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《Journal of Northwest Sci-Tech University of Agriculture and Forestry》 1989-01
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THE OVARIAN ACTIVITY AND OVARIAN CYSTS IN POST-PARTUM DAIRY COWS

Zhang Yanming (Department o/ Veterinary Medicine)  
Ovarian activity and the frequency of oyarian cysts in 28 post-partum dairy cows were studied using RIA to measure plasma progesterone concentrations in combination with rectal palpation. The results showed that ovarian cyclic activity in 27 dairy cows started 23.63 ± 7.74 days after partum, ex-"ccpt for one cow that did not resume cyclic ovarian activity, of which only 8 cows (28.57%) had estrous sign during the first ovarian activity whose"'2 - 5th ovarian cyclic activity occured on 45.67±8.92 , 66.54±8.85 ; 88.37 ±11.71 and 109.00±18.32 days after parturition respectively. There were only 60.71% of 28 cows had their first estrus within 60 days after partum. The frequency of ayarian cysts was 39.29%,including follicular cysts (8.93); luteal cysts (16.07%) and cystic corpora lutea (14.29%) .
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 Yuan Wei, Qin Zhiqing, Xu Liren and Pu Ruiyu(Section of Veterinary Surgery, Nanjing Agricultural University)Dai Xing ting, Xu Kuiwu and Luo Jinzhu(Experimental Stock Farm, Nanjing Agricultural University);CHANGES OF PLASMA PROGESTERONE CONCENTRATION IN POSTPAPTUM PERIOD OF DAIRY CATTLE[J];Journal of Nanjing Agricultural University;1985-03
【Co-citations】
Chinese Journal Full-text Database 1 Hits
1 Huang Yongming Wei Yuanzhong He Yanwu Chen Genzheng Wang Zhenxi Jiang Shou Gao Yonghe Wan Yihe An Yongxiang;Analysis of Reproductive Hormones in Dairy Cow V.Profile of 17β—Oestradiol in the Peripheral Blood Plasma During Oestrous Cycle and Pregnancy[J];Journal of Gansu Agricultural University;1987-02
【Secondary References】
Chinese Journal Full-text Database 2 Hits
1 SANG Run-zi(College of Animal Science and Technology, Hebei Agricultural University, Hebei Baoding 071001, China);Application of GnRH and Its Analogs on Animal Reproduction[J];Chinese Journal of Animal Science;2004-11
2 SANG Run-zi(College of Animal Science and Technology, Hebei Agricultural University, Hebei Baoding 071001, China);Application of GnRH and its Anologue to Animal Reproduction[J];Chinese Journal of Animal Science;2005-04
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 Yuan Wei;CHANGES OF 17β-ESTRADIOL AND PROGESTERONE AND TESTOSTERONE IN PLASMA OF GUANZHONG DONKEYS BOTH IN THE POSTPARTUM PERIOD AND DURING THE ESTROUS[J];Chinese Journal of Animal and Veterinary Sciences;1984-01
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