Glucose Metabolism and Milk Yield of Cows Infused Abomasally or Ruminally with Starch
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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 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 کاملEffect of ruminally-protected leucine supplement on milk yield and plasma amino acids in dairy cows
Ludmila Křížová1*, Jiří Třináctý1, Michal Richter1, Sylvie Hadrová1 and Jan Pozdíšek2 1 Research Institute for Cattle Breeding, Ltd., Rapotín, Department of Animal Nutrition Physiology, Pohořelice, Vídeňská 699, Pohořelice, 691 23, Czech Republic 2 Research Institute for Cattle Breeding, Ltd., Rapotín, Department of Feed Production and Animal Nutrition, Rapotín, Výzkumníků 267, Vikýřovice 788 1...
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 Starch Infusion on Milk Synthesis in Low Yield Lactating Dairy Cows
The effect of starch infusion on production, metabolic parameters and relative mRNA abundance was investigated in low yield lactating cows from 86 days in milk. Six Holstein cows fitted with permanent ruminal cannulas were arranged into one of two complete 3×3 Latin squares and infused with a starch solution containing 800 grams starch for 16 days. The three treatments were: i) ruminal and abom...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1998
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(98)75889-8