Biotin studies in pigs. 4. Biotin availability in feedstuffs for pigs and chickens.
Six pigs (initial weight 30 kg) were fitted with T-shaped cannulas in the ileum, 0.3 m from the ileocaecal junction. Each pig was given each of seven diets for a 10 d period. The diets contained wheat (var. Banks and Egret), barley, sorghum, meat meal, soya-bean meal or casein as test feedstuffs. The apparent digestibilities of biotin to the ileum of the pigs were 0.06, -0.03, -1.23, 0.18, 0.82, 0.12 and 0.95 for the diets containing wheat (var. Banks), wheat (var. Egret), sorghum, barley, meat meal, soya-bean meal and casein respectively. The same diets were given to 168 chickens. Digesta were collected from the terminal ileum after 7 d. The apparent digestibilities of biotin to the ileum of the chickens were 0.11, -0.10, -0.73, 0.05, 0.69, 0.28 and 0.75 for the diets containing wheat (var. Banks), wheat (var. Egret), sorghum, barley, meat meal, soya-bean meal and casein respectively.
Kopinski
J S
JS
Department of Animal Husbandry, University of Sydney, Camden, New South Wales, Australia.
Leibholz
J
J
Bryden
W L
WL
D000821:Animal Feed; D000818:Animals; D001710:Biotin / Q000378:metabolism*; D002645:Chickens; D004063:Digestion; D005772:Gastrointestinal Transit; D007082:Ileum / Q000378:metabolism; D007408:Intestinal Absorption; D008297:Male; D009753:Nutritive Value; D013552:Swine / Q000378:metabolism*
D001710:Biotin