Influence Du Stade De Végétation Et De l'ESPÈCE Végétale Sur Le Comportement Alimentaire Et Mérycique De Moutons Recevant Des Fourrages Verts Hachés

Gastrointestinal motor functions in ruminants

“…The intake in sheep is even greater (2.12% of body wt), and the time spent ruminating reaches 516 min/day (52,53,247). Rumination occurs also as a behavioral state depending on the coarseness of digesta and can be associated with drowsiness or even light sleep (Tables 3 and 4).…”

“…The types of regulation involved in voluntary food intake are 1 ) the gastrointestinal fill (51,52,76,165), hence the attempts to modify this peripheral factor by changes in reticulorumen smooth muscle tone, and 2) humoral feedback signals, especially metabolites (160, 164) and brain and gut hormones such as CCK (44), hence a way of food intake stimulation by use of specific antagonists, e.g., CCK antibodies.…”

Ingestive behaviour and related activities in ruminants

“…Calculated for a Table 2 Feeding and ruminating behaviour of groups of six wethers (60 kg bodyweight) fed 110 first cut green forages 22 ,24 Mean Range Differenees in behaviour have also been noted with different species of grasses. For example, an increase in CF content reduced the time spent eating for bromegrass more than for Italian ryegrass and tall fescue; it reduced also more markedly the eating rate with bromegrass than with perennial ryegrass 24 • According to Owen et al 44 , cocksfoot is ingested more rapidly by bullocks than fescue.…”

Activités alimentaires et méryciques de moutons recevant des foins à l'auge

“…Nous avons entrepris, chez le mouton, un travail systématique sur ce sujet, les ré-sultats concernant les fourrages verts (Dulphy et Demarquilly, 1974;Dulphy et Bechet, 1976; Michalet-Doreau, 1983) ont déjà été publiés, ainsi que ceux concernant les ensilages d'herbe (Dulphy, Michalet-Doreau et Demarquilly, 1984 (Dulphy et Bechet, 1976) : DUM = 26,92 …”