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Performance of weaner rabbits fed a concentrate diet supplemented with pawpaw leaves

Tropical animal health and production(2014)

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摘要
This experiment investigated the performance of weaner rabbits fed concentrate diets supplemented with pawpaw leaves (PPL). Twenty-four male weaner rabbits aged 5 weeks, weighing between 350 and 450 g were used. Concentrate diet was supplemented with PPL in ratios 100:0, 70:30, 50:50 and 30:70. Rabbits were randomly allotted to the four diets in a completely randomised design for 8 weeks, with six rabbits per diet. Results showed that rabbits supplemented with 30 and 50 % PPL had higher ( P < 0.05) dry matter intake to sole concentrate. At 70 % PPL, dry matter intake did not vary with other treatments. Weight gain was higher ( P < 0.05) in rabbits fed 30 and 50 % PPL than sole concentrate. Rabbits fed 70 % PPL had lower ( P < 0.05) weight gain to animals fed 30 % PPL but gained similarly ( P > 0.05) to those fed on 50 % PPL and sole concentrate. Feed conversion ratio improved ( P < 0.05) in animals fed 30, 50 and 70 % PPL. Rabbits fed 30 % PPL had the highest ( P < 0.05) protein efficiency ratio. Rabbits had higher dry matter digestibility ( P < 0.05) with PPL supplementation than sole concentrate while crude protein and fibre digestibility was higher with 30 and 50 % PPL. Haematological and serum parameters in rabbits were unaltered with feeding PPL. It is concluded that weaner rabbits can utilise PPL as supplement to concentrate diet at 30 to 70 % dry matter with positive responses in performance and nutrient digestibility without deleterious effect on the physiological status of the rabbits.
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关键词
Rabbit,Concentrate,Pawpaw leaves,Supplement,Feed conversion,Haematology
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