Influence of blood metabolites and body condition score at parturition on fertility and milk yield in Holstein cows

IF 0.2 4区农林科学 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Revista Colombiana De Ciencias Pecuarias Pub Date : 2020-11-30 DOI:10.17533/udea.rccp.v34n4a06

Edir Torres, J. García, F. Véliz, C. Leyva, U. Macías-Cruz, Juan D. Hernández-Bustamante, M. Mellado

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引用次数: 2

Abstract

Background: Variables associated with body tissue mobilization place dairy cows at greater risk of reproductive failure. Objective: To investigate the association between blood metabolites and body condition score (BCS) at the beginning of lactation and the reproductive efficiency and milk yield of Holstein cows in a hot environment. Methods: In total, 165 Holstein cows were selected for the study from which blood samples were taken to determine the concentration of various blood metabolites and their association with the reproductive efficiency and milk yield. Results: Cows with serum β-hydroxybutyrate (BHBA) ≤0.8 mmol/L one week postpartum were 3.3 times more likely to become pregnant at first service, and 2.2 times more likely to become pregnant before 80 d postpartum than cows with higher serum BHBA levels. The odds (OR 2.7; 95% CI 1.3–5.4; p<0.01) of a cow getting pregnant at first service were higher in cows with serum creatinine levels higher than 2.0 mg/dL

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分娩时血液代谢物和体况评分对荷斯坦奶牛生育力和产奶量的影响

背景：与身体组织动员相关的变量使奶牛面临更大的繁殖失败风险。目的：探讨高温环境下荷斯坦奶牛泌乳初期血液代谢产物和身体状况评分（BCS）与繁殖效率和产奶量的关系。方法：共选择165头荷斯坦奶牛进行研究，采集血液样本，测定各种血液代谢产物的浓度及其与繁殖效率和产奶量的关系。结果：血清β-羟丁酸（BHBA）≤0.8 mmol/L的奶牛产后一周首次服务时怀孕的可能性是血清BHBA水平较高的奶牛的3.3倍，产后80d前怀孕的可能性为2.2倍。血清肌酐水平高于2.0 mg/dL的奶牛在首次服务时怀孕的几率（OR 2.7；95%CI 1.3–5.4；p<0.01）更高

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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.