干旱区生态环境知识资源中心(Arid): Morphometric characterization and zoometric indices of white Morada Nova breed: The first step for conservation

Arid

DOI	10.1016/j.smallrumres.2020.106178
	Morphometric characterization and zoometric indices of white Morada Nova breed: The first step for conservation
	Nunes, Samuel Freitas; Ferreira, Josiel; Freitas Silveira, Robson Mateus; Sales, Daniel Caetano; Rufino de Sousa, Jose Ernandes; Paiva, Samuel Rezende; Evangelista Facanha, Debora Andrea
通讯作者	Ferreira, J
来源期刊	SMALL RUMINANT RESEARCH
ISSN	0921-4488
EISSN	1879-0941
出版年	2020
卷号	192
英文摘要	The objective of this study was to carry out a morphometric characterization of white Morada Nova sheep using the mean of sixteen (16) morphological traits and thirteen (13) zoometric indices. A total of 115 animals of seven (7) flocks in three states of the Northeast from Brazil were evaluated. Flock differences for quantitative variables were evaluated through analysis of variance, while the chi-squared (chi(2)) test was conducted for qualitative variables. A principal component analysis (PCA) was performed in order to reduce the number of variables in the study, and canonical discriminant analysis (CDA) and tree analysis were used to define which variables had the greatest discriminatory power to differentiate the body shape of the flocks. Five principal components (PCs) were identified, which together explain more than 72 % of the variation in quantitative and qualitative variables, and following the order of importance: structure, pigmentation, height, ear pinna and physical protection. Another five PC's were also determined for the zoometric indices, with these explaining more than 90 % of the variation found and were named in the following order of importance: productive potential, body capacity, cephalic, pelvic and chest expansion. The cephalic index is responsible for 68.35 % of differentiation of the flocks and practically divided the animals into two flocks. The sheep classification according to flocks in the CDA shows that three flocks were classified according to their own characteristics as belonging to the flock itself, and the others have a good part of the sheep classified as belonging to other flocks. White sheep of the Morada Nova breed have a good thoracic capacity, medium body development and square rump, have depigmented or partially depigmented mucous, hooves and skin, and morphological characteristics which indicate better aptitude for meat production. The variables related to hooves (pigmentation) and cephalic measurements are those which have the greatest differentiation power between animals. The more homogeneous characteristics were ocular mucous, ear pinna and skin of the dorse (pigmentation), ear length and the withers-rump relation index.
英文关键词	Genetic resources Locally adapted sheep Morphology Semi-arid region Zoometry
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000583630000004
WOS关键词	SANTA INES
WOS类目	Agriculture, Dairy & Animal Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327192
作者单位	[Nunes, Samuel Freitas; Ferreira, Josiel; Sales, Daniel Caetano; Evangelista Facanha, Debora Andrea] Fed Rural Univ Semiarid Reg UFERSA, Dept Anim Sci, Adapt Physiol & Genet Resources Lab, BR-59625900 Mossoro, RN, Brazil; [Freitas Silveira, Robson Mateus] State Univ Acarau Valley UVA, Dept Anim Sci, BR-62040370 Sobral, CE, Brazil; [Nunes, Samuel Freitas; Sales, Daniel Caetano; Rufino de Sousa, Jose Ernandes] Univ Fed Rural Semi Arido, Dept Anim Sci, Genet & Anim Breeding Lab, BR-59625900 Mossoro, RN, Brazil; [Paiva, Samuel Rezende] Embrapa Empresa Brasileira Pesquisa Agr Recursos, BR-70770917 Brasilia, DF, Brazil
推荐引用方式 GB/T 7714	Nunes, Samuel Freitas,Ferreira, Josiel,Freitas Silveira, Robson Mateus,et al. Morphometric characterization and zoometric indices of white Morada Nova breed: The first step for conservation[J],2020,192.
APA	Nunes, Samuel Freitas.,Ferreira, Josiel.,Freitas Silveira, Robson Mateus.,Sales, Daniel Caetano.,Rufino de Sousa, Jose Ernandes.,...&Evangelista Facanha, Debora Andrea.(2020).Morphometric characterization and zoometric indices of white Morada Nova breed: The first step for conservation.SMALL RUMINANT RESEARCH,192.
MLA	Nunes, Samuel Freitas,et al."Morphometric characterization and zoometric indices of white Morada Nova breed: The first step for conservation".SMALL RUMINANT RESEARCH 192(2020).