Heat ameliorative effects of rumen protected niacin supplementation in lactating Surti buffaloes

IF 0.2 4区 农林科学 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE Buffalo Bulletin Pub Date : 2022-12-30 DOI:10.56825/bufbu.2022.4144683
S. Chaudhary, V. Singh, T. D. Manat, S. Patel, Navin Babulal Patel
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引用次数: 1

Abstract

Niacin may cause evaporative thermolysis through cutaneous hyperemia, vasodilation, increased sweating rate and decreased skin temperature. It is antilipolytic and can improve metabolic responses. Heat stress ameliorative effects of rumen protected niacin (RPN) supplementation in lactating Surti buffaloes during summer has been investigated in present study. Fourteen lactating Surti buffaloes were divided into two groups (Control-T1, N=7; RPN-T2, N=7). T2 (RPN) group was supplemented with RPN 6 g/ animal/ day in two divided dose for 4 weeks. Meteorological, physiological, sweating rate and skin temperature parameters, milk yield and composition were recorded at weekly intervals. Hematological and biochemical analytes were analyzed at week 1 and 4. RPN supplementation decreased physiological parameters RT, RR and TT; increased (P≤0.05) sweating rate and decreased (P≤0.05) skin surface temperature; increased (P≤0.05) TEC, Hb, HCT, LYM and decreased (P≤0.05) GRAN in hematological profile; increased (P≤0.05) glucose and decreased (P≤0.05) cholesterol, triglyceride, NEFA and BHB among biochemical metabolites and increased (P≤0.05) GSH and SOD and decreased (P≤0.05) LPO in oxidative stress profile. RPN supplementation increased milk yield and milk fat.  It was concluded that supplementation of rumen protected niacin in lactating Surti buffaloes increases sweating rate, reduces oxidative stress and increases milk fat and milk production. 
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哺乳期苏尔特水牛瘤胃保护性烟酸的热改善作用
烟酸可通过皮肤充血、血管舒张、出汗率增加和皮肤温度降低引起蒸发热解。它具有抗脂解作用,可以改善代谢反应。本研究对夏季添加瘤胃保护烟酸(RPN)对泌乳水牛热应激的改善作用进行了研究。将14头泌乳的苏尔蒂水牛分为两组(对照组T1,N=7;RPN-T2,N=7)。T2(RPN)组用RPN 6g/动物/天分两次补充,持续4周。每隔一周记录一次气象、生理、出汗率和皮肤温度参数、产奶量和成分。在第1周和第4周对血液学和生化分析进行分析。RPN的补充降低了生理参数RT、RR和TT;出汗率增加(P≤0.05),皮肤表面温度降低(P≤0.01);血液学指标TEC、Hb、HCT、LYM升高(P≤0.05),GRAN降低(P≤0.01);增加(P≤0.05)葡萄糖和降低(P≤0.05-)胆固醇、甘油三酯、NEFA和BHB,增加(P<0.05)GSH和SOD,降低(P<0.05-)LPO。补充RPN可提高产奶量和乳脂率。结果表明,在泌乳的苏尔蒂水牛中添加瘤胃保护的烟酸可以提高出汗率,减少氧化应激,增加乳脂和产奶量。
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来源期刊
Buffalo Bulletin
Buffalo Bulletin AGRICULTURE, DAIRY & ANIMAL SCIENCE-
CiteScore
0.50
自引率
0.00%
发文量
53
审稿时长
>12 weeks
期刊介绍: Buffalo Bulletin is published quarterly in January-March, April-June, July-September and October-December. Contributions on any aspect of research or development, progress reports of projects and news on buffalo will be considered for publication in the bulletin.
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