Asian-Australasian Journal of Animal Sciences

  • 제26권7호
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  • Pages.930-934
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  • 2013
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  • 1011-2367(pISSN)
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  • 1976-5517(eISSN)
아세아태평양축산학회 (Asian Australasian Association of Animal Production Societies)
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Maternal Effects of Japanese Shorthorn Cows on the Growth of Embryo-transferred Japanese Black Calves in a Cow-calf Grazing System

  • Yamaguchi, Manabu (Livestock and Forage Research Division, Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO)) ;
  • Ikeda, Kentaro (Livestock and Forage Research Division, Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO)) ;
  • Takenouchi, Naoki (Livestock and Forage Research Division, Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO)) ;
  • Higashiyama, Masakazu (Livestock and Forage Research Division, Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO)) ;
  • Watanabe, Akira (Livestock and Forage Research Division, Tohoku Agricultural Research Center, National Agriculture and Food Research Organization (NARO))
  • 투고 : 2013.01.15
  • 심사 : 2013.03.07
  • 발행 : 2013.07.01
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초록

The growth performance of embryo-transferred Japanese Black calves that were born from, and suckled by, Japanese Shorthorn cows in a cow-calf grazing system (BS-group, n = 5) was compared to that of Japanese Black calves from Japanese Black cows in a cowshed (BB-group, n = 5). The daily weight gain from birth to 1 month was higher in the BS-group than in the BB-group (p<0.01), and the same trend (p<0.05) was observed at 2 and 3 months of age. This resulted in body weight that was significantly higher for the BS-group between 1 and 3 months of age than what was observed for the BB-group (p<0.05). Heart girth was significantly greater in the BS-group than in the BB-group throughout the experimental period (p<0.01), and chest depth and withers height in the BS-group were significantly greater from 2 to 4 months of age (p<0.05) and at 4 months of age only (p<0.05). No difference in body length (p>0.05) was observed between the groups. These results suggest that the maternal effect of Japanese Shorthorn cows was positive for embryo-transferred Japanese Black calf growth during the early suckling stage. As Japanese Black calves are traded at a high price on the Japanese market, we conclude that this proposed production system is likely to improve the profitability of herd management in upland Japan.

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참고문헌

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  3. The rare mtDNA haplogroup P observed in Japanese Holstein cattle vol.46, pp.2, 2013, https://doi.org/10.5924/abgri.46.49
  4. Comparison on the Growth Characteristics between Calves of Two Different Japanese Beef Breeds Suckled by Japanese Shorthorn Dams vol.54, pp.1, 2020, https://doi.org/10.6090/jarq.54.93
  5. Evaluation of inbreeding and genetic diversity in Japanese Shorthorn cattle by pedigree analysis vol.92, pp.1, 2013, https://doi.org/10.1111/asj.13643