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Type:	Artigo de Periódico
Title:	Biometric measurements of Santa Inês meat sheep reared on Brachiaria brizantha pastures in Northeast Brazil
Authors:	Joelma da Silva Souza Gelson do Santos Difante João Virgínio Emerenciano Neto Ângela Maria Quintão Lana Francisca Fernanda da Silva Roberto Pedro Henrique Cavalcante Ribeiro
Abstract:	This study was undertaken to examine biometric measurements during the growth phase of male and female Santa Inês sheep reared in Brachiaria brizantha pastures in northeastern Brazil. The experiment involved 24 castrated males and 24 females at an initial age of 90 days, with an average body weight of 19.04 ± 0.96 kg. Treatments consisted of the effect of four cultivars (Marandu, Xarae´s, Piatã and Paiagua´s) and two sexes. Six animals were used per treatment, in a randomized-block experimental design. The following characteris tics were evaluated: abdominal circumference (AC), body condition score (BCS), body length (BL), body weight (BW), body capacity 1 (BC1), body capacity 2 (BC2), chest width (CW), heart girth (HG), leg circumference (LC), leg length (LL), rump height (RH), rump width (RW) and withers height (WH). Data were subjected to descriptive analysis, Pearson’s correlation, ANOVA and Tukey’s, Kruskal Wallis and Mann-Whitney tests. Univariate and multiple regressions were applied to estimate BW with a maximum error level of 5%. Signifi cant differences were observed for the biometric measurements between sexes and culti vars (p<0.05). Body weight was highly correlated (>70%) with AC, WH, CG, RW, BC1 and BC2. The male sheep grazed on cultivars Piatã showed the best values for BW (40.43 kg), HG, RW, WH, LL, LC (102.46; 20.8; 65.23; 60.44; 42.54 cm respectively) and BC1 (4.25 kg/ cm). Females grazed on cultivar Marandu had higher values for RW, CW, LL (17.26; 20.1; 75.98 cm respectively), BC1 (6.03 kg/cm) and BC2 (0.422 kg/cm). The equations that best estimated live weight were BC1 and HG. In male and female Santa Inês sheep, biometric parameters grow differently depending on the cultivar where they are grazed during the growth phase. Cultivars Marandu and Piatã are the most recommended for sheep production, as they provided the best performance and body development in those animals.
Subject:	Zootecnia Brasil
language:	eng
metadata.dc.publisher.country:	Brasil
Publisher:	Universidade Federal de Minas Gerais
Publisher Initials:	UFMG
metadata.dc.publisher.department:	VET - DEPARTAMENTO DE ZOOTECNIA VETER - ESCOLA DE VETERINARIA
Rights:	Acesso Aberto
metadata.dc.identifier.doi:	https://doi.org/10.1371/journal.pone.0219343
URI:	http://hdl.handle.net/1843/56444
Issue Date:	30-Jul-2019
metadata.dc.url.externa:	https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0219343
metadata.dc.relation.ispartof:	PLoS ONE
Appears in Collections:	Artigo de Periódico

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