Reproductive response of crossbred Bos taurus × Bos indicus cows to biostimulation by pre‐pubertal and pubertal teasers

Although the beneficial effect of biostimulation on reproduction has been reported, the influence of selectivity and social factors on the response to biostimulation has not received sufficient research attention in both Bos indicus and Bos indicus influenced cattle. Furthermore, ‘green and cheap’ s...

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Published in:Reproduction in domestic animals 2023-06, Vol.58 (6), p.833-839
Main Authors: Landaeta‐Hernández, Antonio J., Castellanos, Mario, Gil‐Araujo, Marcelo, Peña‐Marcano, María E., Soto‐Belloso, Eleazar, Dios‐Palomares, Rafaela, Rae, D. Owen, Archbald, Louis F., Chenoweth, Peter J.
Format: Article
Language:English
Subjects:
Agricultural economics
Animals
behaviour
Bos taurus
Bos taurus indicus
Cattle
Chi-square test
Cost analysis
Economic analysis
Economic impact
Exposure
Female
Fertilization
Kruskal-Wallis test
Male
male effect
Pregnancy
Reproduction
Reproduction - physiology
Reproductive status
Social factors
tropical livestock
Variance analysis
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Summary:Although the beneficial effect of biostimulation on reproduction has been reported, the influence of selectivity and social factors on the response to biostimulation has not received sufficient research attention in both Bos indicus and Bos indicus influenced cattle. Furthermore, ‘green and cheap’ strategies to improve cattle reproduction are currently in demand while Bos indicus influenced cattle with inferior reproductive performance, and farmers with economic limitations are common in tropical zones. Hence, to assess the reproductive response of crossbred taurus × indicus cows to biostimulation by pre‐pubertal (PPM) or pubertal (PM) teasers males, two trials of 2 years each were conducted. Trial 1 n = 187 cows (Year 1:85 cows exposed to PPM and Year 2:102 cows exposed to PM). Trial 2 n = 196 cows (Year 1:101 cows exposed to PPM and Year 2:95 cows exposed to PM). The effect of exposing cows to PPM and PM on the intervals calving to first service (ICFS), calving to conception (ICC) and economic cost of days open (ECDO) was analysed using Kruskal–Wallis ANOVA and the effect of exposing cows to PPM and to PM on reproductive status at 90 days (RS90) and proportion of cows requiring hormonal protocols (PRH) was compared using χ2 analysis. Both ICFS and ICC were shorter (p 
ISSN:0936-6768
1439-0531
DOI:10.1111/rda.14356