Efektivitas Suplementasi Vitamin D3 terhadap Konsumsi Nutrien, Metabolit Darah, dan Karakteristik Estrus Kambing Boerja Awal Reproduksi

Abstract

Penelitian ini bertujuan untuk mengkaji efektivitas suplementasi vitamin D3 terhadap konsumsi nutrien, metabolit darah, dan karakteristik estrus kambing Boerja betina guna mengoptimalkan efisiensi reproduksi. Sepuluh ekor kambing Boerja betina (BB 43,0 ± 9,57 kg) digunakan dalam Rancangan Acak Kelompok (RAK) dengan 5 kelompok berdasarkan bobot badan, 2 perlakuan (P0: ransum basal; P1: basal + 0,05% vitamin D3), dan 2 ulangan waktu. Peubah yang diamati adalah konsumsi nutrien, metabolit darah, serta karakteristik vulva dan estrus pada periode pra- hingga pasca-kawin. Data konsumsi nutrien, profil metabolit darah, dan karakteristik vulva dianalisis menggunakan Mixed Model with Repeated Measures, sedangkan data karakteristik estrus dianalisis menggunakan General Linear Model. Suplementasi vitamin D3 secara nyata (P<0,05) meningkatkan konsumsi makronutrien, sedangkan kadar kolesterol darah dan karakteristik vulva (warna, bentuk, lendir, dan suhu vulva) dipengaruhi secara nyata (P<0,05) oleh periode pengamatan. Terdapat efek interaksi (P<0,05) antara perlakuan dan periode terhadap kolesterol darah, warna, dan lendir vulva. Disimpulkan bahwa suplementasi vitamin D3 efektif dalam menunjang efisiensi reproduksi melalui peningkatan konsumsi nutrien dan optimalisasi kondisi fisiologis, tanpa mengganggu siklus reproduksi alami ternak.

This study aimed to examine the effectiveness of vitamin D3 supplementation on nutrient intake, blood metabolites, and estrus characteristics in female Boerja goats to optimize reproductive efficiency. Ten female Boerja goats (BW 43.0 ± 9.57 kg) were used in a Randomized Block Design (RBD) with 5 blocks based on body weight, 2 treatments (P0: basal diet; P1: basal diet + 0.05% vitamin D3), and 2 time replicates. The observed variables were nutrient intake, blood metabolites, and vulvar and estrus characteristics during the pre- to post-mating period. Data on nutrient intake, blood metabolite profiles, and vulvar characteristics were analyzed using a Mixed Model with Repeated Measures, while data on estrus characteristics were analyzed using a General Linear Model. Vitamin D3 supplementation significantly (P<0.05) increased macronutrient intake, while blood cholesterol and vulvar characteristics (color, shape, mucus, and vulvar temperature) were significantly (P<0.05) influenced by the observation period. There was an interaction effect (P<0.05) between treatment and period on blood cholesterol, vulva color, and vulva mucus. It was concluded that vitamin D3 supplementation effectively supports reproductive efficiency by increasing nutrient intake and optimizing physiological conditions, without disrupting the animals' natural reproductive cycle.