Breed differences in growth hormone and insulin secretion between lactating Japanese Black cows (beef type) and Holstein cows (dairy type).

@article{Shingu2002BreedDI,
  title={Breed differences in growth hormone and insulin secretion between lactating Japanese Black cows (beef type) and Holstein cows (dairy type).},
  author={Hiroyuki Shingu and Koichi Hodate and Shiro Kushibiki and Yasuko Ueda and Akira Watanabe and Mitsuru Shinoda and Mitsuto Matsumoto},
  journal={Comparative biochemistry and physiology. Toxicology & pharmacology : CBP},
  year={2002},
  volume={132 4},
  pages={493-504}
}
This study was performed to clarify the levels of growth hormone (GH) and insulin (INS) secretions and the glucose response to INS during lactation in a representative beef breed in Japan, Japanese Black cows, and to compare them with their counterparts in a dairy breed, Holstein cows. Six Japanese Black and seven Holstein primiparous cows received a single intravenous injection of GH-releasing factor (GRF; 0.25 microg/kg), glucose (112.5 mg/kg), or INS (0.2 U/kg) from late pregnancy (2 weeks… CONTINUE READING

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