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KMID : 1023620100340030213
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Reproductive and Developmental Biology
2010 Volume.34 No. 3 p.213 ~ p.216
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Effects of Feeding of Sudangrass silage on the Reproductive Characteristics of Hanwoo Cows
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Jang Ki-Young
Moon Seung-Ju
Kook Kil
Baek Kwang-Soo
Lee Wang-Sik
Kim Won-Ho
Kim Kwang-Hyun
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Abstract
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s study was carried out between November 2008 and October 2009 in the experimental farm of Chunnam National University to investigate the effect of feeding of Sudangrass silage on the reproductive performance of Hanwoo cows. Two diets, rice straw or Sudangrass silage separately from concentrate were fed 19 Hanwoo cows. In control group (=CON), cows (n=9) were fed 5 kg (/head) rice straw and 3 kg (/head) commercial diet. In Sudangrass silage group (=SGS), cows (n=10) were fed 12.5 kg (/head) Sudangrass silage and 1 kg (/head) commercial diet. 1. Days to post-partum insemination were 78.8±25.3 days for CON and 84.7±24.6 days for SGS group and days to post-partum conception in CON or SGS were 90.1±24.1 and 87.7±26.8 days, respectively. 2. Post-partum conception rates for first service in CON or SGS was 66.7% and 90.0%, respectively, and caving interval was 375.1±46.7 days for CON and 370.2±34.4 days for SGS group. 3. Body Condition Scores of Hanwoo cows at artificial insemination was 5.36 for CON group and 4.93 for SGS group.
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KEYWORD
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Hanwoo cow, Sudangrass silage, Reproductive performance
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