Meta-analysis of lactation performance in dairy cows receiving supplemental dietary methionine sources or postruminal infusion of methionine
نویسندگان
چکیده
منابع مشابه
Effect of feeding two different forms of supplemental methionine on the lactation performance and health status of dairy cows
The objective of this experiment was to assess the effect of a newly developed form of methionine – isopropylester 2-hydroxy-4 (methylthio) butanoic acid, called MetaSmart on the lactation performance, in particular the production of milk protein, and on the physiological status of dairy cows. At the same time, the efficiency of this supplement was compared with ruminally protected form of meth...
متن کاملBioavailability of different dietary supplemental methionine sources in animals.
Dietary methionine is indispensable for animal maintenance, growth and development. L-methionine (L-Met), and its synthetic forms DL-methionine (DL-Met) and 2-hydroxy-4 (methylthio) butanoic acid (HMTBA) are common supplemental methionine sources in animal diets. There are different characteristics for cellular absorption, transport, metabolism and bio-efficiency between these three dietary met...
متن کاملEffects of a rumen-protected form of methionine and a methionine analogue on the lactation performance of dairy cows
The objective the present study was to determine the influence of a supplemental methionine analogue, the isopropyl ester of 2-hydroxy-4-(methylthio)-butanoic acid, commercially available as MetaSmartTM, on lactation performance, particularly milk protein production. The effects of this preparation were compared with those of a rumen-protected form of methionine, marketed as SmartamineTM M. Exp...
متن کاملImpact of dietary supplemental methionine sources on sensory measurement of odor-related compounds in broiler excreta.
An experiment was conducted to detect differences in odor characteristics of broiler excreta due to utilization of different supplementary Met sources by a trained human descriptive aroma attribute sensory panel. The 5 treatment groups were no supplemental Met (control group), sodium methioninate aqueous solution, dry Met hydroxy analogue, liquid Met hydroxy analogue, and DL-Met. Two trials wer...
متن کاملThe impact of supplemental dietary methionine sources on volatile compound concentrations in broiler excreta.
The impact of different Met sources on broiler fecal odor volatiles was determined by evaluating the types of sulfur compounds produced in broiler excreta. Two experiments were conducted using straight-run broiler chicks randomly distributed in battery cages, with 3 replicate pens of 16 birds each. The treatment groups were 1) dry Met hydroxy analogue (dry MetHA), 2) sodium methioninate aqueous...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2014
ISSN: 0022-0302
DOI: 10.3168/jds.2014-8220