Weight estimation accuracy of certificated garut ewes by using novel formula, schoorl formula, and winter arjodarmoko formula

Jois Harsa, Denie Heriyadi, Diky Ramdani

Abstract


The body weight (BW, in kg) of sheep can be estimated by measuring the body length (BL, in cm) and chest circumference (CC, in cm). The study aimed to conduct anovel formula to predict BW of Garut ewesbased onits BL and Chest Circumference CC. The accuracy of the novel formula is then comparedto the commonly used Schrool and Winter Arjodarmoko formulas. The materials of the study weretaken from the1 to 7 certified data of adult Garut ewes with a total of 118 heads from three different regions: Bandung (73 ewes), Sumedang (22 ewes) and Garut (23 ewes). The observed variables were Body Weight (BW), Body Length(BL), and Chest Circumference (CC). The data showed that the average adultGarut ewesBW was at 44.05 ± 10.65 kg, BL at 62.35 ± 5.34 kg, and CCat 83.89 ± 6.25 kg. The novel formularegressionanalaysis for BW estimationwas (-91.1+ 0.575 (BL) + 1.18 (CC) with R2 = 81.0%. Moreover, BL and CC showed highly significant correlation (P<0,001) with the BW. The novel formula calculation showed the averageBW was 42.74 kg (-0.32 kg deviation), while the Schrool formula showed the average BW was 44.47 kg (+0.42 kg deviation), and Winter Arjodarmoko was 44.48 kg (+0.43 kg deviation). The reseach concludes that the novel formula for Garut ewesBW estimation had the smallest deviation compared to Schoorl and Winter Arjodarmoko formulas.


Keywords


Garut ewe; Body weight; Body length; Chest circumference

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References


Amirudin, O., Malewa, D., & Salmin, D. (2008). Karakteristik domba lokal Palu berdasarkan keragaman morfometrik. J. Agroland (Vol. 15).

Badan Standardisasi Nasional. (2015). Bibit Domba Garut (1st ed.). Jakarta.

Basbeth, A. H., Dilaga, I. W. S., & Purnomoadi, A. (2015). The Correlation between body measurements and body weight of young male Jawarandu goats of Kendal Distric, Central Java. Animal Agriculture Journal, 4(1), 35–40.

Gunawan, A., Jamal, K., & Sumantri, C. (2008). Pendugaan bobot badan melalui analisis morfometrik dengan pendekatan regresi terbaik best - subset pada domba garut tipe pedaging, tangkas dan persilangannya. Majalah Ilmiah PeternakanKAN, 11(1), 1–6.

Gunawan, A., & Noor, R. (2006). Pendugaan nilai heritabilitas bobot lahir dan bobot sapih domba Garut tipe laga. Media Peternakan, 29(1), 7–15.

Gunawan, A., & Sumantri, C. (2008). Estimation of phenotypic variation value and genetic distance in Garut sheep and crossbred of Garut. Journal of the Indonesian Tropical Animal Agriculture, 33(3), 176–185.

Heriyadi, D. (2005). Identifikasi sifat-sifat kualitatif domba Garut jantan tipe tangkas. Jurnal Ilmu Ternak, 5(2), 47–52.

Heriyadi, D., & Mayasari, N. (2006). The body measurement of Garut ram and prospective resource regions in Bandung regencies. Jurnal Ilmu Ternak Universitas Padjadjaran, 6(1), 57–62. https://doi.org/10.24198/JIT.V6I1.2268

Heriyadi, D., Sarwesti, A., & Nurachma, S. (2012). Sifat-sifat kuantitatif sumber daya genetik domba Garut jantan tipe tangkas di Jawa Barat. Bionatura, 14(2), 101–106. Retrieved from http://jurnal.unpad.ac.id/bionatura/article/view/7621

Inounu, I., Mauluddin, D., & Subandriyo. (2007). Karakteristik pertumbuhan domba garut dan persilangannya. Jurnal Ilmu Ternak Dan Veteriner, 13(1), 13–22. https://doi.org/10.24198/jit.v6i1.2268

Kementan. (2011). Keputusan Mentri Pertanian no 2914/Kpts/OT.140/6/2011 tentang penetapan rumpun Domba Garut. Jakarta.

Malewa, A. (2009). Estimation of Donggala Sheep Body Weight Based on Their Chest Diameter and Body Length. J. Agroland (Vol. 16).

Mansjoer, S. S., Kertanugraha, T., & Sumantri, C. (2007). Estimasi jarak genetik antar domba Garut tipe tangkas dengan tipe pedaging. Media Peternakan, 30(2), 129–138.

Mulyono, R., Rahayu, S., & Hanibal, M. (2013). Analisis morfometrik dan pendugaan bobot badan domba silangan lokal Garut jantan di Kabupaten Tasikmalaya. Jurnal Ilmu Produksi Dan Teknologi Hasil Peternakan, 1(1), 24–30. https://doi.org/10.29244/jipthp.1.1.24-30

Naibaho, T., Hasnudi, & Hamdan. (2016). Pengembangan model pita ukur dan rumus pendugaan bobot badan berdasarkan lingkar dada pada ternak kerbau. Jurnal Peternakan Integratif, 4(2), 173–183.

Pratama, A. A., Purbowati, E., & Lestari, C. M. S. (2016). Hubungan antara ukuran-ukuran tubuh terhadap bobot badan domba Wonosobo jantan di Kabupaten Wonosobo Jawa Tengah. Agromedia, 34(2), 11–15.

Somanjaya, R., Heriyadi, D., & Hernaman, I. (2015). Local ewes performance at various variation of length grazing in rentang irigation area of Kabupaten Majalengka. Jurnal Ilmu Ternak Universitas Padjadjaran, 15(1), 41–49. https://doi.org/10.24198/JIT.V15I1.8043

Tama, A.W., Nasich, M., & Wahyuningsih, S. (2016). Hubungan antara lingkar dada, panjang dan tinggi badan dengan bobot badan kambing Senduro jantan. Jurnal Ilmu-Ilmu Peternakan, 26(1), 37–42. https://doi.org/10.21776/ub.jiip.2016.026.01.6




DOI: http://dx.doi.org/10.21776/ub.jiip.2020.030.02.02

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