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<p>This study assessed the effects of graded concentrate supplementation on growth and nutrient utilization in two Ethiopian goat breeds, Afar and Bati fed Panicum grass hay. Thirty-six yearling intact male goats (18 Afar, 18 Bati; initial weight 14.0 ± 0.61 kg) were used in a randomized complete block design with 2 breeds and 3 concentrate levels (200 g, 300 g, 400 g/day) over 90 days. The concentrate comprised 50% wheat bran, 28% maize grain, 20% Noug cake, and 2% salt-mineral premix, fed twice daily. Afar goats consumed more concentrate than Bati (311.2 vs. 301.1 g/day; <i>p</i> &lt; 0.05) and intake increased with supplementation level. Digestible dry matter (425.5 vs. 417.5 g/day), crude protein (94.0 vs. 92.3 g/day), and organic matter (381.1 vs. 376.4 g/day) intakes were higher in Afar goats (<i>p</i> &lt; 0.05). Goats on 400 g concentrate (T3) showed superior performance with greater average daily gain (60.0 vs. 52.9 vs. 38.7 g/day), metabolic body weight gain (9.2 vs. 8.9 vs. 8.7 g/kg BW^0.75), final weight (19.4 vs. 18.7 vs. 17.9 kg), feed conversion efficiency (10.5 vs. 9.8 vs. 8.0), and gain rate (27.9 vs. 25.5 vs. 22.7) compared to lower levels (T2, T1). Overall, 400 g/day concentrate supplementation significantly improved growth and feed efficiency in both breeds, with Afar outperforming Bati. These results support concentrate use to enhance production of Ethiopian goats.</p>

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Effects of graded levels of dietary concentrate mixture on growth performance and nutrients use efficiency of afar and bati goat breeds fed on panicum grass hay as a basal diet

  • 期刊论文

  • 发表日期：

    2026年1月30日

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  • Anwar Seid,
  • Yesihak Yusuf,
  • Sileshi Gadissa,
  • Fekede Feyissa,
  • Aemiro Kehaliew

摘要

This study assessed the effects of graded concentrate supplementation on growth and nutrient utilization in two Ethiopian goat breeds, Afar and Bati fed Panicum grass hay. Thirty-six yearling intact male goats (18 Afar, 18 Bati; initial weight 14.0 ± 0.61 kg) were used in a randomized complete block design with 2 breeds and 3 concentrate levels (200 g, 300 g, 400 g/day) over 90 days. The concentrate comprised 50% wheat bran, 28% maize grain, 20% Noug cake, and 2% salt-mineral premix, fed twice daily. Afar goats consumed more concentrate than Bati (311.2 vs. 301.1 g/day; p < 0.05) and intake increased with supplementation level. Digestible dry matter (425.5 vs. 417.5 g/day), crude protein (94.0 vs. 92.3 g/day), and organic matter (381.1 vs. 376.4 g/day) intakes were higher in Afar goats (p < 0.05). Goats on 400 g concentrate (T3) showed superior performance with greater average daily gain (60.0 vs. 52.9 vs. 38.7 g/day), metabolic body weight gain (9.2 vs. 8.9 vs. 8.7 g/kg BW^0.75), final weight (19.4 vs. 18.7 vs. 17.9 kg), feed conversion efficiency (10.5 vs. 9.8 vs. 8.0), and gain rate (27.9 vs. 25.5 vs. 22.7) compared to lower levels (T2, T1). Overall, 400 g/day concentrate supplementation significantly improved growth and feed efficiency in both breeds, with Afar outperforming Bati. These results support concentrate use to enhance production of Ethiopian goats.