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청보리 사일리지 급여가 Holstein 젖소 미경산우의 번식 성적에 미치는 영향

Effects of Feeding of Whole Crop Barley Silage on the Reproductive Performances of Holstein Heifers

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  • URLhttps://db.koreascholar.com/Article/Detail/163421
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한국동물번식학회 (The Korean Society of Animal Reproduction)
초록

This study was carried out between 2008 and 2009 in four dairy farms to investigate the effect of feeding of whole crop barley silage on the reproductive performance of Holstein heifers. Two diets, mixed hay or whole crop barley silage separately from concentrate were fed 6-month old Holstein heifers (=37). In control group (=CON), heifers (n=16) were fed 6 kg (/head) mixed hay and 4 kg (/head) commercial diet. In whole crop barley silage group (=WBS), heifers (n=21) were fed 10 kg (/head) whole crop barley silage, 4 kg (/head) mixed hay and 2 kg (/head) commercial diet. To manage body weight gain, the body condition score of heifers were measured every month. The results obtained were as follows: 1. Body weight in CON and WBS heifers at 13-, 14-, 15- and 17-month old were 340±17.9 and 342±13.6 kg, 356±15.7 and 366±14.7 kg, 382±13.1 and 387±14.4 kg, and 429±15.0 and 417±10.3 kg, respectively. 2. Body condition score in CON and WBS heifers at 9-, 12-, 15- and 17-month old were 2.88±0.04 and 2.80±0.04, 2.88±0.04 and 2.80±0.04, 2.89±0.08 and 3.00±0.07, and 2.89±0.08 and 3.00±0.07, respectively. 3. Average age of sexual maturity in CON and WBS heifers were 437.3±9.9days and 939.6±12.5days, WBS group heifers were significantly shorter (p<0.05) than CON group heifers. 4. First-service conception rates in CON or WBS group were 81.3% (13/16) and 66.7% (14/21), respectively, and cumulative conception rate to 2nd artificial insemination were 87.5% for CON and 85.7% for WBS group. Conception rate was not different between treatments

목차
ABSTRACT   서론   재료 및 방법    공시동물    사료급여    체중측정    발정 관찰 및 인공수정    체혈 및 호르몬 분석    성성숙 일령 분석    번식 성적 조사    BCS 측정    통계처리   결과   고찰   인용문헌
저자
  • 백광수(농촌진흥청 국립축산과학원) | Kwang-Soo Baek Corresponding author
  • 김원호(농촌진흥청 국립축산과학원) | Won-Ho Kim
  • 박성재(농촌진흥청 국립축산과학원) | Seong-Jai Park
  • 이왕식(농촌진흥청 국립축산과학원) | Wang-Shik Lee
  • 전병순(농촌진흥청 국립축산과학원) | Byeong-Soon Jeon
  • 임현주(농촌진흥청 국립축산과학원) | yun-Joo Lim
  • 김현섭(농촌진흥청 국립축산과학원) | Hyeon-Shup Kim
  • 장원경(농촌진흥청 국립축산과학원) | Won-Kyong Chang
  • 국길(전남대학교 동물자원학부) | Kil Kook
  • 장기영(전남대학교 동물자원학부) | Ki-Young Jang
  • 이병철(영광군농업기술센터) | Byung-Chul Lee
  • 김광현(전남대학교 동물자원학부) | Kwang-Hyun Kim