Effect of weaning weight on growth performance, feed efficiency and behavioral characteristics of Holstein-Friesian and Brown Swiss calves

IF 0.2 4区农林科学 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE Revista Colombiana De Ciencias Pecuarias Pub Date : 2022-12-21 DOI:10.17533/udea.rccp.v36n4a1

R. Koçyiğit, V. Özdemir, M. Yanar, R. Aydın, Olcay Güler, A. Diler, M. Aydin

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Abstract

25 Background: Raising healthy calves is one of the main requirements to ensure profitability in 26 the enterprises, and depends highly on the success in the calf feeding and management 27 programs. Objective: To determine the effects of weaning weight on the growth performance, 28 feed efficiency, behavioral traits as well as feeding cost of Holstein Friesian and Brown Swiss 29 calves. Methods: Sixty-seven newborn dairy calves were allocated into four different weaning 30 weight groups [60 kg (n=18), 65 kg (n=19), 70 kg (n=18) and 75 kg (n=12)]. Body weights and 31 measurements were determined at birth, weaning and 4 months of age. Instantaneous sampling 32 method was utilized to collect the behavioral data. Results: Daily weight gain of Brown Swiss 33 calves between weaning and 4 months of age was significantly higher than Holsteins (p<0.05). 34 Furthermore, daily weight gains of calves weaned at 60 kg body weight was significantly 35 (p<0.05) lower than other three groups in the pre-weaning period. Feed efficiency of Holstein 36 calves was significantly higher than Brown Swiss calves in the periods between birth and 4 37 months of age (p<0.05). Growth in the chest depth of the calves in the group weaned at 60 kg 38 body weight was significantly (p<0.05) lower than other groups. Only drinking behavior was 39 notably (p<0.05) higher in the calves weaned at 75 kg body weight in the pre-weaning period. 40 Conclusions: The results of this study suggest that dairy calves can be weaned at 60 kg body 41 weight without any detrimental effect on their performance and feeding cost for 1 kg weight 42 gain is significantly lower compared to advanced weaning weights. 43

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断奶体重对荷斯泰因-弗里西亚和褐瑞犊牛生长性能、饲料效率和行为特性的影响

背景:饲养健康的犊牛是企业确保盈利的主要要求之一，在很大程度上取决于犊牛饲养和管理方案的成功与否。目的:研究断奶体重对荷斯坦弗里西亚和褐瑞29犊牛生长性能、饲料效率、行为性状及饲养成本的影响。方法:将67头新生犊牛分为4个断奶体重组[60 kg (n=18)、65 kg (n=19)、70 kg (n=18)和75 kg (n=12)]。在出生、断奶和4个月大时测定体重和31项测量。采用瞬时采样32法采集行为数据。结果:断奶~ 4月龄布朗瑞33犊牛的日增重显著高于荷斯坦犊牛(p<0.05)。此外，断奶前60 kg断奶犊牛的日增重显著低于其他3组(p<0.05)。出生至437月龄期间，荷斯坦36犊牛的饲料效率显著高于褐瑞犊牛(p<0.05)。60 kg 38体重断奶组犊牛胸深生长显著(p<0.05)低于其他各组。断奶前75 kg体重断奶犊牛仅饮水行为显著(p<0.05)增加。结论:本研究结果表明，犊牛在60 kg体重时断奶对其生产性能没有不利影响，1 kg体重42增重的饲养成本与提前断奶体重相比显著降低。43

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来源期刊

Revista Colombiana De Ciencias Pecuarias AGRICULTURE, DAIRY & ANIMAL SCIENCE-

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The editors of Revista Colombiana de Ciencias Pecuarias (RCCP) welcome the submission of original manuscripts on experimental and clinical studies associated with the broad areas of animal sciences and veterinary medicine as they interface with biochemistry, molecular biology, physiology, pharmacology, toxicology, pathology, microbiology, parasitology, immunology and epidemiology. The scope of the journal includes studies of basic and applied research in animal management and production, feeding and nutrition, reproduction, breeding, genetics, animal welfare and behavior; as well as animal production focussed from biotechnology, soil science, agrostology, silvopastoral systems, livestock economics and the environment. The criteria for acceptance of papers submitted for publication are originality, quality and clarity of the content. Each contribution must be based on original, unpublished research that has not been simultaneously submitted to other journals. All papers will be peer reviewed. All authors bear responsibility for ensuring the integrity and quality of their reported research. It is the author''s responsibility to secure permission to use figures or tables that have been published elsewhere. Contributions may be classified as original research, review, rapid communication, clinical case studies or methodological articles, as well as news/commentaries or letters to the editor. Most review articles are invited by the editor. Authors interested in submitting a review article should contact the corresponding editor. Rapid publication of original manuscripts is a goal of the journal. Manuscripts must be written in English. Each manuscript is considered for publication with the understanding that it has not been simultaneously submitted to any other journal. Upon acceptance for publication, papers are subject to editorial review and revision.