Prepubertal growth and single nucleotide polymorphism analysis of the growth hormone gene of low birth weight Holstein calves
2018
Ro, Y., Seoul National University, Seoul, Republic of Korea | Choi, W., Seoul National University, Seoul, Republic of Korea | Kim, H., Seoul National University, Pyeongchang, Republic of Korea | Jang, H., National Agricultural Cooperative Federation, Goyang, Republic of Korea | Lee, H., Hyun-ri Animal Clinic, Gapyeong, Republic of Korea | Lee, Y., Hankyong National University, Anseong, Republic of Korea | Kim, D., Seoul National University, Seoul, Republic of Korea
Holstein calves weighing less than 20 kg at birth have been noted in Korea. Due to insufficient information, we raised small calves with age-matched normal birth weight Holstein calves and determined body weights before puberty. In addition, 3 single nucleotide polymorphisms (SNPs) of the growth hormone (GH) gene were analyzed. Up to 10 months of age, low birth weight calves were smaller than normal weight calves. In exon 5 of the GH gene, SNP genotype variation was detected in some small calves; however, this did not appear to be the only factor inducing low birth weight and slow growth.
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