Association Between Body and Udder Measurement Traits and Milk Yield of Holstein Cows

Research in Agriculture Livestock and Fisheries Pub Date : 2024-01-21 DOI:10.3329/ralf.v10i3.71004

Xichavo Invite Risimati, Thlarihani Cynthia Makamu, Thobela Louis Tyasi

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Abstract

The association between body and udder measurements can be used towards the improvement of milk yield. Hence, this study aimed to identify the udder measurement traits and body measurement traits that may be used by farmers to increase milk yield of Holstein cows. The study was conducted at Limpopo Dairy Farm in Makhado Local Municipality at Louis Trichardt, Limpopo Province, South Africa where a total of 50 lactating Holstein cows were used. Pearson’s correlation technique was used for data analysis. Findings between body measurement traits and milk yield showed that milk yield had a highly positive significant (p ˂ 0.01) correlation with rump height (r = 0.55), and positive significant (p < 0.05) with withers height (r = 0.44) and body length (r = 0.42). Results between udder measurement traits and milk yield showed that milk yield had a highly positive significant (p < 0.01) correlation with udder length before milking (r = 0.57), udder circumference before milking (r = 0.55) and udder circumference after milking (r = 0.51) The results also showed that milk yield had a positive significant (p < 0.05) correlation with teat diameter before milking (r = 0.30), teat length before milking (r = 0.31), teat circumference before milking (r = 0.36) and udder length after milking (0.47). The findings imply that all traits correlated with milk yield can be used to enhance milk yield of Holstein cows through selection during breeding. Vol. 10, No. 3, December 2023: 335-340

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荷斯坦奶牛体型和乳房测量特征与产奶量之间的关系

体型和乳房测量之间的关联可用于提高产奶量。因此，本研究旨在确定奶农可用来提高荷斯坦奶牛产奶量的乳房测量特征和体型测量特征。研究在南非林波波省路易斯-特里查特的马卡多地方市政当局的林波波奶牛场进行，共使用了 50 头泌乳荷斯坦奶牛。数据分析采用了皮尔逊相关技术。身体测量特征与产奶量之间的结果显示，产奶量与臀高（r = 0.55）呈高度正相关（p ˂0.01），与肩高（r = 0.44）和体长（r = 0.42）呈正相关（p < 0.05）。乳房测量性状与产奶量之间的结果表明，产奶量与挤奶前乳房长度（r = 0.57）、挤奶前乳房周长（r = 0.55）和挤奶后乳房周长（r = 0.51）呈高度正相关，显著性差异（p < 0.01）。51）结果还显示，产奶量与挤奶前乳头直径（r = 0.30）、挤奶前乳头长度（r = 0.31）、挤奶前乳头周长（r = 0.36）和挤奶后乳房长度（0.47）呈显著正相关（p < 0.05）。研究结果表明，所有与产奶量相关的性状都可用于在育种过程中通过选择提高荷斯坦奶牛的产奶量。

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Research in Agriculture Livestock and Fisheries

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6 weeks