No abstract

This study aims to determine body weight, body weight gain, and body measurements of male and female Kerinci ducks, as well as to determine the diversity of MSTN genes and the association of the MSTN gene on body weight, body weight gain, and body sizes in Kerinci ducks. The materials used were 96 Kerinci ducks and 96 Kerinci duck blood samples. Data analysis included: T-test, T2-hotelling, Principal Component Analysis (PCA), genotype frequency, allele, Hardy-Weinberg equilibrium, Heterozygosity, and PIC. The results showed that body weights at 2 and 3 months of age, body weight gain of 2-3 months and body sizes of 3 months old male Kerinci ducks were significantly different (P <0.05) higher than female Kerinci ducks. Body size markers of male and female Kerinci ducks were the length of the sternum, the length of the shank, and the circumference of the shank, while the shape identifier was the length of the wings. The MSTN|MboI gene in Kerinci ducks was polymorphic. The population of Kerinci ducks was in Hardy-Weinberg equilibrium (P<0.05). Kerinci duck population heterozygosity showed H0<He. The MSTN|MboI gene was associated with BB, PBB, and body measurements of male and female Kerinci ducks, and the best genotype was (-/-).

The nutritive potency of rubber leaves (Hevea brasiliensis) as forage/feed for goats was analysed in vivo. Twenty four male and female postweaned Etawah grade kids aged 4-6 months with body weights between 11 to 26 kg were allocated into three treatment groups (i.e. T0, T1 and T2) with eight repetition designed as Randomized Block Design. Treatment diet T0 consisted of 0% rubber leaves, 80% other forages and 20% rice bran. Treatment diet T1 consisted of 40% rubber leaves, 40% other forages and 20% rice bran, and Treatment diet T2 consisted of 60% rubber leaves, 20% other forages and 20% rice bran. The results showed that DM, DE and DP consumptions, ADG and FCR of the T0, T1 and T2 treatment groups were respectively: 1008, 1040 and 1199 g DM; 2.8, 2.9 and 4.0 McalDE; 31.9, 42.9 and 59.8 g DP; 58.2, 85.7 and 76.1 g/head/day; 25.6, 15.9 and 18.0. It can be concluded that the use of rubber leaves and its branches with composition of 40 to 60% of goat diets can increase energy and protein consumptions, increase body weight gain, decrease FCR, and subsequently increase the production efficiency of the goats.

Penelitian ini dilakukan di Sentra Peternakan Kambing di kecamatan Mestong kabupaten Muaro Jambi selama 6 (enam) bulan. Metode yang digunakan dalam penelitian ini adalah survai. Obyek yang diamati adalah kambing Peranakan Etawah umur lepas sapih (6 bulan). Penentuan sampel dilakukan dengan metode purposive sampling. Tujuan dari penelitian ini adalah mengetahui indeks morfologi ukuran-ukuran tubuh kambing Peranakan Etawah yang meliputi : weight, height slope, length index, width slope, depth index, foreleg length, balance dan cumulative index. Hasil penelitian menunjukkan bahwa rata-rata ukuran tubuh kambing jantan lebih besar dibandingkan dengan kambing betina. Dari perhitungan didapatkan nilai indeks morfologi kambing jantan adalah weight =  52726,34; Height slope = -1,88; Lenght index = 1,0165; Width slope = 0,9935; Depht index = 0,5003 dan Foreleg length = 27,24. Sedangkan indeks morfologi kambing betina adalah Weight =  47477,46; Height slope = -1,94; Lenght index = 1,0278; Width slope = 0,9645; Depht index = 0,4988 dan Foreleg lenght = 26,34. Kesimpulan dari penelitian ini adalah kambing Peranakan Etawah umur lepas sapih di Sentra Pembibitan Kambing di kecamatan Mestong kabupaten Muaro Jambi mempunyai indeks morfologi yang tidak berbeda jauh dengan kambing Peranakan Etawah yang ada di beberapa daerah di Indonesia. kambing Peranakan Etawah, Indeks morfologi, umur lepas sapih.

Penelitian ini bertujuan untuk mengetahui karakteristik fenotipe sapi Simbal jantan dan betina di Kabupaten Merangin. Metode yang digunakan yaitu survey. Teknik pengambilan sampel secara purpossive sampling. Umur I1 dan tidak dalam keadaan bunting. Jumlah sampel sebanyak 60 ekor terdiri dari 30 ekor betina dan 30 ekor jantan. Data yang dihimpun karakteristik kualitatif meliputi warna bulu dan ada tidaknya tanduk. Karakteristik kuantitatif meliputi Bobot Badan, Pertambahan Bobot Badan, Tinggi Pundak, Panjang  Badan, DalamDada, Lingkar Dada, Lebar Dada, Lingkar Kanon dan Tinggi Pinggul. Karakteristik kualitatif dianalisis secara deskriptif sedangkan karakteristik kuantitatif di analisis menggunakan uji beda rata-rata (uji-t), Analisis Komponen Utama, Analisis regresi dan korelasi. Hasil penelitian menunjukkan tidak ada perbedaan karakteristik kualitatif sapi Simbal jantan dan betina yaitu memiliki warna bulu dominan coklat belang putih dan bertanduk. Karakteristik kuantitatif sapi Simbal jantan dengan sapi Simbal betina berbeda nyata (P<0,05). Kesimpulan dari penelitian ini adalah bobot badan, pertambahan bobot badan dan ukuran-ukuran tubuh sapi Simbal jantan lebih baik dibanding sapi Simbal betina. Faktor penentu ukuran-ukuran tubuh sapi Simbal adalah Lingkar Dada dan faktor penentu bentuk tubuh sapi Simbal Jantan adalah Panjang Badan penentu bentuk tubuh Betina adalah Tinggi Pundak. Korelasi antara ukuran tubuh dengan bobot badan yang tertinggi adalah Lingkar Dada.