Search
Now showing items 1-6 of 6
Elevation of feed intake in parasite-infected lambs by central administration of a cholecystokinin receptor antagonist
(Cambridge University Press, 1998-01)
The role of cholecystokinin (CCK) in modulating feed intake depression in parasite-infected lambs was investigated using CCK receptor antagonists (L364–718 and loxiglumide). Four experiments were carried out using ewe lambs ...
Nitrogen transactions along the digestive tract of lambs concurrently infected with Trichostrongylus colubriformis and Ostertagia circumcincta
(Cambridge University Press, 1991-09)
Twelve lambs, paired on the basis of live weight, were cannulated in the abomasum, in the proximal jejunum approximately 4 m distal to the pylorus and in the terminal ileum. Six were infected with 3000 Trichostrongylus ...
Effect of in vitro manipulation of pH on magnesium solubility in ruminal and caecal digesta in sheep
(Cambridge University Press, 1997-08)
Rumen and caecal digesta were collected, under anaesthetic, from eight sheep offered either hay, pelleted concentrate or pasture at the Johnston Memorial Laboratory, Lincoln University during 1991. Subsamples of digesta ...
The intake, digestion and protein degradation of grazed herbage by early-weaned lambs
(Cambridge University Press, 1992-09)
Sixty-four intact lambs and twenty-four lambs fitted with a duodenal cannula were weaned at 6 weeks of age and grazed pure species swards of either lucerne (Medicago sativa), white clover (Trifolium repens), ryegrass (Lolium ...
A model of magnesium metabolism in young sheep. Magnesium absorption and excretion
(Cambridge University Press, 1997-12)
A model of Mg metabolism in sheep is proposed. It is based on standard Michaelis-Menten enzyme kinetics to describe the transport of Mg across the rumen wall and passive diffusion to describe the absorption of Mg in the ...
Effect of intraruminal infusion of potassium on the site of magnesium absorption within the digestive tract in sheep
(Cambridge University Press, 1997-08)
Sixteen 2-year old female sheep were fitted with ruminal and duodenal cannulae at Johnstone Memorial Laboratory, Lincoln University during 1989–90. They were offered, at 2 hourly intervals, a pelleted concentrate diet (900 ...