China Dairy ›› 2021, Vol. 0 ›› Issue (7): 32-38.doi: 10.12377/1671-4393.21.07.06

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Research on Dairy Cow Reproduction and Milk Production Performance in different months from 18 provinces of China in 2020

XU Wei1, DONG Fei1, ZHANG Saisai1, JIANG Xinggang2, REN Dequan3, MA Zhifen1,4,*   

  1. 1EYIMU Science and Technology (Beijing) Co., Ltd., Beijing 100016;
    2Branch of Animal Husbandry and Veterinary of Heilongjiang Academy of Agricultural Sciences, Qiqihar; Heilongjiang 161005;
    3Animal Husbandry Station of Hailar District of Hulun Buir, Hulun Buir Inner Mongolia 021008;
    4Beijing Institute of animal husbandry and veterinary medicine, Chinese Academy of Agricultural Sciences, Beijing 100193
  • Online:2021-07-25 Published:2021-08-10

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Abstract: The objectives of current study were to ensure the performance of dairy cow reproduction and milk production in different months,by analyzing 201 scaled dairy farms' monthly reproduction and production data from 18 provinces of China in 2020.Results showed that: (1) Cows' conception rate and pregnancy rate began to decline in May and June,decreased significantly in July and August,but remained low in September. From July to September, second and more than second parity cows'conception rate was significantly lower than first parity (average 4.3 to 5.1 percentage points lower);(2) Heifers' pregnancy rate and conception rate were relatively stable within 12 months,and no significant decrease from June to August;(3) After June,lactating cows' yield decreased slowly with an average around 0.50 to 0.90 kg,peak yield decreased obviously after June.Peak yield was largely decline in multiparous cows and less decline in primiparous cows.Therefore, in order to reduce the influence of heat stress on dairy cows' production performance in different months and improve the production performance of dairy cows,it is suggested that the dairy farms in different areas should take measures to prevent heat stress,optimize breeding program and improve nutrition and feeding management.

Key words: dairy cow, conception rate, milk yield, temperature, heat stress

[1] Berman A,Folman Y,Kaim M,et al.Upper critical temperatures and forced ventilation effects for high-yielding dairy cows in a subtropical climate[J].Journal of Dairy Science,1985,68(6):1488-1495.
[2] West J W.Effects of heat-stress on production in dairy cattle[J]. Journal of Dairy Science,2003,86(6):2131-2144.
[3] Ravagnolo O,Misztal I,Hoogenboom G.Genetic component of heat stress in dairy cattle,development of heat index function[J].Journal of Dairy Science,2000,83(9):2120-2125.
[4] Rensis F D,Scaramuzzi R J.Heat stress and seasonal effects on reproduction in the dairy cow--a review[J].Theriogenology,2003,60(6):1139-1151.
[5] Huang C,Tsuruta S,Bertrand J K,et al.Environmental effects on conception rates of holsteins in new york and georgia[J].Journal of Dairy Science.2008,91(2):818-825.
[6] 牛华锋,侯文乾,徐明,等. 不同月份对内蒙古地区规模化牧场奶牛繁殖性能的影响[J]. 中国奶牛,2018(1):23-26.
[7] 郭刚,李锡智,张振山,等. 北京地区荷斯坦牛21 天妊娠率规律分析[J]. 中国奶牛,2012(5):49-50.
[8] 王景霖,董飞,马志愤,等. 不同季节及气候区对奶牛繁殖效率的影响[J]. 中国奶牛,2018(12):18-23.
[9] 武明,王宪龙,李锡智,等. 北京地区季节变化对奶牛发情和受胎的影响[J]. 中国畜牧杂志,2011,47(13):75-78.
[10] Gilad E,Meidan R,Berman A,et al.Effect of heat stress on tonic and GnRH-induced gonadotrophin secretion in relation to concentration of oestradiol in plasma of cyclic cows[J].Journal of Reproduction and Fertility,1993,99(2):315-321.
[11] 胡明德,杨葆春,刘永福. 胎次和配种月份对荷斯坦奶牛受胎率影响的研究[J]. 黑龙江畜牧兽医,2003(3):16-17.
[12] 朱胜杰,孙祯保. 季节·胎次与年单产水平对荷斯坦牛受胎率的影响[J].安徽农业科学,2015(26):148-150.
[13] Armstrong D V.Heat stress interaction with shade and cooling[J].Journal of Dairy Science,1994,77(7):2044-2050.
[14] 曲强. 动物生理[M]. 中国农业大学出版社,2007.
[15] 王建平,王加启,卜登攀,等上海地区季节变化对奶牛产奶性能影响的研究[J]. 中国畜牧兽医,2008,35(8):70-73.
[16] 徐伟,张利斌,韩萌,等. 山西省夏季奶牛热应激程度及奶损失调查[J]. 黑龙江畜牧兽医(上半月),2014(10):10-14.
[17] 高民,杜瑞平,温雅丽. 热应激对奶牛生产的影响及应对策略[J]. 畜牧与饲料科学,2011(9):59-62.
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