Abstract
The aim of the study was to evaluate 16 novel morphometric traits of Landlly piglets at weaning (6 weeks) and post weaning (8 weeks) stage and to predict corresponding body weight from the measurements. A total of 279 Landlly piglets (n = 279, 75% Landrace + 25% Ghurrah crosses) were enrolled in this study. Body length, heart girth, paunch girth, height at wither, height at back, rump width, thigh circumference, neck circumference, and body depth had high correlation coefficients (0.8–0.97) with body weight at both the stages. Stepwise regression showed that body length and heart girth contributed most in prediction of both body weights while height at wither for body weight at 6 weeks and neck circumference for body weight at 8 weeks was the next highest contributing trait. Akaike’s information criterion, Bayesian information criteria, adjusted R2, concordance correlation coefficient, bias correction factor, modeling efficiency, and coefficient of model determination were used to determine the most appropriate model for the prediction of body weight. Model containing body length and heart girth was fitted best to data for prediction of body weight at both weaning and post weaning stage with adjusted R2 values of 0.94 and 0.96, respectively. Hence, 2 different models were proposed for accurately predicting body weight in Landlly pigs at 6 and 8 weeks.
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Data availability
The data supporting the findings of this study are available from the corresponding author upon reasonable request.
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Acknowledgements
The help rendered by Director, Joint Director (Research), and Joint Director (Academic), ICAR-IVRI, Izatnagar, Uttar Pradesh, India, is highly acknowledged. The technical and financial support from ICAR to AICRP (pig) is also duly acknowledged.
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Conceptualization: G.K.G., A.C., and S.P.; methodology: G.KG. and S.P.; statistical analysis: S.P. and A.M.; data collection: S.P. and J.K.; writing (original draft preparation): S.P., J.K., and A.M.; writing (review and editing): G.K.G.; supervision: A.C.
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Panda, S., Gaur, G.K., Chauhan, A. et al. Accurate assessment of body weights using morphometric measurements in Landlly pigs. Trop Anim Health Prod 53, 362 (2021). https://doi.org/10.1007/s11250-021-02803-2
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DOI: https://doi.org/10.1007/s11250-021-02803-2