논문 상세보기
pp.279-287
본 연구는 젖소에 있어서 분만후 난소 활동의 재개 및 분만후 40일째 BCS가 (PPC) program 적용에 미치는 영향을 구명하기 위하여 2002년부터 2003년까지 2년간에 걸쳐 축산연구소 및 천안 소재 전문 경영체 젖소농 장에서 사육중인 홀스타인 착유우를 대상으로 분만 후 난소 활동의 재개를 조사하기 위한 착유우21두 및 분만후 40일째 BCS가 PPC program 적용에 미치는 영향을 구명하기 위한 착유우 40두를 공시하여 수행한 결과 다음과
This study was carried out to investigate resumption of ovarian cyclicity and effect of BCS on estrous response by treatment of program on day 40 postpartum in lactating dairy cow. First was given on day 40 postpartum, second was given 14 days apart to cows not-responded to 1st and then CIDR was inserted for 7 days after 5 days in cows not-responded to 2nd . The of the cows showed more than 1 ng/mL milk progesterone concentration within 10 to 30 days postpartum. About of the cows exhibited more than 1 ng/mL milk pro-gesterone concentration between 31 to 50 days postpartum. However of the cows have not shown more than 1 ng/mL milk progesterone up to 50 days postpartum. Estrous response to the treatment of 1 st and 2nd was and , respectively. Combination of 1 st and 2nd was and combination of 1st +2nd +CIDR was . Estrous response to the treatment of program was in cows with less than 2.50 BCS and in cows with 2.753.50 BCS. Estrous response to the treatment of CIDR was in cows with less than 2.50 BCS and in cows with 2.753.50 BCS. Estrous response to the treatment of PPC on day 40 postpartum was in cows with less than 2.50 BCS and in cows with 2.753.50 BCS.
