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Study On Performance Of Broilers Under Different Intensities (Wattages) Of Light And Illuminated Feeders

by Afzal Sajid, M | Ch. Muhammed Saleem | Dr. Nisar | Muhammed Aslam Bhatti.

Material type: book Book; Format: print ; Literary form: not fiction Publisher: 1988Dissertation note: The study was aimed to find out the effect of different light intensities (wattages) on weight gain, feed consumption feed conversion ratio, dressing percentage, mortality and abnormalities in broiler chicks. 120, one day old chicks were selected and divided randomly in four groups of 30 chicks each. The following light treatments were provided to the chicks of the Groups A,B,C and D. (A) 40 watt bulb at night and natural day light (B) 25 watt bulb at night and natural day light (C) 15 watt bulb at night and natural day light (D) Spot-lighted feeders with 5 watt bulb at night and natural day light. Each chick was given 0.8 sq. ft. floor space. Feeding and watering were provided ad.lib. under indentical managemental conditions. Weekly data starting from 4th week onwards revealed that at 4th week of age there wa non-significant difference in weight gain, feed consumption and feed convertion ratio among the four treatment groups. Significant differences in weight gai and feed conversion ratio and non-significant differences in feed consumption were noticed among the groups at 8th week of age. The results indicate that birds of Group A due to more activities under high wattage gained least weight i.e. 1.6937 Kg and sonsumed more feed i.e. 4.8017 Kg and showed poorest feed conversion ratio i.eo 2.84 as compared to the birds of rest of three groups, i.e. B, C and D. The birds of Group B gained less weight i.e. 1.7343 Kg, consumed more feed i.e. 4.7983 Kg and showed poorer feed conversion ratio i.e. 2.77 than the birds of Group C and D. The birds of Group C gained less weight, i.e. 1.8293 Kg consumed more feed i.e. 4.6733 Kg and showed poor feed conversion ratio i.e. 2.55 when compared with the birds of Group D but showed better performance tha the birds of Group A and B. The birds of Group D gained significantly more weight (P<0.05) i.e. 1.8567 Kg, at low feed intake i.e. 4.6510 Kg and showed significantly better feed conversion ratio (P<0.05) i.e. 2.50 as compared to the birds of Group A and B, as the light intensity (wattage) available to the birds of Group D was very low, hence there was less activity due to less movement, as compared to Group A,B and C. Therefore, the birds of Group D converted more available energy into weight gain and showed best performance as compared to other three groups i.e. A, B and C. Dressing percentage recorded after 8th week of age was 61.85% 62.24% 62.86% and 63.11% for Group A, B, C and D respectively. A non-significant difference was observed among all the groups. There was no mortality throughout the experimental period and apparently no considerable abnormality was observed. Availability: Items available for loan: UVAS Library [Call number: 0016,T] (1).

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2.
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Study On The Effect Of Various Levels Of Dietary Protein In Quail

by Saleem Khan, M | Ch.Muhammed Saleem | Muhameed ASlam Bhatti | Nisar Ahmed.

Material type: book Book; Format: print ; Literary form: not fiction Publisher: 1985Dissertation note: The experiment was conducted on 270 one day old Japanese quail (Coturnix Coturnix Japonica) to study the effect of various levels of dietary protein on the performance of quail chicks. The chicks were randomly divided into five experimental groups, comprising 54 chicks. Each group was further sub-divided into 3 replicates of 18 chicks each. The data collected was statiscally analysed using analysis of variance. Five experimental rations A, B, C, D and E containing 24, 26, 28, 30 and 32 percent protein were prepared respectively. The rations were isocaloric, each containing about me 2800 Kcal/kg. The allotted rations and fresh water were provided to the respective groups ad lib for a period of eight weeks. Brooder temperature was maintained at 95o F during first week of the study. It was lowered at the rate of 5oF every week till it reached 70oF, thereafter it was kept constant. The rest of the managemental and environmental conditions were identical. The results of the study revealed non-significant difference in body weight, feed consumption and feed conversion in all the five groups of experimental chicks. Best feed conversion ratio was observed in chicks fed on ration B and C containing 26 and 28% protein respectively. Chicks fed on ration A, D and E revealed poor feed conversion ratio. Maximum mortality (7.4%) was observed in chicks fed on ration B containing 26% protein. The results indicated that birds fed on 26% protein gave the highest dressing percentage (70.2) while chicks fed on 24% protein gave the minimum dressing percentage (65.1). Best feathering was observed in group B fed on ration containing 26% protein and poorest feathering was in the chicks fed on ration a containing 24% protein. Results of the experiment indicated that chicks fed on 26% protein ration gave the best performance and were quite economical. Conclusion At the end of study, it was found that Japanese quail (Coturnix Coturnix Japonica) can be reared economically on a ration containing 26% protein under local environmental conditions with best weight gain, feed conversion ratio, feather development, dressing percentage and lowest mortality percentage. It is, therefore, recommended that the quail should be reared by using 26% protein in ration. Availability: Items available for loan: UVAS Library [Call number: 0019,T] (1).

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