EFFECT OF REPLACEMENT OF MAIZE WITH GRADED LEVELS OF MANGO-SEED KERNEL POWDER ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS AND GUT HEALTH IN GIRIRAJA BIRDS
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Date
2022
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KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, NANDINAGAR, BIDAR – 585 226
Abstract
An experiment was conducted to study the effect of replacement of maize with
graded levels of mango-seed kernel powder on growth performance, gut health and carcass
characteristics in Giriraja birds during 1 to 8 weeks of age. A total of 150 one day old
Giriraja chicks were distributed into five treatment groups with three replicates in each
group and ten chicks in each replicate. Basal diet (T1) prepared following ICAR (2013) and
the experimental diets were prepared by replacing maize with mango-seed kernel powder
at 2.5 per cent in T2, 5 per cent in T3, 7.5 per cent in T4 and 10 per cent in T5, respectively.
The results revealed that non significant (P > 0.05) difference in body weight, feed intake,
feed efficiency and survivability among control and treatment groups. No significant (P >
0.05) improvement on immune response against Newcastle disease and Infectious bursal
disease on the 56th day of the experiment and also non-significant (P > 0.05) difference on
immune organ weight. Serum biochemical parameters viz., total protein, albumin and
globulin showed no significant (P > 0.05) difference among different treatment groups
when compared to control group. The results revealed that non significant (P > 0.05)
difference in E. Coli count and Lactobacillus count compared to control and other
treatment group. Non-significant difference (P > 0.05) in carcass characteristics like
dressing percentage, breast yield, thigh yield, gizzard and also in abdominal fat percent,
drumstick yield and weight of heart, liver and proventriculus was observed. Based on the
above results it was concluded that maize can be replaced with mango-seed kernel powder
up to 10 per cent in a diet without any adverse effects on growth performance, gut health
and carcass characteristics in Giriraja birds.