| The relationship between milk composition and conditions of ovary and uterus with reproductive fresh check in early lactating cows |
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Jin-San Moon1, Chong-Bong Shin2, Chang-Ho Son3, Yi-Seok Joo1, Hyun-Mi Kang1, Jong-Man Kim1 |
1National Veterinary Research and Quarantine Service
2Shin's VET. Clinic
3College of Veterinary Medicine, Chonnam National University |
| 분만 후 첫 번째 번식검진시 난소 및 자궁 질환에 따른 유성분 수준 비교 |
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문진산1, 신종봉2, 손창호3, 주이석1, 강현미1, 김종만1 |
1국립수의과학검역원
2신동물병원
3전남대학교 수의과대학 |
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| Abstract |
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The relationship between level of milk composition and conditions of ovary and uterus were analyzed in Holstein cows at seven farms participating in a reproductive herd health management program. Milk data were taken from 503 early lactating cows between 30 and 60 days in milk with reproductive examination with ultrasonography from september 1999 to August 2000. Milk fat, protein and solid-not-fat concentration in the herds were $3.70{pm}1.08%$, $2.97{pm}0.35$, and $8.41{pm}0.61%$, respectively. The reproductive disorder relative to normal cows had higher risk in the cows that the level of protein was lower than 2.70%. Also, the higher milk fat than 4.50% were associated with a higher risks in the uterine disease and follicular cysts. Therefore, the cows with the fat to protein ratio of > 1.30 had higher risks for reproductive disorder such as cystic ovarian diseases, inactive ovaries and endometritis. These results indicated that cows diagnosed with reproductive disorder were energy deficient prior to reproductive disorder diagnosis. Consequently, milk fat and protein analyses may be used serve as a monitoring tool for condition of ovary and uterus in early lactating cows |
| Key Words:
Cow, Milk composition, Reproductive disorder |
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