以云杉和山羊肉为基础的饲粮对栓系土羊肉肉质的影响

IF 2.2 3区 农林科学 Q2 AGRONOMY
Dorothy Kalule Nampanzira, Justus Kwetegyeka, Kamatara Kanifa, Denis Asizua, Christine Kyarimpa, Muhammad Kiggundu, Constantine Bakyusa Katongole, John David Kabasa, Sam Okello, John Robert Stephen Tabuti
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引用次数: 0

摘要

本研究评价了在牧场饲粮中添加无花果叶和深草叶对拴养土羊化学成分和肉质的影响。40只生长完好的公山羊被分配到以下5种处理饲粮中的一种:(i)单独系缚(对照),(ii)系缚加糖蜜(CM), (iii)系缚加带糖蜜的深海参叶(HM), (iv)系缚加带糖蜜的纳塔利无花果叶(FM)和(v)系缚加带糖蜜的纳塔利无花果和深海参(FHM)。饲喂试验结束时,屠宰山羊,采集背最长肌(LD)和皮下脂肪样本进行化学和脂肪酸分析。日粮对蒸煮损失和剪切力值没有影响(P > 0.05)。蒸煮损失范围为10.88% (CM最低)~ 18.93% (FM最高),剪切力范围为21.16 N (CM最低)~ 32.49 N (FM最高)。蛋白质含量为18.2% (HM组最低)~ 21.12% (HM组最高),粗脂肪含量为0.33 ~ 5.95%。饲粮对脂肪含量和脂肪酸组成、总SFA、总MUFA、总PUFA、n3、n6、PUFA:SFA比值和n6/n3比值也无显著影响(P > 0.05)。肌肉脂肪酸(FA)分布以油酸(1.472 ~ 3.097 mg/g)为主,其次为棕榈酸(1.229 ~ 2.079 mg/g)和硬脂酸(1.125 ~ 2.066 mg/g)。总SFA在2.474 ~ 4.261 mg/g之间,总MUFA在1.641 ~ 3.451 mg/g之间。PUFA:SFA比值为0.337 (FM) ~ 0.535 (FHM), n6/n3比值为1.107 ~ 4.035。饲粮中添加F. natalensis和H. abyssinica对本地山羊的肉质属性没有显著影响,但所有饲粮都能产生瘦肉、嫩肉和营养健康的肉质,这凸显了本地browse物种在低投入银山牧养系统中提高山羊肉质的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of supplemental diets based on Ficusnatalensis and Harrisoniaabyssinica on the meat quality of tethered indigenous goat meat

This study evaluated the effect of supplementing pasture diets with Ficus natalensis and Harrisonia abyssinica foliage on chemical composition and meat quality of tethered indigenous goats. Forty growing intact male goats were assigned to one of five treatment diets: (i) tethering alone (control (C)), (ii) tethering plus molasses (CM), (iii) tethering plus Harrisonia abyssinica leaves with molasses (HM), (iv) tethering plus Ficus natalensis leaves with molasses (FM) and (v) tethering plus Ficus natalensis and Harrisonia abyssinica with molasses (FHM). At the end of the feeding trial, goats were slaughtered and samples of the Longissimus dorsi (LD) muscle and subcutaneous fat were collected for chemical and fatty acid analysis. Diet did not affect cooking loss or shear force values (P > 0.05). Cooking loss ranged between 10.88% (lowest in CM) to18.93% (highest in FM), while shear force ranged from 21.16 N (lowest in CM) to 32.49 N (highest in FM). Protein content varied from 18.2% (lowest in HM) to 21.12% (highest in FHM), and crude lipid content ranged between 0.33 and 5.95%. Fat content and fatty acid composition, total SFA, total MUFA, total PUFA, n3,n6, PUFA:SFA ratio and n6/n3 ratio were also not affected (P > 0.05) by diet. The muscle fatty acid (FA) profile was dominated by oleic (1.472–3.097 mg/g), followed by Palmitic acid (1.229–2.079 mg/g) and stearic acid (1.125–2.066 mg/g). The total SFA ranged between 2.474 mg/g and 4.261 mg/g and total MUFA ranged between 1.641 and 3.451 mg/g. The PUFA:SFA ratio varied from 0.337 (FM) and 0.535 (FHM), the n6/n3 ratio ranged between 1.107 and 4.035. Supplementing tethered indigenous goats with F. natalensis and H. abyssinica did not significantly affect meat quality attributes, but all diets produced lean, tender, and nutritionally healthy meat, highlighting the potential of native browse species to enhance goat meat quality in low-input silvopastoral systems.

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来源期刊
Agroforestry Systems
Agroforestry Systems 农林科学-林学
CiteScore
5.30
自引率
9.10%
发文量
78
审稿时长
4.5 months
期刊介绍: Agroforestry Systems is an international scientific journal that publishes results of novel, high impact original research, critical reviews and short communications on any aspect of agroforestry. The journal particularly encourages contributions that demonstrate the role of agroforestry in providing commodity as well non-commodity benefits such as ecosystem services. Papers dealing with both biophysical and socioeconomic aspects are welcome. These include results of investigations of a fundamental or applied nature dealing with integrated systems involving trees and crops and/or livestock. Manuscripts that are purely descriptive in nature or confirmatory in nature of well-established findings, and with limited international scope are discouraged. To be acceptable for publication, the information presented must be relevant to a context wider than the specific location where the study was undertaken, and provide new insight or make a significant contribution to the agroforestry knowledge base
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