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<blockquote data-quote="cbcr" data-source="post: 1551809" data-attributes="member: 16303"><p>We have had conversations with many beef producers about the milk yield, fat and protein of beef cows.</p><p></p><p>One comment that came up, is that the component content of the milk will vary from season to season. Cows that calve in the spring and are out of good green forage high in protein and will produce more volume of milk, cows that calve in the fall will be eating more forage in the form of hay and in many cases stockpiled grasses which will result in less volume of milk.</p><p></p><p>The reason for the comment above is that many producers see calves whither they are born in the spring or the fall still grow and the cow from either scenario can wean a good calf.</p><p></p><p>The difference is in the components. The cow on the green grass while producing a larger volume of milk, will more than likely be lower in components. The cow on the hay and stockpiled forage won't be producing the large volume of milk, but her components will be higher. </p><p></p><p>None of the current genomic beef tests offers any indication for the components. Neogen/GeneSeek does have a test for the dairy animals it is a Basic Plus which includes milk, fat and protein along with the cheese test (kappa casein, beta casein and beta lactoglobulin).</p><p></p><p>Some breeders and producers have expressed interest that they feel that knowing this information can aid in making some breeding decisions.</p></blockquote><p></p>
[QUOTE="cbcr, post: 1551809, member: 16303"] We have had conversations with many beef producers about the milk yield, fat and protein of beef cows. One comment that came up, is that the component content of the milk will vary from season to season. Cows that calve in the spring and are out of good green forage high in protein and will produce more volume of milk, cows that calve in the fall will be eating more forage in the form of hay and in many cases stockpiled grasses which will result in less volume of milk. The reason for the comment above is that many producers see calves whither they are born in the spring or the fall still grow and the cow from either scenario can wean a good calf. The difference is in the components. The cow on the green grass while producing a larger volume of milk, will more than likely be lower in components. The cow on the hay and stockpiled forage won't be producing the large volume of milk, but her components will be higher. None of the current genomic beef tests offers any indication for the components. Neogen/GeneSeek does have a test for the dairy animals it is a Basic Plus which includes milk, fat and protein along with the cheese test (kappa casein, beta casein and beta lactoglobulin). Some breeders and producers have expressed interest that they feel that knowing this information can aid in making some breeding decisions. [/QUOTE]
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