Effect of different heat ameliorating measures on the micro-climate of buffalo sheds during hot-dry summer

K K VERMA; MUKESH SINGH; TRIVENI DUTT; G K GAUR; B H M PATEL; P K BHARTI; U S NARWARIA; M R VERMA; J K CHAUDHARY

doi:10.56093/ijans.v86i6.59235

Authors

K K VERMA Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
MUKESH SINGH Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
TRIVENI DUTT Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
G K GAUR Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
B H M PATEL Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
P K BHARTI Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
U S NARWARIA Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
M R VERMA Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
J K CHAUDHARY Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India

https://doi.org/10.56093/ijans.v86i6.59235

Keywords:

Cooling jacket, Forced ventilation, Heat stress, Murrah buffalo heifer, THI

Abstract

Present investigation studied the effect of heat ameliorating measures on micro-climate of sheds of Murrah buffalo heifers during hot dry summer. Buffalo heifers (24) were categorised in 4 groups (6 in each), viz. control (T₀), cooling jacket (T₁), cooling jacket+forced ventilation (T₂) and sprinklers+forced ventilation (T₃). Daily minimum and maximum and dry and wet bulb temperatures of both micro and macro-climate were measured at 10.00 AM and 2.00 PM of Indian Standard Time (IST) by using maximum and minimum and dry and wet bulb thermometer, respectively. Significant reduction in maximum temperature was observed in T₃, T₂ and T₁ groups than control group. However, significantly higher minimum temperature was found in T₀ group as compared to T3, T₂ and T₁ respectively. Relative humidity (RH) was significantly lower in T₃ and T₂ (65.67±0.48 and 65.97±0.53%, respectively) than T₀ (68.51±0.56%) group at 10.00 AM whereas, at 2.00 PM significant reduction in RH was observed in T₃, and T₂ (55.31±0.51 and 57.20±0.62) than T₀ (58.96±0.63%) group. During peak hot periods, significantly lower Temperature humidity Index (THI) was found in T₃, T₂ and T₁ than T₀ group. However, at 10.00 AM significant reduction in THI was found in T₃ and T₂ groups than T₀ group. The findings of the present study indicated that forced ventilation along with sprinklers and cooling jacket had helped in protecting the animals from thermal stress under loose housing system during hot-dry summer.

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