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All Journal Jurnal Sains Peternakan Jurnal Sain Peternakan Indonesia Tropical Animal Science Journal JMM (Jurnal Masyarakat Mandiri) Jurnal Peternakan (Jurnal of Animal Science) Jurnal Kridatama Sains dan Teknologi Journal of Tropical Animal Science and Technology Jurnal Nukleus Peternakan DEDIKASI PKM
Adyanto Nessy Banamtuan
Program Studi Peternakan, Fakultas Peternakan, Kelautan Dan Perikanan, Universitas Nusa Cendana
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Social Sciences Veterinary Other

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Journal : Journal of Tropical Animal Science and Technology

 1 
Correlation Between Chest Girth, Body Length, and Body Height on Wither Weight of Rote Sheep Ewes Setyani, Ni Made Paramita; Nalley, Wilmientje Marlene; Hine, Thomas Mata; Riwu, Agustinus Ridlof; Uly, Kirenius; Kune, Petrus; Bette, Yustiany Yuliana; Lawa, Alvrado Bire; Mulik, Simon Edison; Banamtuan, Adyanto Nessy; Riwu, Roni Markus Jami; Zulfa, Yanna Nailla; Listyadi, Rut
Journal of Tropical Animal Science and Technology Vol. 8 No. 1 (2026): Journal of Tropical Animal Science and Technology
Publisher : Animal Husbandry Study Program, Faculty of Agriculture, Timor University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jtast.v8i1.10617

Abstract

This study aimed to analyze the relationship between linear body measurements including chest girth (CG), body length (BL), and wither height (WH) and body weight (BW) in Rote sheep ewes across different age groups to determine the most reliable predictor of body weight. The research employed a quantitative method through direct field measurements and weighing. Data collected including vital statistics (CG, BL, WH) and BW from Rote sheep ewes categorized into three age groups (I0, I2, and I4). The data were analyzed statistically using correlation coefficient (r), the coefficient of determination (R²), and bias analysis to evaluate the accuracy of weight estimation. The results revealed that chest girth exhibited the highest correlation with body weight, particularly in the I0 group (r = 0.93; R² = 86.05%), indicating a strong positive relationship and high predictive accuracy. Body length showed a moderate relationship (r = 0.87; R² = 76.11%) in the same group, while wither height demonstrated a relatively weaker correlation (r = 0.73; R² = 53.94%). Across all age groups, the predictive strength of body measurements decreased with increasing age, suggesting that skeletal growth contributes less to body weight variation in mature sheep. In conclusion, chest girth was identified as the most accurate and reliable linear measurement for predicting body weight in Rote sheep ewes, particularly in younger age groups, and can therefore be used as a practical and non-invasive tool for estimating livestock weight.
Agricultural Waste Processing Technologies (Silage and Ammoniation) for Ruminant Feed in Drylands: Literature Review Mafefa, Nitty Cendrabagusti; Banamtuan, Adyanto Nessy
Journal of Tropical Animal Science and Technology Vol. 8 No. 1 (2026): Journal of Tropical Animal Science and Technology
Publisher : Animal Husbandry Study Program, Faculty of Agriculture, Timor University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jtast.v8i1.10645

Abstract

Dryland regions commonly experience ruminant feed shortages during the dry season. The year‑round availability of high‑quality feed is a critical prerequisite for sustainable livestock development. Livestock productivity can be improved through the consistent provision of nutritionally adequate feed resources. This opportunity is supported by abundant agricultural production, particularly maize, which has not yet been optimally utilized for livestock feeding. However, most existing feed resources are characterized by low nutritional value and therefore cannot adequately support animal productivity without further processing. Agricultural residues such as rice straw and corn stover are available in large quantities but require technological intervention to improve their feeding value. Processing technologies based on silage and ammoniation have been widely reported to enhance nutrient availability and extend the storage life of these materials. This review synthesizes published research on the potential of agricultural residues as ruminant feed resources in dryland ecosystems and evaluates the effectiveness of silage and ammoniation technologies. The evidence indicates that both technologies substantially improve feed quality, increase feed availability during the dry season, and strengthen farmers’ capacity to utilize local resources in a sustainable livestock production system.
Co-Authors Alberth Nugrahadi Ndun Dalle, N. S. David Agustinus Nguru Diana Meliani Sabat Eliazar Nifu, Salden Geertruida Margareth Sipahelut Gemini Ermiani Mercurina Malelak Kune , P. Lawa , A. B. Lawa, Alvrado B. Lawa, Alvrado Bire Listyadi, Rut Mafefa, Nitty Cendrabagusti Morin Mediviani Sol'uf Mozes, Yusuf Mulik, Simon E. Nguru, David A. Ni Made Paramita Setyani Nifu, Salden E. Padu, Hendrikus U. Petrus Kune Riwu , R. M. J. Riwu, Agustinus Ridlof Riwu, Roni Markus Jami Setyani , N. M. P. Setyani, Ni M. P. Setyani, Ni Made P. Simon Edison Mulik Sol’uf, Morin M. Thomas Mata Hine Uly , K. Uly, Kirenius Umbu Padu, Hendrikus W. M. Nalley Wilmientje Marlene Nalley, Wilmientje Marlene Yustiani Yuliana Bette Zulfa, Yanna Nailla