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Author: ANIL KUMAR, CHITITHOTI × End date: 2009 × Start date: 2007 × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    EFFECT OF DIETARY SUPPLEMENTATION OF ZINCSULPHATE AND ZINC- METHIONINE ON BROILER PERFORMANCE AND THEIR RELATIVE BIOAVAILABILITY
    (SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA, 2007-10) ANIL KUMAR, CHITITHOTI; RAMANA, J. V(MAJOR); RAMA PRASAD, J; MASTHAN REDDY, P
    ABSTRACT: To evaluate the growth performance and immune response in broilers with dietary inclusion of zinc in inorganic and organic form, a study was conducted on two hundred and eighty eight (288) day old male broiler (Vencobb ) chicks fed on maize, soybean meal and fish meal diet with zinc sulphate supplementation at 0 (TI), 20 (Tz), 40 (Tj ), 60 (T4 ), 80 (T5) kd zinc methionine at 20 (T6), 40 (T,), 60 (Ts), 80 (T9) mg/Kg diet. The birds were randomly distributed into 9 treatments with 4 replicates per treatment and 8birds per replicate. All the birds were fed on basal diet without zinc supplementation for one week to deplete the body zinc reserves. From 1-4 weeks the birds were fed on starter diets (23.0% CP and 2877 Kcal of ME/ kg diet) and with finisher diets (20.4% CP and 2943 Kcal of ME/ Kg diet) from 5" to 6fh week. Body weight gain, feed intake and feed efficiency did not show any significant difference among treatments. Even though there was no significant difference (P > 0.05) among the treatments with regard to body weight gain, there was increase in body weight gain during starter phase with increase in zinc supplementation, which ranged from 792 (TI) to 871.44 (Tp) grams. The birds fed on zinc methionine supplementation showed better body weight gain than zinc sulphate supplementation. The feed intake did not show any significant difference (P > 0.05) due to dietary inclusion of zinc and the feed efficiency increased with zinc supplementation in starter phase without significant difference (P > 0.05). The feed efficiency ranged from 1.45 (Tg) to 1.65 (TId,u ring starter phase. There was no significant difference (Fj > 0.05) in ready to cook yield and liver weight with zinc supplementation. The plasma zinc concentration showed a significant difference (P