Vet World   Vol.18   June-2025  Article - 2 

Effects of coconut meal inclusion on growth performance, nutrient utilization, carcass characteristics, and meat quality in Awassi Lambs

Background and Aim: Feed cost constitutes a major constraint in small ruminant production systems in Jordan. The search for alternative, cost-effective feed ingredients has prompted interest in coconut meal (COC), a by-product of coconut oil extraction. This study evaluated the effects of including 10% COC (COC10) in the diet on the growth performance, nutrient utilization, carcass characteristics, and meat quality of growing Awassi lambs.

Materials and Methods: Twenty-four male Awassi lambs (17.2 ± 0.63 kg) were randomly assigned to two dietary treatments: A control diet without COC (CON) and a test diet with 100 g/kg dry matter (DM) COC (COC10). The feeding trial lasted 70 days, comprising a 7-day adaptation and a 63-day experimental period. Feed intake and growth performance were monitored throughout. On day 49, five lambs per group were used to assess nutrient digestibility and nitrogen balance using total fecal and urine collection in metabolic cages. On day 64, lambs were slaughtered to evaluate carcass characteristics and meat quality. Blood samples were collected for serum biochemical analysis.

Results: The inclusion of COC10 significantly increased acid detergent fiber and ether extract intake (p ≤ 0.05), with no adverse effects on DM intake, weight gain, feed efficiency, or nutrient digestibility (p > 0.05). Economic analysis revealed a 16% reduction in production cost per kg of weight gain in the COC10 group (p = 0.05). No significant effects were observed on carcass traits, meat quality parameters, or blood biochemical profiles.

Conclusion: Incorporating COC10 into the diet of Awassi lambs had no detrimental impact on growth, carcass characteristics, or health status, while improving economic efficiency. COC is a viable alternative protein and energy source in lamb diets. Further research is warranted to determine optimal inclusion rates under varying production systems.

Keywords: Awassi lambs, carcass characteristics, coconut meal, cost efficiency, meat quality, nutrient digestibility.

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How to cite this article: Al-Khaza’leh J and Obeidat B (2025) Effects of coconut meal inclusion on growth performance, nutrient utilization, carcass characteristics, and meat quality in Awassi Lambs, Veterinary World, 18(6): 1411-1420.

Received: 12-01-2025   Accepted: 13-05-2025   Published online: 06-06-2025

Corresponding author: Ja’far Al-Khaza’leh    E-mail: jkhaza@bau.edu.jo

DOI: 10.14202/vetworld.2025.1411-1420

Copyright: Al-Khaza’leh, et al. This article is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http:// creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.