C ase S tudy : A comparison of 2 methionine sources for early lactation Holstein cows
نویسندگان
چکیده
منابع مشابه
Comparison of Different Lactation Curve Models to Describe Lactation Curve in Moroccan Holstein-Friesian Dairy Cows
In this study, the incomplete gamma function, an exponential function, a mixed-log function and a polynomial function were evaluated to describe the lactation curve in Moroccan Holstein-Friesian dairy cows. Data from 1990 to 1999, comprising 77130 monthly milk yields of 6029 dairy cows in 280 dairy herds, were used. Edits were carried out by considering the lactation length (5 d and
متن کاملC Ollaborative D Efence for D Istributed a Ttacks ( C Ase S Tudy of P Alestinian I Nformation S Ystems )
In this paper, we develop a comprehensive approach for protecting national Palestinian information systems. We do not restrict our attention to protecting each individual organization, but rather focus on the entire ecosystem as a whole. Therefore, the developed system will be opened for participation for all Palestinian governmental and non-governmental organizations who are interested in impr...
متن کاملAnalysis of Early Lactation Reproductive Characteristics in Holstein Cows
............................................................................................................................ i ACKNOWLEDGESMENTS .................................................................................................................... ii LIST OF TABLES...................................................................................................................v L...
متن کاملEffect of balancing low protein diets for methionine and lysine on performance of early lactation Holstein cows in hot environmental temperature
The aim of this study was to evaluate the effects of balancing low protein diets for methionine and lysine on performance of early lactation Holstein cows under hot environmental temperature. Twenty one multiparous Holstein cows in early lactation were allocated to three experimental rations including, 1) High protein ration with 17.5% CP, 2) Medium protein ration with 16% CP and 12 g/d rumen p...
متن کاملEstimation of Genetic Parameters for Lactation Curve Traits in Holstein Dairy Cows in Iran
The objectives were to estimate (co)variance components and genetic parameters for lactation curve traits in Holstein dairy cows in Iran. The used data were records on Holstein cows collected during January 2003 to December 2012 by the Animal Breeding Center of Iran (Karaj, Iran). In order to describe the lactation curve, an incomplete gamma function was fitted to 691200 test-day records on 962...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Professional Animal Scientist
سال: 2016
ISSN: 1080-7446
DOI: 10.15232/pas.2016-01520