Effect of Recombinant Bovine Somatotropin (rbST) and Oxytocin on Health Biomarkers, Reproductive Performance and Milk Composition of Nili-Ravi Buffaloes (Bubalus bubalis)

IF 3.8 3区农林科学 Q1 VETERINARY SCIENCES

Pakistan Veterinary Journal Pub Date : 2019-10-01 DOI:10.29261/pakvetj/2019.096

R. Shahid

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引用次数: 2

Abstract

Received: Revised: Accepted: Published online: October 21, 2018 August 04, 2019 August 06, 2019 September 05, 2019 In Pakistan recombinant bovine somatotropin (rbST) is commonly used to increase milk production in dairy animals. That is why this study was conducted to check its effect on health and production in buffaloes. Selected buffaloes were divided into groups (n=10) on the basis of body condition scores (BCS) i.e. (Low) BCS 1-3, (Medium) BCS 4-6 and (High) BCS 7-9, while ten animals served as control. All the groups received rbST (Boostin-250) 35 mg on alternate days and oxytocin 1 ml (10 I.U), starting on day 70 postpartum till the end of lactation. Blood samples were collected from each animal and serum was separated. Milk samples were used for milk composition parameters. The data on reproductive performance parameters was obtained from the farm record. The results indicated that mean serum Alanine aminotransferase (ALT), Aspartate aminotransferase (AST) and total oxidant status (TOS) values were higher (P≤0.01) during summer, while total antioxidant status showed opposite trend. Mean serum AST and TOS values were significantly (P≤0.01) higher in medium and high BCS buffaloes. Percentage of pregnant buffaloes was high in the high BCS group during summer. Mean milk fat contents were higher (P≤0.01) in buffaloes of high BCS while mean milk protein and lactose contents were significantly (P≤0.01) higher in medium BCS buffaloes. Fat, protein, lactose and solid not-fat (SNF) contents were higher during spring than summer. Mean milk lactose and SNF contents were higher (P≤0.01) in high than low and medium milk production groups. In conclusion, milk production was increased during summer and with rbST and decreased with oxytocin during spring, rbST and oxytocin treatments showed adverse effects on general health of Nili-Ravi buffaloes. ©2019 PVJ. All rights reserved

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重组牛生长激素(rbST)和催产素对尼利-拉维水牛健康生物指标、繁殖性能和乳成分的影响

接收:修订:接受:在线发布:2018年10月21日2019年8月04日2019年8月06日2019年9月05日在巴基斯坦，重组牛生长激素(rbST)通常用于提高奶牛的产奶量。这就是为什么要进行这项研究，以检查它对水牛健康和生产的影响。选取水牛按体况评分(BCS)分为(低)BCS 1-3、(中)BCS 4-6、(高)BCS 7-9组(n=10)，对照组10头。各组从产后第70天开始至哺乳期结束，每隔1天给予rbST (boostin250) 35 mg，催产素1 ml (10 iu)。从每只动物身上采集血样并分离血清。牛奶样品用于牛奶成分参数。繁殖性能参数数据来源于养殖场记录。结果表明:夏季平均血清谷丙转氨酶(ALT)、谷草转氨酶(AST)和总氧化状态(TOS)值较高(P≤0.01)，总抗氧化状态呈相反趋势;中、高BCS水牛血清AST和TOS平均值显著(P≤0.01)升高。在夏季，高BCS组的怀孕水牛百分比很高。高BCS水牛的平均乳脂含量较高(P≤0.01)，中等BCS水牛的平均乳蛋白和乳糖含量极显著(P≤0.01)高于高BCS水牛。脂肪、蛋白质、乳糖和固体不脂肪(SNF)含量春季高于夏季。高产奶量组平均乳糖和SNF含量高于低、中产奶量组(P≤0.01)。综上所述，夏季和rbST处理能提高奶牛的产奶量，而春季催产素处理能降低产奶量，rbST和催产素处理对Nili-Ravi水牛的总体健康状况有不利影响。©2019 PVJ。版权所有

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来源期刊

Pakistan Veterinary Journal 兽医-兽医学

CiteScore

4.20

自引率

13.00%

发文量

审稿时长

4-8 weeks

期刊介绍： The Pakistan Veterinary Journal (Pak Vet J), a quarterly publication, is being published regularly since 1981 by the Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan. It publishes original research manuscripts and review articles on health and diseases of animals including its various aspects like pathology, microbiology, pharmacology, parasitology and its treatment. The “Pak Vet J” (www.pvj.com.pk) is included in Science Citation Index Expended and has got 1.217 impact factor in JCR 2017. Among Veterinary Science Journals of the world (136), “Pak Vet J” has been i) ranked at 75th position and ii) placed Q2 in Quartile in Category. The journal is read, abstracted and indexed internationally.