Brian Sloan likes the comment:
Methionine has many metabolic roles, so it is not just protein in milk. In any case if you are interested in raising your milk protein you have to consider also the metabolizable Lysine, the rapport between metabolizable Lys and metabolizable Met and the quantity of metabolizable Lys & Met /Mcal ME.A rough guideline would be a % over total metabolizable protein of 6,8-7% Lys and 2.40-2,70% Met ...
Brian Sloan likes the comment:
Hazem,Cows do have a requirement for nitrogen in the rumen and for metabolizable amino acids in the intestine, the art of formulating a diet is precisely to cover these requirements in the most profitable possible way. Mepron or any other protected amino acid is an amino acid, it is not a protein and it is not NPN, and it does not need to be, and it is intended to deliver its payload in the intest ...
Participation in Forum on May 3, 2020
In a follow up experiment with the same team at USDA Wisconsin, a Negative Control treatment was also included to allow a better assessment of what part of the improvements in N-efficiency were simply due to reducing N intake and what part were due to an improvement in performance through amino acid balancing.
Effect of feeding different sources of rumen-protected methionine on milk production an ...
Brian Sloan likes this technical article:
IntroductionDairy farm profitability depends on a herd’s reproductive performance, but this relationship is complex. Farmers and consultants can easily assess reproductive performance by benchmarking pregnancy rate (i.e., 21-d pregnancy rate) or other reproductive metrics, but they find it difficult to measure the economic impact (e.g., profitability) of changes in reproductive outcomes, alt ...
Participation in Forum on April 20, 2020
Yes AA formulation can be challenging to achieve cost effective rations and maximize performance, minimize metabolic disorders and optimize reproduction, but is certainly very achievable. Protected methionine and lysine should be treated like any other ingredients in the ration. First they should only be selected based on their validated metabolizable methionine and lysine contribution. Afterwards ...
Participation in Forum on March 24, 2014
The author refers to milk yield - is this volume or ECM... What are the effects of photoperiod manipulation on milk composition. It is well documented that season ie long or short photoperiod is the major determinant of milk protein and fat %.
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July 30, 2009