Open Access
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; ramenvets@gmail.com
Lalrengpuii Sailo:
Division of Animal Genetics, Indian Council of Agricultural
Research - Indian Veterinary Research Institute, Izatnagar - 243
122, Uttar Pradesh, India; lrp.sailo@gmail.com
Nishant Verma:
Department of Animal Genetics & Breeding, Indian Council of
Agricultural Research - National Dairy Research Institute,
Karnal - 132 001, Haryana, India; nish99verma@gmail.com
Pranay Bharti:
Department of Livestock Production & Management, Indian Council
of Agricultural Research - National Dairy Research Institute,
Karnal - 132 001, Haryana, India; dr12pranay@gmail.com
Jnyanashree Saikia:
Department of Animal Genetics & Breeding, College of Veterinary
Sciences & Animal Husbandry, Agartala - 799 008, Tripura, India;
gsaikia123@gmail.com
Imtiwati:
Department of Livestock Production & Management, College of
Veterinary Sciences & Animal Husbandry, Agartala - 799 008,
Tripura, India; imtiba777@gmail.com
Rakesh Kumar:
Department of Animal Genetics & Breeding, Indian Council of
Agricultural Research - National Dairy Research Institute,
Karnal - 132 001, Haryana, India; rakesh05vet@gmail.com
Received: 21-09-2015, Revised: 04-01-2016, Accepted: 15-01-2016,
Published online: 12-03-2016
Corresponding author:
Ramendra Das, e-mail: ramenvets@gmail.com
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.
Abstract
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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