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Review (Published online: 12-03-2016)

7. Impact of heat stress on health and performance of dairy animals: A review - Ramendra Das, Lalrengpuii Sailo, Nishant Verma, Pranay Bharti, Jnyanashree Saikia, Imtiwati and Rakesh Kumar

Veterinary World, 9(3): 260-268



   doi: 10.14202/vetworld.2016.260-268



Ramendra Das: Department of Animal Genetics & Breeding, Indian Council of Agricultural Research - National Dairy Research Institute, Karnal - 132 001, Haryana, India;

Lalrengpuii Sailo: Division of Animal Genetics, Indian Council of Agricultural Research - Indian Veterinary Research Institute, Izatnagar - 243 122, Uttar Pradesh, India;

Nishant Verma: Department of Animal Genetics & Breeding, Indian Council of Agricultural Research - National Dairy Research Institute, Karnal - 132 001, Haryana, India;

Pranay Bharti: Department of Livestock Production & Management, Indian Council of Agricultural Research - National Dairy Research Institute, Karnal - 132 001, Haryana, India;

Jnyanashree Saikia: Department of Animal Genetics & Breeding, College of Veterinary Sciences & Animal Husbandry, Agartala - 799 008, Tripura, India;

Imtiwati: Department of Livestock Production & Management, College of Veterinary Sciences & Animal Husbandry, Agartala - 799 008, Tripura, India;

Rakesh Kumar: Department of Animal Genetics & Breeding, Indian Council of Agricultural Research - National Dairy Research Institute, Karnal - 132 001, Haryana, India;


Received: 21-09-2015, Revised: 04-01-2016, Accepted: 15-01-2016, Published online: 12-03-2016


Corresponding author: Ramendra Das, e-mail:

Citation: Das R, Sailo L, Verma N, Bharti P, Saikia J, Imtiwati, Kumar R (2016) Impact of heat stress on health and performance of dairy animals: A review, Veterinary World, 9(3): 260-268.

Sustainability in livestock production system is largely affected by climate change. An imbalance between metabolic heat production inside the animal body and its dissipation to the surroundings results to heat stress (HS) under high air temperature and humid climates. The foremost reaction of animals under thermal weather is increases in respiration rate, rectal temperature and heart rate. It directly affect feed intake thereby, reduces growth rate, milk yield, reproductive performance, and even death in extreme cases. Dairy breeds are typically more sensitive to HS than meat breeds, and higher producing animals are, furthermore, susceptible since they generates more metabolic heat. HS suppresses the immune and endocrine system thereby enhances susceptibility of an animal to various diseases. Hence, sustainable dairy farming remains a vast challenge in these changing climatic conditions globally.

Keywords: amelioration, health, heat stress, production, reproduction.

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