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Kerala Veterinary and Animal Science University, Mannuthy, Thrissur, INDIA

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STUDIES ON FACTORS AFFECTING CALVING INTERVAL IN TWO AND THREE BREED GIR CROSSES

O.K. Oeokar, S.T. Pachpute, V.S. Lawar, B.D. Naikare

Affiliations

¹Department of Animal Science and Dairy Science. Mahatma Phule Krishi Vidyapeeth. Rahuri . 413 722. India

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Cite article:- Oeokar O.K., Pachpute S.T., Lawar V.S., Naikare B.D. (2025). STUDIES ON FACTORS AFFECTING CALVING INTERVAL IN TWO AND THREE BREED GIR CROSSES. Indian Journal of Animal Research. 39(1): 69· 72. doi: .

ABSTRACT

A data on 2040 records of halfbreds (FG and JG) and three breed (FJG, JFG and BFG) Gir
crosses were collected and analysed by least-squares method. The genetic group, period and seasonof calving, parity, age and weight at first calving were considered as sources of variation. The overall least-squares means for calving interval of first five lactations and their pooled were
419.60±4.38, 401.89±7.02, 401.32±5.82, 400.62±8.16, 387.33±12.58 and 403.45±3.45
days, respectively. The calving interval of first five lactations were non-significantly affected by all
the sources of variation except genetic group effect (P

KEYWORDS

REFERENCES

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