Browsing by Author "Anand Kumar, S."

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    Comparison of Two different Commercially Available Vitamin-Mineral Premixes in Broiler Diets on Growth Performance and Meat Quality of Broiler Chicke
    (Uva Wellassa University of Sri Lanka, 2018) Weerasinghe, W.M.S.S.; Gunawardana, K.G.U.I.P.; Priyadarshana, S.P.M.; Anand Kumar, S.; De Silva, P.G.J.C.; Nambapana, N.M.N.; Jayasena, D.K.D.D.
    This study was conducted to determine the effectiveness of two different vitaminmineral premixes on performance, meat quality and meat composition of broiler chicken. A total of ninety (n. = 90) day-old male broiler chicks were randomly assigned into three dietary treatments. Each treatment comprised three replicates and ten broiler chicks were included in each replicate. Broilers were allocated to one of the three diets and fed for 42 days in a completely randomized design. The dietary treatments included two different premixes as T 1 (Basal diet + VitaminMineral premix 1) and T2 (Basal diet + Vitamin-Mineral premix 2) and the control group (To) fed with the basal diet only. The highest (p < 0.05) daily body weight gain (56 gbird-iday-I) and the lowest (p < 0.05) feed conversion ratio (1.68) of broiler birds were recorded from the birds fed T, diet. The highest (34%) and the lowest cook loss (33%) (P < 0.05) were recorded from T2 and T, treatments, respectively. The highest (p < 0.05) manganese concentration (0.065 mg/L) and the crude protein percentage (26%) of chicken breast meat were recorded from the birds fed Ti diet and the lowest manganese concentration (0.0213 mg/L) was recorded from the birds fed control diet. The highest (9%) and the lowest (4%) ash percentages (P < 0.05) were recorded from T2 and T1 treatments, respectively. The pH, color, water holding capacity and texture of broiler breast meat were not affected (p > 0.05) by dietary treatments. In conclusion, the supplemental dietary vitamin-mineral premix 1 has made beneficial effects on performance and meat composition of broiler chicken than the dietary vitamin-mineral premix 2.
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    Effect of Different Levels of a Commercially Available Acidifier on Growth Performance, Meat Quality and Escherichia coli Count in the Ileum of Broiler Chicken
    (Uva Wellassa University of Sri Lanka, 2018) Gunawardana, K.G.U.I.P.; Weerasinghe, W.M.S.S.; Priyadarshana, S.P.M.; Anand Kumar, S.; De Silva, P.G.J.C.; Nambapana, N.M.N.; Jayasena, D.K.D.D.
    The study reported herein was conducted to investigate the effect of different levels of an acidifier on performance, meat quality, E. coli count in the ileum and the organ weights of broilers. A total of 120-day-old male broiler chicks were randomly assigned into four treatments. Each treatment comprised three replicates of 10 birds each. Broiler chicks were randomly assigned into three acidifier levels (0.5, 1.0 and 1.5 m1/3L) as T1, Tz, T3 treatments, respectively. The control group (To) treated with normal water only. Broilers were fed with a basal diet for 42 days in a completely randomized design. The highest (p < 0.05) daily body weight gain (67 g) and the lowest (p < 0.05) feed conversion ratio (FCR) (1.48) were recorded from T2 treatment. The lowest (p < 0.05) E. coli count (7.314 log cfu g-') in the ileal digesta content was recorded from T3 treatment. The lowest (p < 0.05) cook loss (31%) was recorded from the control group. The lowest (p < 0.05) lightness (65.7) and the highest (p < 0.05) redness (10.08) of broiler breast meat were recorded from 12 treatment. The highest (p < 0.05) relative weight of the proventriculus (0.39%) was recorded from TO treatment. The highest (p < 0.05) relative weights of the duodenum (0.4%) and the caeca (0.3%) were recorded from TO treatment and the lowest relative weights of the duodenum (0.22%) and the ceca (0.19%) were recoded from T2 treatment. The highest (p < 0.05) relative weights of the heart (0.67%) and the pancreas (0.27%) were recorded from To treatment and the lowest relative weights of the heart (0.42%) and the pancreas (0.09%) were observed from T2 treatment. In conclusion, supplementation of an acidifier in 1 ml/3L concentration has better effects on performance, E. coli count of the ileum and organ weights of broiler chicken. Keywords
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    Effects of Different Levels of Dietary Vitamin Premix (ENHALOR) in Diets on Growth Performance and Meat Quality of Broiler Chicken
    (Uva Wellassa University of Sri Lanka, 2018) Priyadarshana, S.P.M.; Weerasinghe, W.M.S.S.; Gunawardana, K.G.U.I.P.; Macelline, S.P.; Anand Kumar, S.; Ang, L.; Nambapana, N.M.N.; Jayasena, D.K.D.D.
    Poultry industry is a well-established livestock industry in Sri Lanka. The profitability of the industry depends on growth performance and meat quality of broilers and various feed additives are used in the industry. This research was conducted to determine the effect of different level of dietary vitamin premix (ENHALOR) on growth performance and meat quality of broiler chicken. Three hundred sixty-day old (Cobb 500) male broiler chicks were randomly assigned to four dietary treatments and each treatment comprised with 09 replicates. The dietary treatments included 4 concentrations of vitamin premix. The control group (To) of birds received 350 g, 350 g, 300 g ton-' of premix for booster, starter and finisher diets, respectively. The other experimental birds of three treatments were treated with vitamin premix such as T, (330 g, 280 g, 250 g ton-'), T2 (280 g, 250 g, 200 g ton-) and T3 (250 g, 200 g, 180 g ton-) in booster, starter and finisher diets respectively. Average body weight and feed intake were recorded during the experimental period. At the end of day 40 birds were slaughtered and organ weight, carcass weight, meat quality parameters were measured. The highest (p < 0.05) daily weight gain (23 g bird-' day-1), (70 g bird-1day), (73 g bird-'day`) and the lowest (p < 0.05) feed conversion ratio (1.75, 1.5 and 2.06) of broilers were recorded by T2 treatment in booster, starter and finisher phase respectively. The highest (p < 0.05) pH (6.67) of broiler breast meat was recorded from To and the lowest (6.53) pH of broiler breast meat was recorded from T,. In conclusion, the dietary supplementation of vitamin premix (ENHALOR) for broiler booster (280 g ton1), starter (250 g ton-) and finisher (200 g ton-1) diets has better effects on performance of broiler chicken.