Relative calving date of first-calf heifers as related to production efficiency and subsequent reproductive performance.

Freking?B A

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Relative calving date of first-calf heifers as related to production efficiency and subsequent reproductive performance.

机译：初产小母牛的相对产犊日期与生产效率和随后的繁殖性能有关。

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《Journal of animal science》 |1990年第7期|共页
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Freking?B A;
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中图分类畜牧、动物医学、狩猎、蚕、蜂;
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1. Effects of in utero heat stress on subsequent reproduction performance of first-calf Holstein heifers [J] . María I. Chavez, José E. García, Francisco G. Véliz, Spanish Journal of Agricultural Research . 2020,第2期

机译：子宫热应激对先后霍尔斯坦小母牛后续再现性能的影响
2. Reproductive performance, calf growth, and milk production of first-calf heifers sired by seven breeds and raised on different levels of nutrition. [J] . Cundiff?L V Journal of animal science . 1998,第6期

机译：七个品种在不同营养水平下繁殖的初生小母牛的繁殖性能，小牛生长和产奶量。
3. Reproductive performance, calf growth, and milk production of first-calf heifers sired by seven breeds and raised on different levels of nutrition. [J] . Cundiff?L V Journal of animal science . 1998,第6期

机译：七个品种在不同营养水平下繁殖的初生小母牛的繁殖性能，小牛生长和产奶量。
4. The effects of BRD in Holstein dairy calves during the first 120 days of ife on subsequent production, longevity, and reproductive performance as cows [C] . A.P. Schaffer, S.J. Bartle, R.L. Larson, Annual Conference of the American^Association^of^Bovine^Practitioners. . 2014

机译：红叶乳酪乳牛犊在IFE的前120天对奶牛的后续生产，寿命和生殖性能的影响
5. Effect of trace mineral form in supplements on first-calf heifer status, immunity, reproduction and calf performance. [D] . Swenson, Connie Kay. 1999

机译：补充物中的微量矿物质形式对初生小牛小母牛状态，免疫力，繁殖和小牛性能的影响。
6. Effect of postweaning heifer development system on average daily gain pregnancy rates and subsequent feed efficiency as a pregnant heifer [O] . S. A. Springman, H. R. Nielson, T. L. Meyer, 2017

机译：断奶后小母牛发育系统对平均日增重妊娠率以及作为小母牛的后续饲料效率的影响
7. Cause and effect of calving difficulty in first calf heifers on subsequent reproductive performance and weaning weights of progeny [O] . Bolze, R.P., Pruitt, R.J., Corah, L.R. 1983

机译：产犊困难的因果在第一胎小牛后继繁殖后代的表现和断奶体重

Relative calving date of first-calf heifers as related to production efficiency and subsequent reproductive performance.

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