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All Journal Jurnal Medik Veteriner Jurnal sains dan teknologi industri peternakan
Adhyatma, Muhammad
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Social Sciences Veterinary

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Evaluation of Dairy Cow Milk Production Based on Temperature Humidity Index (THI) Adhyatma, Muhammad; Ahmad, Yanuar; Kusuma, Satria Budi; Permadi, Herlina Irawati; Fajrin, Eistifani
Jurnal Sains dan Teknologi Industri Peternakan Vol 4 No 1 (2024): Februari 2024
Publisher : Program Studi Peternakan Universitas Muhammadiyah Sidenreng Rappang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55678/jstip.v4i1.1368

Abstract

This study aims to assess the impact of environmental temperature on the milk production of PFH dairy cows. The research site is located at an altitude of 187 meters above sea level, indicating relatively high levels of temperature and humidity. The average temperatures range between 23-30°C and the humidity levels range between 63-86%. Both elevated temperature and humidity can have an influence on milk production. The findings of this study indicate that the barn's Temperature-Humidity Index (THI) falls within the mild stress category. The milk production results for PFH dairy cows ranged from 3-6 liters per head per day in the morning, and 1.5-3 liters per head per day in the afternoon. However, it should be noted that this production level is still below the genetic standards. Other factors such as feed, management practices, and animal health also play a role in milk production. Regression analysis suggests a correlation between environmental temperature (THI) and milk production, although this correlation is not statistically significant. This lack of statistical significance may be attributed to the influence of various other factors on milk production, such as feed type and management practices. Therefore, in order to enhance the milk production of PFH dairy cows, it is necessary to develop a more comprehensive understanding of these contributing factors.
Exploring the Relationship Between Growth Hormone Secretagogue Receptor (GHSR) Gene and Body Proportions in Bangkok Chickens: Insights from DNA Sequencing and Hin6I Enzyme-Restricted PCR-RFLP Analysis Syaikhullah, Gayuh; Hertamawati, Rosa Tri; Adhyatma, Muhammad
Jurnal Medik Veteriner Vol. 7 No. 1 (2024): April
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmv.vol7.iss1.2024.68-75

Abstract

The purpose of this study was to determine the diversity of the growth hormone secretagogue receptor (GHSR) gene and also to analyze the association of the GHSR gene with the body proportions of Bangkok chickens. A total of 125 Bangkok chickens were reared, and blood samples were taken. Bangkok chickens were kept in colony cages with ad libitum feeding and drinking. The GHSR gene polymorphism was determined using the PCR-RFLP method. The restriction enzyme used in this study was Hin6I. The data analyzed were indicators of body proportions, which included data on body weight, carcass weight, and commercial cut weight. Single nucleotide polymorphism (SNP) identification using the Molecular Evolutionary Genetics Analysis 7 program with reference number AB095994.1. Allele frequency values, genotype frequencies, and Hardy-Weinberg balance values were also analyzed. The association between the GHSR gene and the traits observed in Bangkok chickens was analyzed using the T-test. The results of the study showed that the GHSR gene in Bangkok chickens had two genotypes, namely TT and CT. The values for Ho and He were 0.224 and 0.198, respectively. The genotype frequencies of TT and CT were 0.776 and 0.224, respectively. The two genotypes were associated with body weight, carcass weight, and commercial weight (p < 0.05). For all measured criteria, the TT genotype showed a higher weight value than the CT genotype. The GHSR gene has the potential to be used as a genetic marker for the selection process on body weight, carcass weight, and commercial weight traits.
Co-Authors Ahmad, Yanuar Fajrin, Eistifani Hertamawati, Rosa Tri Kusuma, Satria Budi Permadi, Herlina Irawati Syaikhullah, Gayuh