Methionine Hydroxy Analog: Varying Levels for Lactating Cows
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TLDR
Fat content of milk increased with analog intake and free fatty acid and triglyceride content of serum α -lipoproteins and triglycerides of the β -lipoins were reduced in cows fed analog from those with no analog.About:
This article is published in Journal of Dairy Science.The article was published on 1970-05-01 and is currently open access. It has received 77 citations till now.read more
Citations
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Journal ArticleDOI
Lactational Responses to Postruminal Administration of Proteins and Amino Acids
TL;DR: Future research to delineate limiting nutrients for postruminal supplementation should prove fruitful and should make a major contribution to improved production by ruminant animals.
Journal ArticleDOI
Response of Lactating Dairy Cows to Abomasal Infusion of Amino Acids
TL;DR: Five trials involving infusion of amino acids into the abomasum of lactating Holstein cows suggested that lysine and methionine were first and second limiting, or co-limiting, for secretion of milk protein when rations consisting primarily of corn, corn silage, and alfalfa-grass hay were fed.
Journal ArticleDOI
Supplementation of methionine and selection of highly digestible rumen undegradable protein to improve nitrogen efficiency for milk production.
TL;DR: In this article, the effects of rumen-undegradable protein (RUP) sources and methionine (Met) supplementation on production efficiency and N utilization of lactating dairy cows were determined.
Journal ArticleDOI
Effect of abomasal infusion of sodium caseinate on milk yield, nitrogen utilization and amino acid nutrition of the dairy cow.
TL;DR: The estimated up take of each amino acid from the blood and the theoretical quantity of milk protein which could be synthesized by the mammary gland suggest phenylalanine, methionine, lysine, threonine, etc., to be the sequence of limiting essential amino acids for the lactating dairy cow.
Journal ArticleDOI
Responses of dairy cows to supplemental rumen-protected forms of methionine and lysine
Carl E. Polan,K.A. Cummins,Charles J. Sniffen,T.V. Muscato,J.L. Vicini,Brian A Crooker,J.H. Clark,D. G. Johnson,D.E. Otterby,B. Guillaume,L.D. Muller,Gabriella A. Varga,R.A. Murray,S.B. Peirce-Sandner +13 more
TL;DR: Serum amino acid responses primarily reflected differences in dietary protein source and rumen-protected amino acid, and responded linearly to lysine in early lactation.
References
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Journal ArticleDOI
Milk production of cows on protein-free feed.
TL;DR: The synthesis of bacterial protein in the rumen of lactating cows fed on purified carbohydrates, with urea and ammonium salts as the sole sources of nitrogen, can be increased to a level adequate not only for the maintenance of the cow but also for a relatively high milk production.
Journal ArticleDOI
Bovine Ketosis and Depressed Fat Test in Milk: A Problem of Methionine Metabolism and Serum Lipoprotein Aberration
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The Growth and Composition of Wool II. The Effect of Casein, Gelatin, and Sulphur-Containing Amino Acids Given Per Abomasum
PJ Reis,PG Schinckel +1 more
TL;DR: Sal supplements of casein, gelatin, and OfL·cysteine and DL-methionine added to the proteins has been examined for effect on wool growth and the sulphur content of wool of aboma.