BODY COMPOSITION AS A FUNCTION OF COAT COLOR, SEX AND AGE IN LOCAL KIDS FROM NORTHERN MEXICO

IF 0.5 4区农林科学 Q4 AGRICULTURE, MULTIDISCIPLINARY

Agrociencia Pub Date : 2023-06-07 DOI:10.47163/agrociencia.v57i4.2916

J. Maldonado-Jáquez, P. Arenas-Baéz, J. R. Garay-Martínez, L. D. Granados-Rivera

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引用次数: 1

Abstract

The aim was to evaluate the effect of coat color, sex and age on body composition in local kids from northern Mexico. Eighty-three local kids between 1 and 30 days of age were selected. They were assigned to groups according to coat color (dark and light), sex (males and females) and age (1=1 to 10; 2=11 to 20 and 3=21 to 30 days). Pigmentation of skin, hooves, mucous membranes, morphostructural characteristics, live weight and 14 zoomometric measurements were evaluated. A predominant phenotype was found of animals without mammels, beards, without pigment in the skin and hooves, with horns, horizontal ears and pigmented mucous membranes. The highest values (p < 0.05) for live weight (PV), neck length and width (LCue, ACue), chest circumference (CPe) and flank depth (PFl) were found in dark kids. The highest value (p < 0.05) in ear length (LO) was observed in light-colored kids. When considering sex, the highest values (p < 0.05) were observed in males for all traits, except for length and width of face (LCa, ACa) and width of ears (AO), height at withers (ACruz), PFl and sacrolumbar height (ASL), which were not different (p > 0.05). When considering age, the highest values were found in all traits for group 3. All variables were positively and significantly correlated. The variables showing the greatest magnitude of change in the first 20 days of age are PV (+40 %), LCa, LCor, CPe (+15 %) and LCue, ACruz, PFl, leg length (+10 %), while between 20 and 30 days of age the magnitude of change generally decreases. It is concluded that coat color, sex and age significantly influence the body composition of local kids from northern Mexico, which may have implications in the selection and marketing thereof.

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墨西哥北部当地儿童的身体组成与毛色、性别和年龄的关系

目的是评估肤色、性别和年龄对墨西哥北部当地儿童身体成分的影响。83名1至30日龄的当地儿童被选中。根据毛色(深色和浅色)、性别(男性和女性)和年龄(1=1至10;2=11至20天，3=21至30天)。评估皮肤、蹄、粘膜色素沉着、形态结构特征、活重和14项缩放测量指标。主要表型是没有哺乳动物，没有胡须，皮肤和蹄中没有色素，有角，水平的耳朵和色素的粘膜。活重(PV)、颈长、颈宽(LCue、ACue)、胸围(CPe)、腹深(PFl)以深色儿童最高(p < 0.05)。耳长(LO)以浅色儿童最高(p < 0.05)。从性别上考虑，除脸长、脸宽(LCa、ACa)、耳宽(AO)、肩高(ACruz)、腰高(PFl)和腰高(ASL)外，其余性状均为雄性最高(p < 0.05)。考虑年龄时，各组各性状均以第3组最高。各变量呈显著正相关。前20日龄变化幅度最大的变量为PV(+ 40%)、LCa、lor、CPe(+ 15%)和LCue、ACruz、PFl、腿长(+ 10%)，20 ~ 30日龄变化幅度普遍减小。结论是，毛色、性别和年龄对墨西哥北部当地儿童的身体成分有显著影响，这可能对其选择和营销产生影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Agrociencia 农林科学-农业综合

CiteScore

0.50

自引率

33.30%

发文量

审稿时长

18-36 weeks

期刊介绍： AGROCIENCIA is a scientific journal created and sponsored by the Colegio de Postgraduados. Its main objective is the publication and diffusion of agricultural, animal and forestry sciences research results from mexican and foreign scientists. All contributions are peer reviewed. Starting in the year 2000, AGROCIENCIA became a bimonthly and fully bilingual journal (Spanish and English versions in the same issue). Since 2007 appears every month and a half (eight issues per year). In addition to the printed issues, the full content is available in electronic format.