Abstract
The trail related to the effect of restricted diets on the growth and meat composition of broilers was
conducted at Department of Animal Nutrition, Sindh Agriculture University Tandojam, Pakistan. Fifty
poultry feed ingredients were randomly selected and 30 least cost ingredients were purchased and
analyzed for proximate analysis. After proximate analysis, three rations were formulated from 14
ingredients designated as Ration 1 (17% crude proteins and 2900 Metabolizable energy). Ration 2
(21% CP and 2800 ME) and Ration 3 (24% CP and 2700 ME). After ration formulation, 45 day-old
chicks were purchased and reared for each ration for six weeks. Chicks of each ration were further
divided in three groups i-e A, B and C having 15 chicks in each. The chicks of each group were also
divided in three replicates having 05 chicks. Group A was reared as control, group B was restricted to
feed for 04 hours in brooding to rearing stage and group C was restricted to feed for 08 hours daily in
brooding to rearing stage. Results revealed the initial weight of a day-old broilers was non-significant
(P<0.05). Significantly higher (P>0.05) feed consumption (2218.74 g) was observed in group B2, water
consumption 7095.3 ml , and final body weight 1134.76 g in B3 , weight gain 1086.61 g (B3), carcass
weight 716 g (B3), dressing % 63.10% (B3), FCR 1.853 (B3). Significant (P>0.05) maximum meat
moisture content 72.87% was noted in group B3, meat protein 13.77% in B3, fat 4.78% in C1, and ash
1.85% in B2. The better per bird profit gain of Rs. 89.71 was recorded in B2. It was concluded that the
broilers can be restricted to their feed (containing 24% CP and 2700 ME) for 04 hours daily in brooding
to rearing period for better growth and meat composition but per bird profit margin was low due to high
cost of production therefore, broilers can be reared economically on Ration 2 containing 21% CP and
2800 ME and their feed can be restricted for 04 hours daily.
A. Memon , G. M. Baloch, M. Khaskheli , T. A. Qureshi. (2020) EFFECT OF RESTRICTED DIETS ON THE GROWTH AND MEAT COMPOSITION OF BROILERS, Pakistan Journal of Agriculture, Agriculture Engineering & Veterinary Sciences, Volume 36, Issue 1.
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