Calcium and Phosphorus Retention and Bone Characteristics of Broiler Chickens Fed b - Carotene Bio-Fortified Cassava (Manihot esculenta Crantz) Grits Based Diets

Calcium and Phosphorus Retention and Bone Characteristics of Broiler Chickens Fed b - Carotene Bio-Fortified Cassava (Manihot esculenta Crantz) Grits Based Diets

Author by Ogunwole O A

Journal/Publisher: Ibadan Journal Of Agricultural Research

Volume/Edition: 12

Language: English

Pages: 45 - 57

Abstract

Effect of replacing yellow maize with grits from b-carotene bio-fortified whole cassava roots on calcium and phosphorus retention and bone characteristics of broiler chickens was studied in a 42-day experiment. In a completely randomized design, 120 one-day old Arbor Acre broiler chicks were allotted to four dietary treatments each replicated thrice with 10 birds per replicate. Diet 1(control) was the yellow maize based diet in which maize was replaced with cassava grits prepared from -carotene biofortified whole cassava roots (TMS 01/1371) at 25 (diet 2), 50 (diet 3) and 75% (diet 4). On day 21 and 42 respectively, two birds were randomly chosen from each replicate for Ca and P retention study. Blood samples were also collected for serum biochemical analysis while the left and right tibiae were harvested at day 42 for bone morphometric parameters and mineral composition determination. There were no significant differences (P>0.05) in calcium retention levels, serum biochemical indices, bone physical characteristics and mineral content across treatments. However, serum alkaline phosphatase (U/L) of finisher birds fed diet 3 (61.83) was significantly lower (P<0 xss=removed xss=removed xss=removed>  


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