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The frequency of A allele was 75% and G allel was 25%. The frequencies of AA, AG, and GG genotypes were 58 %, 34%, and 8% respectively. Tujuan penelitian ini adalah untuk mengetahui pola pertumbuhan, tingkat pubertas, pola pemberian pakan dan menduga pertumbuhan dengan model Gompertz sapi pedet dan dara pada kondisi iklim lingkungan pemeliharaan yang berbeda. Genotyping of GHR gene with Alu1 restriction enzymes produced three genotypes and two alleles. The frequency of L allele was 94 % and V allele was 6%. Genotyping the GH gene with Alu1 restriction enzyme to all DNA samples produced two variant genotypes, i.e LL (89 %) and LV (11%) genotypes. Daging sapi yang direndam dengan menggunakan -pinene dan minyak pala serta disimpan selama 7 hari, dapat menekan pertumbuhan Salmonella sp menjadi negatif.
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A total of 370 HF cattle from six populations of Institute for breeding of dairy cattle Cikole station (88 samples), Pasir Kemis (96 samples), Cilumber (98 samples), Lembang Artificial Insemination Center (LAIC) (17 samples), Livestock Embryo Transfer Center (40 samples) and Singosari Artificial Insemination Center (SAIC) (32 samples) were genotyped by the Polymerase Chain Reaction and Restriction Fragment Length Polymorphism (PCR-RFLP) methods. The purpose of this study was to identify genetic polymorphism of the Growth Hormone (GH) and the Growth Hormone Receptor (GHR) genes, and the association of their genetic variants with milk yield in Holstein Friesian (HF) cattle. Growth Hormone (GH) and Growth Hormone Receptor (GHR) genes have been suggested as candidate genes for traits related to milk production. Growth hormone gene has a critical role in the regulation of lactation, mammary gland development and growth process through its interaction with its specific receptor.