Department of Livestock Production and Management, College of Veterinary Science & A.H, Anjora, Chhattisgarh Kamdhenu Vishwavidyalaya, Durg, Chhattisgarh, India.
Department of Animal Genetics & Breeding, College of Veterinary Science & A.H, Anjora, Chhattisgarh Kamdhenu Vishwavidyalaya, Durg, Chhattisgarh, India.
Trop Anim Health Prod. 2022 Mar 25;54(2):141. doi: 10.1007/s11250-022-03148-0.
The experiment was conducted at ABIS Buffalo Dairy Farm, Rajnandgaon, on 300 milking Murrah buffaloes. In buffaloes, the information on body measurements, skin thickness, and their associations with milk yield and interrelationship among them is scanty. Hence, the present study was designed to establish the relationship of skin thickness with milk production in Murrah buffaloes. The data was statistically analyzed using R statistical software. The average skin thickness of the neck, chest, abdomen, rump, hind quarter, udder, and flank regions were 6.27 ± 0.11, 6.13 ± 0.13, 7.28 ± 0.14, 9.78 ± 0.15, 8.00 ± 0.12, 4.14 ± 0.09, and 8.53 ± 0.12 mm, respectively. In this study, the skinfold thickness of the neck and chest regions had a highly significant effect (P < 0.01) on the total lactation milk yield of Murrah buffaloes whereas skin thickness of other regions under study had no significant effect on total lactation milk yield. The results of the study revealed that parity and stage of lactation had a significant effect (P < 0.05) on the skinfold thickness of all the seven regions of Murrah buffalo under investigation. The study indicated that except for the udder region the correlation of all skin thickness with TMY was found to be negative and significant. The genetic correlations between milk yield and skin thickness of the neck, abdomen, and udder were low to medium. The heritability estimate for different skinfold thicknesses and milk yield in this study was low to medium. These results could facilitate further exploration in the use of skinfold thickness for management precision and can be useful in the selection of better animals under field conditions.
该实验在拉贾恩加尔的 ABIS 布法罗奶牛场的 300 头泌乳摩拉水牛身上进行。在水牛中，有关身体测量、皮肤厚度及其与产奶量的关系以及它们之间的相互关系的信息很少。因此，本研究旨在确定摩拉水牛皮肤厚度与产奶量的关系。数据使用 R 统计软件进行统计分析。颈部、胸部、腹部、臀部、后躯、乳房和侧腹区域的平均皮肤厚度分别为 6.27±0.11、6.13±0.13、7.28±0.14、9.78±0.15、8.00±0.12、4.14±0.09 和 8.53±0.12 mm。在这项研究中，颈部和胸部的皮褶厚度对摩拉水牛的总泌乳产奶量有高度显著影响（P<0.01），而研究中的其他区域的皮肤厚度对总泌乳产奶量没有显著影响。研究结果表明，胎次和泌乳阶段对摩拉水牛所有七个区域的皮褶厚度有显著影响（P<0.05）。研究表明，除了乳房区域外，所有七个区域的皮肤厚度与 TMY 的相关性均为负相关且显著。产奶量与颈部、腹部和乳房皮肤厚度之间的遗传相关性为低到中等。本研究中不同皮褶厚度和产奶量的遗传力估计值为低到中等。这些结果可以促进对皮褶厚度在管理精度中的应用的进一步探索，并可以在田间条件下对更好的动物进行选择。
