信德省品种牛的繁殖效率和产奶量

Q4 Veterinary

Revista Brasileira De Medicina Veterinaria Pub Date : 2020-11-16 DOI:10.29374/2527-2179.bjvm105120

Rafaella da Rocha Olivieri de Barros, R. R. Mello, S. L. G. D. Sousa, K. N. Oliveira, Jorge Carlos Dias de Sousa, E. Modesto, M. Mello

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引用次数: 0

摘要

本研究的目的是确定红信德雌性的生产和繁殖特征的平均值，并评估繁殖特征是否对该品种的产奶量有影响。ABCZ提供了来自巴西北部、东北部、中西部和东南部地区的638头信德奶牛的繁殖和生产性状的相关数据。采用方差分析，然后分析生殖性状之间以及这些性状与产奶性状之间的相关性。第一次产仔的平均年龄（AFC）、产仔年龄（CA）、产胎间隔（CI）、繁殖效率（RE）、干燥期（DP）、泌乳期（LP）、产奶量（MY）和总产奶量的平均值为549.83±560.47天；1843.53±739.99天；533.28±206.66天；75.46±19.95%；248.28±206.66天；263.22±63.51天；7.08±2.78kg牛奶。第1天和1875.28±893.36kg的乳。将AFC、产仔顺序（CO）、CA、CI、RE和LP等性状分为不同类别，不同类别间对MY没有影响，而CO与LP呈正相关。因此，可以得出结论，红信德品种奶牛的AFC平均值较高，MY、CI和RE平均值中等。

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Reproductive efficiency and milk yield in Sindhi breed cattle

The aim of this study was to identify the average of productive and reproductive traits in Red Sindhi females and evaluate if there is an influence of the reproductive traits on milk yield in this breed. Data related to reproductive and productive traits of 638 Sindhi breed dairy cows from North, Northeast, Midwest and Southeast regions of Brazil were provided by ABCZ. Analysis of variance followed by analysis of correlation among reproductive traits and between these and milk yield traits were used. Averages for age at first calving (AFC), calving age (CA), calving interval (CI), reproductive efficiency (RE), dry period (DP), lactation period (LP),milk yield (MY), and total milk yield (TMY) were 549.83 ± 560.47 days; 1843.53 ± 739.99 days; 533.28 ± 206.66 days; 75.46 ± 19.95%; 248.28 ± 206.66 days; 263.22 ± 63.51 days; 7.08 ± 2.78 kg of milk. day-1 and 1875.28 ± 893.36 kg of milk.lactation-1, respectively. The traits AFC, calving order (CO), CA, CI, RE and LP were separated into categories and there was no effect on MY among different categories, while the CO showed positive correlation with LP. Therefore, it can be concluded that Red Sindhi breed dairy cows showed high averages for AFC and medium averages for MY, CI and RE.

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来源期刊

Revista Brasileira De Medicina Veterinaria 农林科学-兽医学

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Brazilian Journal of Veterinary Medicine was launched in 1979 as the official scientific periodical of the Sociedade de Medicina Veterinária do Estado do Rio de Janeiro (SOMVERJ). It is recognized by the Sociedade Brasileira de Medicina Veterinária (SBMV) and the Conselho Regional de Medicina Veterinária do Estado do Rio de Janeiro (CRMV-RJ).