系列
发表于 2025-3-25 05:44:52
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媒介
发表于 2025-3-25 11:01:57
A Note on the Comparison of Holsteins and Friesians for Growth, Feed Efficiency and Carcass Traitsaughter weights of the Holstein have usually been greater because they have fattened more slowly. There is some evidence that the Holstein is less efficient than the Friesian..Holstein cattle had longer carcasses and legs than Friesians and had poorer shape. This poor shape was associated with sligh
FLAX
发表于 2025-3-25 11:41:23
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毁坏
发表于 2025-3-25 17:56:31
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MAL
发表于 2025-3-25 23:04:35
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抓住他投降
发表于 2025-3-26 00:51:23
Sire Breed Influence of Various Beef Breeds on Calving Performance, Growth Rate, Feed Efficiency, Cadiscussed..The discussion is based on results from a beef x dairy crossbreeding project in which 15 European beef or dual purpose breeds were tested as sire breeds in crossbreeding with Danish Red, Danish Friesian, and, to a lesser extent, Jersey cows..When crossbreds were tested in intensive young
收藏品
发表于 2025-3-26 08:18:54
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四牛在弯曲
发表于 2025-3-26 11:12:08
Beef Production in Danish Jersey: Charolais x Jersey Crossingsows. In respect of butterfat production, the Jersey out-yields all other breeds, and its small size, good constitution and high longevity make it one of the most efficient dairy breeds of to-day..Its obvious lack of size and muscularity limits its value in beef production, but extensive experimental
繁荣地区
发表于 2025-3-26 15:22:43
Performance of Belgian White-Red Crossbreds Used for Beef Production — Preliminary Resultsn during the finishing period amounted to 1025, 1323, 1282 and 1277 g respectively for bulls of the aforementioned crosses; growth rate was not increased compared with the purebred White-Red bulls. Charolais, Piedmont and White-Blue female crossbreds gained 612, 496 and 553 g daily compared with 578
有害
发表于 2025-3-26 18:23:39
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