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082 _a636. 088
_bSUB/EF
100 _aSubramanian T
245 _aEffect Of Modified Enviroment During On The Performance Of Growing Pigs
260 _aMannuthy
_bDepartment of Livestock Production Management, College of Veterinary and Animal Sciences
_c1998
502 _bMVSc
520 3 _aAn investigation was carried out to study the environment variables and the effect of modified housing conditions on the physiological norms and growth performance. during the dry season on the large white Yorkshire grower pigs. The modified housing include, Tl - without wallow and sprinkler, T2 - with wallow only, T3 - with sprinkler only and T4 - with wallow and sprinkler as the four treatment groups. The dry season (summer) characterised by higher ambient temperature (maximum temperature - 31.5° to 37°C, m: _ "_LllUm temperature 22.8 to 26.1 °C, mean temperature 27.4°C ._0 31.3°C), comparatively lower relative humidity (mean RH 63.15 to 75.68%) and wind speed (2.75 to 7.8 km/h). The b'~gher range of temperature was sufficient to cause stress OH the performance of the grower pigs as per the literatures. The treatment (T1) without wallow and sprinkler varies significantly (P<O.05) in the body temperature, respiration rate, cardiac rate both in the forenoon and afternoon from the T2, T3 and T4 groups, i. e., Tl has shown more of phys Lo Lc g i.ca L stress reaction than other treatment groups. T4 was fo' n~ to be mo re : comfortable than T1• T2 and T3 were hav:'. 9 no significant difference except in afternoon body temper ture and respiration rate. There were no statistically significant (P<0.05) difference between treatment groups in the fortnightly body weight gain from the first fortnight to upto twelfth '" fortnight. The twelfth fortnight body weight of the treatments Tl, T2, T3 and T4 were 70.833 ± 2.114, 69.333 ± 5.816, 73.333 ± 5.681 and 71.667 ± 5.975. There were also no significant difference in the body length, chest girth and body height among the treatment groups in the fortnightly observations. Though Tl had shown significant (P<0.05) rise of physiological norms that had not reached upto the level of growth retardation. The overall fortnightly rate of gain (kg) and average daily gain (g) of the treatment groups of Tl, T2, T3 and T4 were 5.08 ± 0.60, 4.97 ± 0.54, 5.28 ± 0.56 and 5.17 ± 0.60 and 339 ± 39. 9 , 330 . 9 ± 36. I, 351 . 7 ± 37. 6 and 343. 9 ± 36. 0 . Under restricted feeding regime, T3 was having relatively better feed conversion efficiency and lower cost per kg of live weight pr'oduct.Lon than T4, Tl and T2• The convers ion efficiency of Tl, T2, T3 and T4 were 4.05, 4.15, 3.91 and 3.99 and cost per kg of live weight production 36.16, 37.03, 35.05 and 35.81. Based on the observations and the results suitable method of environment modification during the dry season for grower pigs can be recommended.
700 _aSebastian KS(Guide)
856 _uhttps://krishikosh.egranth.ac.in/handle/1/5810103207
856 _uhttps://krishikosh.egranth.ac.in/displaybitstream?handle=1/5810103207&fileid=cde5471f-3bcc-4f7a-8e54-211024af9815
942 _2ddc
_cTH