour des Recherches sur les Ruminants (2005)