Association Between Meteorological Variables and Milk Yield Traits in Crossbred Dairy Cattle under Subtropical Climate

Authors

  • Tassew Mohammed Ali Dept. of Animal Production and Technology, College of Agriculture, Woldia University, Woldia, P.O. Box 400, Ethiopia
  • Raman Narang Dept. of Animal Genetics and Breeding, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab (141 004), India
  • P. P. Dubey Dept. of Animal Genetics and Breeding, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab (141 004), India https://orcid.org/0000-0001-8381-7419
  • Simarjeet Kaur Dept. of Animal Genetics and Breeding, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab (141 004), India
  • D. S. Malik Dept. of Livestock Production and Management, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab (141 004), India
  • Sarabjot Kaur Sandhu Dept. of Climate Change and Agricultural Meteorology, Punjab Agricultural University, Ludhiana, Punjab (141 004), India

Keywords:

Crossbred dairy cattle, milk yield traits, meteorological variables

Abstract

The study was conducted on crossbred cattle maintained at Directorate Livestock Farms (DLF) of Guru Angad Dev Veterinary and Animal Sciences University (GADVASU) in Ludhiana, Punjab, India to assess the influences of meteorological variables on milk yield traits of crossbred cattle. Data on milk yield traits and the meteorological variables were collected for a period from 1991–2018. General Linear Model was applied to assess the influences of meteorological variables and other fixed factors on daily milk yield. Simple linear regression models were fitted to analyze the effect of meteorological variables on other milk yield traits. The results showed that the effects of Tem, THI and ATHI on DMY were found to be significant (p<0.01). The effects of Tem, THI and ATHI on TLMY, 305_DMY, LL and DPY were negative and non-significant, while negative and significant (p<0.01) on PY. The average 305_DMY decreased by 8.68, 5.72 and 5.59 kg per a unit increase in Tem, THI, and ATHI values, respectively. The average LL also showed a decline by 0.11, 0.11, and 0.13 days for per unit rise Tem, THI, and ATI correspondingly. From April-October, climate variables increased beyond the thermal thresholds (21oC for Tem, 75% for Hum, 68 units for THI, 316 W/m2 for SR and 71 units for ATHI) for daily milk production in crossbred dairy cattle. The animals experienced heat stress for seven months (April-October) leads to reduction of milk production and may be controlled by heat stress management at the farm.

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Published

2022-05-26

How to Cite

1.
Ali TM, Narang R, Dubey PP, Kaur S, Malik DS, Sandhu SK. Association Between Meteorological Variables and Milk Yield Traits in Crossbred Dairy Cattle under Subtropical Climate. IJBSM [Internet]. 2022 May 26 [cited 2024 May 20];13(May, 5):430-7. Available from: https://ojs.pphouse.org/index.php/IJBSM/article/view/4234

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