Comparison on the effectiveness of different chemical treatments of built-up broiler litter on broiler house environment and broiler performance
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This study was conducted to assess the effects of phase feeding on growth performance of broiler chicks.The experimental work consisted of a 7-week trial feeding, in which three different feeding programme.Three experimental diets formulated to contain different levels of metabolizable energy (ME) and crude protein (CP); namely a broiler starter diet containing approximately 3072 Kcal ME/kg and 23.9% crude protein, a grower diet containing 3118 Kcal ME/Kg and 21.8% crude protein, and a finisher diet containing 3200 Kcal ME/kg and 18% crude protein.The results diets not reveal any significant differences in productive parameters, but indicated marked trends in differences among the experimental treatment.These differences showed that the highest feed consumption and live weight gain were attained by the group of birds fed the starter diet throughout the experimental period.The starter diet followed by the finisher diet for four weeks resulted in the lowest total feed consumption, reasonably high body weight gain, lowest feed conversion ratio and highest dressing percentage.It can, however, be considered under the conditions of the present experiment that the three experimental feeding programmes supported similar productive performance of broiler, indicating a slight economic advantage of feeding the starter diet followed by the finisher diet.
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The aim of this study was to determine the selection of bedding material used in broiler birds during the rearing period. Total 72 broiler chicks of IBL-80 were used on a completely randomized design in four treatments of deep litter materials i.e. wheat straw, rice husk, mustard stalk and sand. This study includes four treatments along with three replicates and each replicate consists of 18 birds. Standard feeding and management practices were followed during the experimental period. Differences in average weight gain, feed consumption, feed conversion ratio (FCR) and dressing percentage of wheat straw, rice husk, mustard stalk were significantly higher than sand, while, mortality was higher in sand treatment. The moisture content increased from 8.15 to 40.4% in wheat straw, 11.4 to 45.3% in rice husk, 7.80 to 38.7% in mustard stalk and 2.2 to 17.4% in sand during the study. The cost of litter for rearing one bird in deep litter system was Rs. 1.74, 1.53, 1.45 and 1.68 for sand, mustard stalk, rice straw and wheat straw respectively. It was concluded that any of these three bedding materials (wheat straw, rice husk and mustard stalk) may be used and these are cheap and locally available to the poultry entrepreneurs. Overall rice husk gives excellent results as they have the ability to absorb the moisture and remain dry which is the basic requirement of deep litter system. The manure quality of rice husk is very excellent as compare to other materials.
Husk
Deep litter
Stalk
Litter
Poultry litter
Completely randomized design
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