Analysis of B-ultrasound Luteal Variation Related Indicators of Delayed Ovulation Dairy Cows after Estrus at Different Stages |
| |
Authors: | LIU Xian-xia WANG Han-kui WANG Shu-jie WANG Hai-bin GU Xin-li |
| |
Institution: | 1. College of Animal Science and Technology, Shihezi University, Shihezi 832003, China;2. Xinjiang Western Animal Husbandry Stock Co., Ltd., Shihezi 832000, China |
| |
Abstract: | The study was aimed to observe the variation and differences of corpus luteum of delayed ovulation cows after estrus.Based on the observation of clinical symptoms, rectal examination and diagnosis of B-ultrasound scanning, 8 delayed ovulation dairy cows with the variation (delayed ovulation group) and 5 healthy and normal dairy cows with estrus (control group) were selected, and the related indicators of the corpus luteum (diameter, area, perimeter and volume) were measured by B-ultrasound scanning.These luteal indicators were compared and analyzed further, and the luteal typical sonography obtained of the different stages were described.The results showed that the diameter, area, perimeter and volume during 7 to 15 d after estrus of the corpus luteum had no significant differences between delayed ovulation group and control group (P>0.05).However, on the 9th and 13th day after estrus, the luteal relevant indicators of delayed ovulation group cows (diameter, volume, area and perimeter) were greater than that of control group cows and less than normal dairy cows on the 11th day.There were no significant differences in diameter, area, circumference and volume of corpus luteum at the different stages after estrus between the delayed ovulation dairy cows and the normal ones. |
| |
Keywords: | delayed ovulation dairy cows B-ultrasound corpus luteum index |
|
| 点击此处可从《中国畜牧兽医》浏览原始摘要信息 |
| 点击此处可从《中国畜牧兽医》下载免费的PDF全文 |
|