Efecto de dos sistemas de alojamiento y del sexo sobre el comportamiento productivo de corderos durante el engorde

Archivos de Zootecnia Pub Date : 2020-10-15 DOI:10.21071/AZ.V69I268.5398

G. A. Muñoz-Osorio, A. Aguilar-Caballero, L. Sarmiento-Franco, M. Wurzinger, Carlos Alfredo Sandoval-Castro

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Abstract

Raised pens (RP) have been promoted in the tropical regions of Mexico as a housing system to improves the productivity of growing male and female lambs. They showed high acceptance among farmers, however, there is a lack of studies about the RP system and the use of environmental enrichment in the system. Therefore, this study aimed to compare the productive performance of growing lambs (male and female) housed on RP or ground level (GL) using shaving woods as bedding material. Thirty-two lambs (15 males and 17 females) were used, with an average initial live weight and age of 10.54 ± 1.89 kg and 66.54 ± 22.43 days, respectively. Data were analysed by Variance Analysis considering main factors: housing system (RP and GL) and sex (male and female), and dependant variables: daily weight gain (DWG), feed intake (DMI), feed conversion (FC) and final body weight (FBW). The housing system did not affect DWG, DMI, FC and FBW (P > 0.05). Males presented higher values in all productive indicators than females (except FC). Under the conditions of this study, the productive performance of growing lambs housed either RP or GL was similar.

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两种饲养制度和性别对育肥羔羊生产行为的影响

饲养栏(RP)在墨西哥的热带地区得到推广，作为一种住房系统，以提高生长中的雄性和雌性羔羊的生产力。然而，缺乏关于RP系统和在该系统中使用环境富集的研究。因此，本研究旨在比较以剃须木为垫层材料饲养在RP和ground level (GL)上的生长羔羊(公母)的生产性能。试验羔羊32只，公羊羔15只，母羊羔17只，平均初活重10.54±1.89 kg，平均初龄66.54±22.43日龄。采用方差分析方法对数据进行分析，考虑主要影响因素为饲养系统(RP和GL)和性别(男性和女性)，因变量为日增重(DWG)、采食量(DMI)、饲料系数(FC)和末重(FBW)。住房制度对DWG、DMI、FC和FBW无显著影响(P < 0.05)。男性在所有生产指标中均高于女性(FC除外)。在本试验条件下，RP和GL饲养下生长羔羊的生产性能相似。

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

Archivos de Zootecnia Agricultural and Biological Sciences-Animal Science and Zoology

CiteScore

0.50

自引率

0.00%

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期刊介绍： Archivos de Zootecnia is a quarterly, multilingual, international science journal, published by the University of Cordoba and the Asociación Iberoamericana de Zootecnia. The journal was founded in 1952 as the voice for the Zootechnics Institute of the Veterinary Faculty at the University of Cordoba. Its aim is to disseminate results from research into animal production and related areas, giving special attention to farming systems in developing areas, their local breeds and alternative production methods.