通过形态计量学评价描述莫拉达诺瓦羔羊肉品生产潜力

IF 0.8 4区 农林科学 Q3 AGRONOMY
Genilson César Alves, W. Vega, H. Costa, R. Silveira, A. Landim
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引用次数: 1

摘要

摘要:莫拉达诺瓦品种有效畜群较低,其白色品种有灭绝的危险。根据品种标准而不与生产能力相关的个体选择在今天占主导地位。我们认为,拯救这一宝贵遗传资源的最佳方法是描述其商业用途的生产潜力。因此,本研究通过形态学和动物计量学数据、生产性能和胴体特征来描述莫拉达诺瓦羔羊的肉类生产潜力。选用莫拉达新星红(MNR)和杂交莫拉达新星(红色×莫拉达新星白- mnf1)两个遗传组24只未阉割公羊羔,采用完全随机设计。采用单因素和多因素分析。两个遗传群之间的商业切肉产量、胴体的理化特性和定性测量结果相似。在28个胴体特征中,MNF1羔羊的7个特征更大。胸高、臀高和畸形指数是选择具有肉品生产潜力的MN羔羊的重要变量。基于因子分析和层次聚类分析,建立了莫拉达诺瓦牛肉形态计量指数(MNBMI)。两组均具有较高的胸部发育、产肉能力、增重能力、饲养效率和呼吸能力,具有较大的生态性和适应性;但该指标的应用和验证表明,该指标在杂交羔羊肉制品生产中具有优势。因此,MNF1羔羊是旱地绵羊生产的可持续选择。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Morada Nova lambs’ meat production potential description through morphometric evaluation
ABSTRACT: Morada Nova breed has a low effective herd, and its white variety is in risk of extinction. The selection of individuals based on breed standard without correlation with productive aptitude is predominant today. We believe that the best way to rescue this valuable genetic resource is to describe its productive potential for commercial use. Thus, this study described the meat production potential of Morada Nova lambs through morphological and zoometric data, performance and carcass characteristics. Twenty-four non-castrated male lambs from two genetic groups were used: Morada Nova red (MNR) and crossbreed Morada Nova (red x Morada Nova white-MNF1) distributed in a completely randomized design. Univariate and multivariate analysis were used. The yields of commercial cuts and the physicochemical characteristics and qualitative measurements of the carcass were similar between the genetic groups. Seven of the 28 characteristics of the carcass were greater in MNF1 lambs. The chest height, rump height and anamorphosis index showed to be important variables in the choice of MN lambs with meat production potential. Based on factor and hierarchical cluster analysis, the Morada Nova beef morphometric index (MNBMI) was created. Both of groups have high thoracic development, ability to produce meat, weight gain, feeding efficiency and breathing capacity, infusing greater rusticity and adaptability; however, the application and validation of the developed index showed superiority for meat production in the crossed lambs. Thus, the MNF1 lambs are a sustainable option for sheep production in drylands.
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来源期刊
Ciencia Rural
Ciencia Rural AGRONOMY-
CiteScore
1.70
自引率
0.00%
发文量
233
审稿时长
2-4 weeks
期刊介绍: The purpose of Ciência Rural is to publish the results of original research, note and reviews which contribute significantly to knowledge in Agricultural Sciences. Preference will be given to original articles that develop news concepts or experimental approaches and are not merely repositories of scientific data. The decison of acceptance for publication lies with the Editors and is based on the recommendations of Editorial Comission, Area Committee and/ or ad hoc reviewers. The editors and reviewers are external to the institution.
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