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Effect of herbal Ca and phytase in feed by replacing di calcium phosphate on the performance of commercial broiler chicken

Department of Animal Husbandry & Dairying
Udai Pratap Autonomous College, Varanasi - 221002 (U.P.)


A 42-day trial using 280 Vencob broiler chicks was conducted to study the effect of inclusion of herbal Ca and phytase in the broiler feed by replacing di calcium phosphate (DCP) on the performance. The chicks were randomly divided into seven treatment groups, each treatment consisting of two replicates. A corn Soya based experimental diets prepared for both starter and finisher to meet nutrient requirements as per NRC (1994) recommendation. The experimental groups were Control (C)-was offered basal diets, Treatment-1 (T 1) provided 50% DCP deficient diet compared to control, Treatmen-2 (T 2) was offered diet of T 1 with Herbal Ca (Mega Cal, marketed by Indian Research and Supply Co. Ltd.) @ 1 kg/ton, Treatment-3 (T 3)- offered diet of T 1 with phytase @ 0.5 kg/ton, Treatment-4 (T 4)- offered diet of T 1 with mega Cal (1 kg/ton) and phytase (0.5 kg/ton), Treatment-5 (T 5) provide mega Cal 0.5 kg/ton and Treatment-6 (T 6) provided mega Cal (0.5 kg/ton) and phytase (0.5 kg/ton). All the diets were raised in battery brooders with identical condition of feeding and managements. Cumulative body weight gain of chicks at 6 weeks indicated significantly (P<0.05) maximum gain in bird assigned T 5 (2237.7 ± 7.42) diet, while it was minimum in T 1 (2114.8 ± 8.52) diet. Feed conversion ratio was minimum in T 2 (1.80 ± 0.004) and highest in (1.89 ± 0.003). Feed consumption was significantly varied between the treatment groups. Feed consumption was higher in T 5 (4041.2 ± 36.09) and lower in T 6 (3924.4 ± 10.69). Statistical analysis revealed that body wt. on 6 th week was significantly (P<0.01) higher in T 5 (2237.7 ± 7.42) followed by T 2, T 6, T 3, C, T 4 and lowest in T 1 (2114.8 ± 8.52). The average feed consumption per bird of experimental groups on 6 th week was found lowest (P<0.05) in T-2 (3897.0 ± 21.93) groups and differ non-significantly with T 1. T 5 (4041.2 ± 36.09) showed highest consumption followed by T 6, T 3, C, T 4, T 1 and T 2. The FCR data of the experimental groups on 6 th weeks of age was best i n T 2 (1.80 ± 0.004) group and differed significantly (P<0.01) with rest of the treatment group followed by T 5, T 6, C, T 4, T 3 and T 1. Considering the results obtained in this experiment it can be concluded that for substituting 50% of the total DCP, Herbal Calcium (mega Cal ) @ 0.1 % in the feed can well be used for better economic and nutritional performance in broiler chicken production.

Source : IPSACON-2005
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