Utilization of Ruminally Infused Acetate or Propionate and Abomasally Infused Casein by Lactating Goats
نویسندگان
چکیده
منابع مشابه
Bioavailability of Ruminally or Abomasally Infused L-carnitine in Holstein Heifers
This study evaluated the relative bioavailability of carnitine delivered by different methods in dairy cattle. Four Holstein heifers were used in a split-plot design to compare ruminally or abomasally infused L-carnitine. The study included 2 main-plot periods, with infusion routes allocated in a crossover design. Within main-plot periods, each of 3 subplot periods consisted of 4-d infusions se...
متن کاملExcretion of purine derivatives by Holstein cows abomasally infused with incremental amounts of purines.
Five multiparous, ruminally cannulated Holstein cows (two lactating and three dry) weighing (X +/- SD) 667 +/- 35 kg were used to study the effect of abomasal purine infusion on the excretion of purine derivatives. Cows were fed corn silage four times daily at 90% of ad libitum intake (X = 9.16 kg of dry matter/d). Purines were infused into the abomasum as brewer's yeast suspensions in five inc...
متن کاملResponses to Post-ruminal Infusion of Casein and Glucose in Lactating Goats
Lactating goats fed a basal ration containing 11% crude protein, were infused intra-abomasally with 45g/d of either casein or glucose, in an attempt to determine whether milk production responsesto casein infusions could be attributed to gluconeogenesis from the casein. Infusions of casein increased the production of milk and milk constituents whereas the-production during glucose infusions was...
متن کاملIntestinal starch disappearance increased in steers abomasally infused with starch and protein.
Steers (379 +/- 10 kg) with ruminal, duodenal, and ileal cannulas were used in a 5 x 5 Latin square digestion trial to quantify and evaluate the relationship between intestinal protein supply and intestinal starch disappearance. Treatments were infusions of 0, 50, 100, 150, or 200 g/d of casein along with 1,042 g/d of raw cornstarch. Abomasal infusions were accomplished by passing tubing and a ...
متن کاملOxytocin release by infused prostaglandin.
Plasma oxytocin levels were measured serially in 22 women receiving prostaglandin E(2) or F(2alpha) intravenously for the induction of labour. Oxytocin was detected in the plasma of 19 of the 22 women; positive levels were found in 60 (43%) of 139 plasma samples, an incidence similar to that in the late first stage of spontaneous labour. Oxytocin was found in the maternal plasma even when the f...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1983
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(83)81855-4