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All Journal Journal of the Indonesian Tropical Animal Agriculture Tropical Animal Science Journal
N. Pratiwi, N.
Graduate School of Animal Science, Bogor Agricultural University, Jl. Agatis, Darmaga Campus, Bogor 16680
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy

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NOVEL SNP OF CALPAIN-1 (CAPN1) GENE AND ITS ASSOCIATION WITH CARCASS AND MEAT CHARACTERISTICS TRAITS IN BALI CATTLE Pratiwi, N.; Maskur, M.; Priyanto, R.; Jakaria, J.
Journal of the Indonesian Tropical Animal Agriculture Vol 41, No 3 (2016): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.41.3.109-116

Abstract

Calpain-1 gene (CAPN1) produces an calpain enzyme controlling structure of meat protein and tenderness. The aims of this study were to identify Single Nucleotide Polymorphism (SNP) in exon 5 and 6 of CAPN1 gene and its associate with carcass and meat characteristic traits in bali cattle. A total of 48 bali cattles from BPTU-HMT Bali Cattle, Bali Province were used in the research. SNP in exon 5 and 6 of CAPN1 gene were identify with direct sequencing using MEGA 5 program. Analysis of polymorphism was conducted by PopGen 1.32 software to identify frequencies of genotype, allele and Hardy-Weinberg equilibrium. The association of CAPN1 gene genotype with carcass and meat characteristic traits was analyzed using Generalized Linear Model (GLM) procedure of SAS. Sequencing analysis at exon 5-6 of CAPN1 gene in Bali cattle resulted in eight polymorphic SNPs. They are c.3669T>C, c.3854G>A, c.3881T>C, c.3899C>T, c.3908C>G, c.4002C>A, c.4021G>T and c.4037A>C. The SNPs c.3669T>C, c.3854G>A and c.3899C>T were significantly (P<0.05) associated with rump thickness (RT), rump fat thickness (RFT) and marbling score (MS), while SNP c.4037A>C was not significantly associated with carcass and meat characteristic traits. The SNPs were significantly associated with carcass and meat characteristic traits namely c.3669T>C, c.3854G>A and c.3899C>T. Those SNPs may be used as candidate marker for Marker Assisted Selection (MAS) in bali cattle.  
The Resilience of Smallholder Layer-Chicken Farmers Throughout the COVID-19 Pandemic: Evidence from Indonesia Priyono; Kusumaningrum, D. A.; Rusdiana, S.; Praharani, L.; Widiawati, Y.; Kostaman, T.; Herliatika, A.; Pratiwi, N.; Azizah, N.; Iji, P. A.
Tropical Animal Science Journal Vol. 47 No. 3 (2024): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2024.47.3.392

Abstract

Smallholder layer-chicken farming in Indonesia is essential to ensure national food production, food security, and economic resilience. During the COVID-19 pandemic, small-scale layer-chicken farming exhibited adaptability. This study aims to assess the smallholder layer-chicken farmers resilience in Indonesia during the challenges posed by the COVID-19 pandemic. This research employed cross-sectional data collected from February to July 2023 from 114 smallholder layer chicken farmers in West Java, Central Java, and East Java using a purposive sampling technique. Data analysis used descriptive statistics, financial analysis, and the Wilcoxon Signed Rank Test. The results showed that the COVID-19 pandemic impacted the decline in the population and production of layer-chicken at the beginning of the COVID-19 pandemic but subsequently demonstrated an increase afterward. Financial analyses showed an increase in operational costs, specifically feed and labor, during the COVID-19 pandemic. The layer-chicken farms could adapt and maintain profitability amidst increasing operational costs. The findings showed that the COVID-19 pandemic significantly impacted increasing feed costs (p<0.05) and labor costs (p<0.05). The revenue-cost ratio remained relatively stable. The study also showed significant differences in profit levels before, during, and after the COVID-19 pandemic (p<0.05). Profit levels decreased during the beginning of the COVID-19 pandemic and recovered afterward, showcasing the smallholder layer chicken farmer’s resilience during the COVID-19 pandemic. These findings offer valuable insights for policy formulation aimed at fortifying the resilience demonstrated by smallholder layer-chicken farming in Indonesia amidst the challenges posed by the COVID-19 pandemic and other potential crises in the future.
Co-Authors Azizah, N. Herliatika, A. Iji, P. A. Jakaria Jakaria KOSTAMAN, T. Kusumaningrum, D. A. L. Praharani Maskur Maskur Priyono R. Priyanto S. Rusdiana Y. Widiawati