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Effect of Body Cooling Systems on Mlik Production and Physiobiochemical Parameters In Lacating Surti Buffaloes During Hot –Dry and Hot Humid Conditions

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Title Effect of Body Cooling Systems on Mlik Production and Physiobiochemical Parameters In Lacating Surti Buffaloes During Hot –Dry and Hot Humid Conditions
 
Creator Patel, Navin Kumar B
 
Contributor Fulsoundar, A.B.
 
Subject livestock, animal husbandry, biological phenomena, yields, economic systems, climatic factors, refrigeration equipment, productivity, organic compounds, irrigation
 
Description Present study was conducted on twenty four (n=24) Surti buffaloes in their mid lactation, maintained at Livestock Research Station, NAU, Navsari. These animals were divided randomly into four treatment group (n=6) based on body cooling systems provided i.e., without body cooling system (control, T1), fogging (T2), showering (T 3), and wallowing (T4). Study was conducted in two phases with hot-dry (April -May, 2012) and hot-humid (June-July, 2012) climate. The important environmental, physiological,
haematobiochemical, nutritional, production and behavioral parameters were studied in this vestigation.
The maximum temperature ( o C) was found significantly (P< 0.05) lower during hot-dry condition under fogging system (T2- 32.28 ± 0.23) than other treatments (T1-33.89 ± 0.29, T3-33.17 ± 0.26 & T4- 33.89± 0.29). Moreover, during hot-humid condition under fogging (T 2- 30.74 ± 0.14) and howering (T 3-31.09 ± 0.16) it was significantly (P< 0.05) lower than control (T 1-31.61 ± 0.19). Overall average maximum inside (Microclimate) temperature ( o C) in T1, T2, T3 and T 4 was 32.75 ± 0.20, 31.51 ± 0.15, 32.13 ± 0.18 and 32.75 ± 0.20, respectively, while that of open (Macroclimate) it was 33.78 ± 0.22. Relative humidity (%) was significantly (P< 0.05) higher in hot-humid as compared to hot-dry condition in respective treatments, (T1-79.09 ± 1.09 Vs 65.53 ± 1.00, T2-85.10 ± 0.86 Vs. 76.84 ± 0.73, T3-80.58 ± 1.05Vs. 67.83 ± 0.95,T4-79.09 ± 1.09 Vs. 65.53 ± 1.00 & open 79.94 ± 1.12 Vs 55.64 ± 1.07). In afternoon (2:30 PM) the per cent THI was found significantly (P< 0.05) lower under fogging (T 2-80.22 ± 0.20) and showering (T 3- 80.38 ± 0.21) as compared to control (T 1-82.43 ± 0.21) during hot-dry condition. Overall result of treatments showed that the afternoon percent THI was
significantly (P< 0.05) lower under showering (T3-80.65 ± 0.17) than other treatments (T1-83.31 ± 0.17, T2-81.94 ± 0.15 & T4-83.31 ± 0.17) and it was significantly (P< 0.05) different within cooling eatments like T2, T3 & T4.
While comparing the means of hot-dry and hot-humid condition rectal temperature in 0 F ( T1- 00.98 ± 0.06 Vs. 100.77 ± 0.05 and T2 - 100.44 ± 0.06 Vs. 100.22 ± 0.07), respiration rate of all treatments (T 1- 41.96 ± 0.35 Vs. 39.88 ± 0.32, T2 - 33.83 ± 0.67 Vs. 32.79 ± 0.36, T3 - 33.33 ± 0.38 VS. 32.54 ± 0.27 & T4-33.63 ± 0.45 Vs. 31.92 ± 0.30) and pulse rate under fogging (T2-64.21 ± 0.33 Vs. 62.96 ± 0.30) was significantly (P< 0.05) higher in the afternoon during hot -humid condition. Overall average sweating rate (gm/m 2 /hr) was found to be 32.71 ± 1.03, 23.23 ± 0.33, 23.31 ± 0.40 and 22.60 ± 0.28 in T1, T2, T3 and T 4 respectively. The sweating rate was significantly higher in control Vs. cooling treatments in both conditions. Overall average skin temperature ( 0 F) measured at all the sites was significantly lower (P
 
Date 2016-05-17T10:36:39Z
2016-05-17T10:36:39Z
2014
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/66004
 
Language en
 
Format application/pdf
 
Publisher NAU