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Research (Published online: 06-05-2016)

3. Growth performance, nutrient utilization, and feed efficiency in broilers fed Tithonia diversifolia leaf meal as substitute of conventional feed ingredients in Mizoram - Rajat Buragohain

Veterinary World, 9(5): 444-449



   doi: 10.14202/vetworld.2016.444-449



Rajat Buragohain: Department of Animal Nutrition, College of Veterinary Sciences and Animal Husbandry, Central Agricultural University, Selesih, Aizawl, Mizoram, India;


Received: 14-10-2015, Accepted: 28-03-2016, Published online: 06-05-2016


Corresponding author: Rajat Buragohain, e-mail:

Citation: Buragohain R (2016) Growth performance, nutrient utilization, and feed efficiency in broilers fed Tithonia diversifolia leaf meal as substitute of conventional feed ingredients in Mizoram, Veterinary World, 9(5): 444-449.

Aim: The study was for assessment of growth performance, nutrient utilization, and feed efficiency in broilers fed rations with varying levels of Tithonia diversifolia leaf meal (TDLM) as a substitute of conventional feed ingredients in Mizoram.

Materials and Methods: A total of 180, 1-day-old broiler chicks were randomly divided into six homogeneous groups and fed rations incorporated with TDLM (TDLM at 0% [TDLM-0], 2% [TDLM-2], 4% [TDLM-4], 6% [TDLM-6], 8% [TDLM-8], and 10% [TDLM-10] level as substitute of conventional feed ingredients) for 6 weeks. The chicks were reared in battery brooders for the first 2 weeks, and thereafter, in well-ventilated deep litter house following standard management protocols. Feed and drinking water were provided ad libitum to all the groups throughout the experiment. The daily feed intake and weekly body weight gain were recorded, and a metabolic trial for 3 days was conducted at the end of the 6th week.

Results: Feed consumption decreased for inclusion of TDLM but without any significant differences, except during the 3rd week where it reduced significantly (p<0.05) at and above 6% TDLM in the ration. The average body weight gain decreased significantly (p<0.05) above 6% TDLM inclusion. The average body weights at 7th, 14th, and 21st day of age reduced significantly (p<0.05) from 4% to 10% TDLM inclusion level but was statistically non-significant up to 4% TDLM at 28th, 35th, and 42nd day of age. Body weight at 42nd day of age was 1624.7230.52, 1616.6617.84, 1592.6019.24, 1404.6117.76, 1188.2917.67, and 1054.3318.81 gin TDLM-0, TDLM-2, TDLM-4, TDLM-6, TDLM-8, and TDLM-10, respectively. The digestibility of nutrients decreased with increased inclusion level of TDLM. The digestibility coefficient of dry matter, crude protein, ether extract, and nitrogen free extract were significantly higher in TDLM-0, but crude fiber digestibility was comparable without any significant difference among the groups. Feed conversion ratio (FCR) at 42nd day of age was 2.170.15, 2.170.15, 2.130.13, 2.460.16, 2.660.11, and 3.960.10 for TDLM-0, TDLM-2, TDLM-4, TDLM-6, TDLM-8, and TDLM-10, respectively, was statistically non-significant up to 4% TDLM inclusion level.

Conclusion: Considering the insignificant effects on growth rate, FCR, and body weight at 42nd day of age, it was concluded that TDLM could be incorporated up to 4% level as substitute of the conventional feed ingredients for broilers reared under deep litter system of management in Mizoram.

Keywords: broiler, growth, Mizoram, nutrient digestibility, Tithonia diversifolia leaf meal.

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