Peubah Pembeda Ukuran Tubuh Kambing Peranakan Etawah (PE) Induk Betina di antara Peternakan yang Berbeda

Abstract

Kambing Peranakan Etawah (PE) merupakan hasil grading-up antara kambing etawah dan kambing kacang yang mewariskan sifat-sifat tetuanya. Perubahan morfologi pada kambing PE dapat terjadi akibat perbedaan adaptasi di kondisi ekologi yang berbeda-beda. Penelitian ini bertujuan untuk mengetahui variabel pembeda ukuran permukaan tubuh kambing PE betina dewasa yang sudah laktasi (umur 3 tahun atau kondisi gigi I3) antara BBPTU-HPT Baturraden dan BPTU-HPT Pelaihari di Kalimantan Selatan. Pengukuran permukaan tubuh linear kambing PE meliputi tinggi pundak (X1), tinggi pinggul (X2), panjang badan (X3), lebar dada (X4), dalam dada (X5), lebar pinggul (X6), panjang pinggul (X7), lingkar dada (X8), dan lingkar kanon (X9). Data dianalisis dengan statistik deskriptif, T2 Hotelling, diskriminan Fisher, dan penggolongan Ward-Anderson. Peubah pembeda ukuran permukaan tubuh linear antara kambing PE betina peternakan Baturraden dan Pelaihari ditemukan sebanyak 6 buah, yaitu tinggi pundak (X1), lebar dada (X4), dalam dada (X5), panjang pinggul (X7), lingkar dada (X8), dan lingkar kanon (X9). Penggolongan Wald-Anderson menunjukkan bahwa kelompok kambing PE di peternakan Baturraden dan Pelaihari tidak memiliki kemimripan ukuran tubuh sehingga seluruh kelompok kambing PE di masing-masing peternakan dapat dipertahankan.

Etawah-grade Goat is the result of grading up between etawah goat and kacang goat that has the inheritance of their parents' trait. Morphological changes in etawah-grade goat can occur due to differences in adaptation in different ecological conditions. The purpose of this research was to determine the discriminator variables of body size measurements in BBPTU-HPT Baturraden and BPTU-HPT Pelaihari with a total of 30 heads of does in each farm. Body size measurements was performed on 3 years old Etawah-grade does which consisted of withers height (X1), hip height (X2), body length (X3), chest width (X4), chest depth (X5), hip-width (X6), hip-length (X7), chest girth (X8), and cannon circumference (X9). Data were analyzed by descriptive statistics, T2-Hotelling, Fisher discriminant, and Wald-Anderson classification. Six discriminator variables were found in Baturraden and Pelaihari, consisted of withers height (X1), chest width (X4), chest depth (X5), hip-length (X7), chest girth (X8), and cannon circumference (X9). The classification of Wald-Anderson showed that Etawahgrade does of Baturraden and Pelaihari are not similar in body size so that all Etawah-grade does can be maintained on each farm.