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首页> 外文期刊>Arquivo Brasileiro de Medicina Veterinaria e Zootecnia >Características produtivas em búfalos leiteiros (Bubalus bubalis) na Amaz?nia
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Características produtivas em búfalos leiteiros (Bubalus bubalis) na Amaz?nia

机译：乳制品水牛（Bubalus Bubalis）的生产特征在Amaz？

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摘要

The objective of this study was to determine factors affecting phenotypic characteristics related to milk production and reproductive efficiency of dairy buffalo. Phenotypic records of 2,459 Murrah, Mediterranean and crossbred buffaloes from the Embrapa Eastern Amaz?nia herd, from 1969 to 2013 were used. Traits included: total milk production during lactation (TMP), milk production corrected for 305 days (P305); cow weight at calving (CW), fat milk percentage (F), age at first calving (AFC), calving interval (CI), calf birth weight (BW), as well as lactation (LP) and service periods (SP). Most traits were affected by genetic group as well as year and season or interaction between them. Genetic group affected F, CI, SP and CW. Very young and older cows showed poorer production traits. There was interaction between season and year for F, CI and CW. Correlations traits were generally medium to low. The principal component analysis showed that higher fat milk percentage was associated with higher percentage of Murrah breed, longer lactation period and older cows. Phenotypic characteristics in buffaloes reared in the Brazilian Amazon were significantly affected by genetic and management factors. This information can be used to help build sustainable production systems for the region and guide farmer decisions.
机译：本研究的目的是确定影响与乳制品水牛牛奶生产和繁殖效率有关的表型特征的因素。从1969年到2013年，使用了来自Graverna AmazeAve的2,459名Murrah，地中海和杂交水牛的表型记录，从1969年到2013年。特性包括：哺乳期间的牛奶总产量（TMP），牛奶生产校正305天（P305）;牛重量在Calcing（CW），脂肪牛奶百分比（f），第一次加工（AFC），Calping间隔（CI），小牛诞生重量（BW），以及哺乳期（LP）和服务期（SP）。大多数特征受到遗传群的影响以及季节和季节或它们之间的互动。基因组影响F，CI，SP和CW。非常年轻和旧的奶牛表现出较差的生产性状。 F，CI和CW季节和年之间存在互动。相关性状通常为中低至低。主要成分分析表明，较高的脂肪牛奶百分比与Murrah品种，较长的哺乳期和较大的奶牛较高的百分比相关。巴西亚马逊饲养的水牛的表型特征受到遗传和管理因素的显着影响。此信息可用于帮助该地区建立可持续生产系统，并指导农民决策。

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