1) cow culling rate
奶牛淘汰率
2) culling cow
淘汰奶牛
1.
Twenty head of Simmentaland and twenty head of Holstein culling cows were randomly selected,which were divided into 5 groups,the 4 groups of which were test ones and one group of which was control one,on the basis of the body weight and breed.
选取20头西门塔尔、20头荷斯坦淘汰奶牛按照体重和品种随机分5个组,其中4个试验组1个对照组,在全舍饲条件下进行不同饲喂方式、不同饲喂量、不同营养调控剂、不同能量水平的育肥试验,正试期为60 d。
3) out-of-datefarmcattle
淘汰耕牛
1.
Thisresearchgoeslikethis:Tietheout-of-datefarmcattletothesinglemangerwithashortrope,andraisethem,atthesametime,limittheiractivities.
中草药添加剂“肥牛散”对淘汰耕牛快速育肥的效果试验,是将淘汰耕牛采用短绳拴系加单槽饲养,限制运动,在相同日粮水平和饲养管理条件下,先驱虫,再育肥。
4) eliminate efficiency
淘汰效率
5) elimination rate
淘汰率
1.
The elimination rate,reason and diseases of the stud sows in some hogpen were investigated and the measures of reducing death and culling rate of stud sows were put forward.
对某猪场的母猪淘汰率、淘汰原因和疾病进行了调查,并提出了降低生产母猪死淘率的措施。
6) element elimination ratio(EER)
单元淘汰率
1.
The effect of element elimination ratio(EER) on the optimized tunnel shape obtained by ESO was analyzed in terms of Error area.
采用提出的误差面积作为指标,就单元淘汰率对基于ESO算法获得的最优隧道形状的影响进行了分析,研究表明:可以采用"误差面积"作为ESO算法精度的衡量尺度和迭代结束的准则;在ESO算法中,不同单元淘汰率获得的"最优"解是不相同的,不同单元淘汰率直接影响获得的隧道最优形状;单元淘汰率直接影响误差面积,总体上,单元淘汰率越小,误差面积越小,但在某些情况下,单元淘汰率越小,误差越大,单元淘汰率存在类似差分法中的"步长效应"。
补充资料：草地上的奶牛业
草地上的奶牛业
草地上的奶牛业 王培摄
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条