Reports on the findings of a United States Department of Agriculture (UDA) survey on the decline in the number of Wisconsin dairy cows and farmers from February to March 1996. State's annual production; Volatility of...
There are a number of dairy cows 翻译结果4复制译文编辑译文朗读译文返回顶部 Here is how many cows 翻译结果5复制译文编辑译文朗读译文返回顶部 Here has the multi-discount cow 相关内容 a北洋大学 null[translate] a本科阶段我去过很多地方 The undergraduate course stage I have gone to very many places...
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L. 1953: Interrelationships between site of deposition, dosage, and numbers of spermatozoa in diluted semen and fertility of dairy cows inseminated ... D Olds,D Seath,MC Carpenter,... - 《Journal of Dairy Science》 被引量: 0发表: 1953年 The Importance of Numbers of Spermatozoa in Relation...
Animal welfare guidelines and handling procedures recommended by the São Paulo State (Brazil) law number 11.977 were strictly followed throughout the entire experimental period. Results A total of 6911 COCs were recovered after 432 OPU sessions performed in 36 donor cows, resulting in 2325 in vi...
What do we really know about the number and distribution of farms and family farms in the world? Background paper for the State of Food and Agriculture 2014 The agricultural economics literature provides various estimates of the number of farms and small farms in the world. This paper is an ...
KM Krause,DK Combs,KA Beauchemin - 《Journal of Dairy Science》 被引量: 187发表: 2003年 Effects of Feed Composition and Stage of Lactation on the Short-term Feeding Behavior of Dairy Cows Twenty Holstein-Friesian cows were assigned to one of four feeding groups throughout lactation in a full...
During their growth stage, dairy cattle are most susceptible to major environmental and disease perturbations, such as BRD and enteric diseases (Callan and Garry, 2002). Bovine respiratory disease is a complex disease caused by a multitude of pathogens, and it has been reported to cause a pre...
Six pregnant primiparous dairy cows in good health with no previous history of mastitis were assigned to the study 40 d before expected calving. Animals were housed at the University of Arizona Dairy (Tucson, AZ) and received close-up rations until they calved and lactating ration after calving...
dairy cowdry matter intakeimmediately after calvingparityWe investigated the effect of parity number on the dry matter intake (DMI) of cows during the first week after calving. Eighty‐three cows were evaluated from 14 days before to 7 days after calving. DMI and milk yield were measured for ...