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All Journal Jurnal Biologi Tropis
Tapaul Rozi
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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Effect of Maintenance Distance from Cooling Pad Against Average Increase Body Weight of Broiler Chickens in Closed House Cages Irham Hafiz Mandiling; Tapaul Rozi; I Ketut Gede Wiryawan
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.5712

Abstract

Broiler chickens are good genetic quality as seen from their fairly fast growth. An intensive and controlled cage system can be found in the closed house cage system. Based on the research, the average weight of harvested chickens is not uneven, possibly unequal distribution of fresh air entering through the inlet. This research aims to determine the effect of maintenance distance from the cooling pad on the average body weight growth of broiler chickens kept in closed house cages with a size of 98 X 14 m. as many as 16,000 broiler chickens of the CP 207 strain are randomly allocated into 4 groups or flocks. The distance of flocks 1, 2, 3 and 4 from the cooling pad is 0 -24.5, 24.6 - 49.5 and 49.6 - 73.5, and 73.6 - 98m respectively. The results showed a marked difference (P<0.05) in final body weight. The highest body weight was obtained at the closest distance to the cooling pad and the lowest weight was obtained in the chicken that was in the flock farthest from the cooolig pad. It was concluded that the chicken's body weight is lower the farther the flock is from the cooling pad.
Identification of Qualitative and Quantitative Characteristics of Male Bali Cattle in Dompu District Gita Nabilla Islami; Lalu Muhammad Kasip; Tapaul Rozi
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.5903

Abstract

Livestock identification is a form of recording that must be done to provide information about individual livestock. This study aimed to identify the qualitative and quantitative characteristics of male bali cattle in Dompu Regency. Data analysis was carried out using statistics descriptive, using the average, standard deviation, and coefficient of variation. One hundred twenty male bali cattle aged 1-36 months were used as samples. The results showed the frequency of each feature was 47.5% light brown fur color, 32.5% dark brown, and 20% black. The eel line was 40% thick line, 15% medium line, 25% thin line, and 20% did not have eel line. The metatarsal color was 87.5% white with a firm border and 12.5% white with an indistinct border. The rump color was 82.5% white with a firm boundary and 17.5% white with an indistinct boundary. The tail feather color was 37.5% black-brown, 32.5% brown, and 30% black. Furthermore, the measurement results obtained for quantitative properties were 113.8 ± 10.0 for body length, with a 8.8% coefficient of variation. Chest circumference were 147.2 ± 11.8, with a 8.0% coefficient of variation. Back height were 112.0 ± 7.9, with a 7.1% coefficient of variation. Hip height were 115.8 ± 8.4, with a 7.2% coefficient of variation. Body weight were 287.6 ± 40.1, with a 14.0% coefficient of variation. The study results show that the male bali cattle characteristics at Dompu Regency are relatively heterogenous, both qualitatively and quantitatively.
Co-Authors Gita Nabilla Islami I Ketut Gede Wiryawan Irham Hafiz Mandiling Lalu Muhammad Kasip