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Subject: Poultry Science × Author: SAI CHAITANYA, VADLAMUDI × End date: 2019 × Start date: 2010 ×
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    ThesisItemOpen Access
    EFFECT OF DIETARY SUPPLEMENTATION OF BORON ON THE PERFORMANCE OF JAPANESE QUAIL (Coturnix coturnix japonica)
    (SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517502. (A.P.) INDIA, 2019-11) SAI CHAITANYA, VADLAMUDI; Narendra Nath, D (MAJOR); Naga Raja Kumari, K; Srinivas Kumar, D
    Japanese quails are small domesticated poultry species having weak legs which are more prone to bone breakage and leg problems due to deficiencies of minerals and vitamins. Several studies suggested that mineral boron (B) plays a vital role in bone mineralization especially macro mineral Calcium (Ca) which leads to reduction in the vitamin D deficiency leg problems associated with vitamin D deficiency. A biological trial was conducted to study the effect of dietary supplementation of boron (B) in the form of boric acid (BA) in quail diets on growth performance, carcass traits, serum biochemistry, bone morphometry, bone mineralization and cost economics of Japanese quail. One hundred and fifty day old quail chicks were distributed randomly in to five treatments with three replicates containing ten birds each and fed with five experimental diets T1 (Basal diet), T2 (Basal diet supplemented with 15ppm boric acid), T3 (Basal diet supplemented with 30ppm boric acid), T4 (Basal diet supplemented with 45ppm boric acid) and T5 (Basal diet supplemented with 60ppm boric acid). Basal diets were formulated with locally available feed ingredients like maize, soybean meal, DORB and fish meal as per the nutrient requirements of poultry (NRC, 1994). The mean body weights of Japanese quail fed with boric acid at 0ppm (T1), 15ppm (T2), 30ppm (T3), 45ppm (T4) and 60ppm (T5) levels showed non-significant difference among the treatment groups. Japanese quail fed with diets containing boric acid at 0, 15, 30, 45 and 60ppm levels showed non significant difference in mean cumulative body weight gain among the treatment groups. Mean feed consumption and mean feed efficiency were not affected by dietary supplementation of boric acid. Carcass traits like mean dressing percentage, mean weights of liver, heart and gizzard were not influenced by supplementation of boric acid in the Japanese quail diet. Mean serum calcium levels showed significant (p<0.05) increase among the treatment groups from 0 ppm boric acid (T1) to 60 ppm boric acid (T5). No significant difference was observed in mean serum phosphorus and mean serum alkaline phosphatase levels among the treatment groups. Mean tibia ash, mean tibia calcium and mean tibia phosphorus levels showed non significant difference among the treatment groups but numerical increase was noticed from T1 (0 ppm) to T5 (60 ppm). Mean tibia proximal width, mean tibia distal width, mean tibia mid shaft width, mean tibia weight and mean tibia length had no significant difference among the treatments. But numerical increase was noticed in mean tibia weight from 0 ppm boric acid (T1) to 60 ppm boric acid (T5). Mortality was low irrespective of the dietary treatments. In this study the cause of death in experimental birds was not related to effect of supplementation of boric acid in the diets. The feed cost per Kg live weight gain had no significant difference among the treatment groups. However the birds fed with diet supplemented with 60 ppm boric acid showed lower cost of production per Kg live weight gain.