The Effects of Dietary Protein and Lysine Levels on Broiler Performance, Carcass Characteristics and N Excretion

Isolation, Screening and Evaluation of Methionine Producing Probiotics on Production Performance of Giriraja Chicks

“…The weekly body weight gains (g) varies non significantly between the treatments whereas the cumulative body weight gains varies significantly ( P < 0.05) from 883 g (without methionine producing probiotics) to 955.7 g (with methionine producing probiotics). Same results were observed by Rezaei (11) when fed probiotics in case of broilers. The increase in body weight gains may be due to the better health due to beneficial microbes.…”

“…Several reports showed that supplementation of critical animo acids to broiler diets improved the body weight gain and feed efficiency (11,6). However, chemical production of crystalline methionine is undesirable as it requires hazardous chemicals such as acrolein, methylmercaptan, ammonia, and cyanide.…”

Responses in growth performance and nutrient digestibility to a multi-protease supplementation in amino acid-deficient broiler diets

“…The factors affecting the breast meat of broilers in this study might be attributed to the availability of AA. Supplementation of lysine, methionine, and valine in diets may have a direct effect on breast meat of broilers [51,52]. To increase breast meat in broilers, a study on the improvement of AA digestibility through exogenous protease supplementation is needed.…”

Effect of Feeding Broilers with Three Different Regimens on Performance and Carcass Characteristics

“…The chicks were distributed at the first day of age into 3 treatments: T1 as control fed with a starter ration (1-10) days. grower from (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)day , finisher from (25-42)day , T2 fed with a starter ration from (1-21)day ,a finisher ration from (22-42)day , T3 fed with one grower ration from (1-42) day , the starter ,grower,finisher rations contains 3000,3100,3200 Kcal/kg ME and 23, 21.5 ,19.5 % CP respectively as shown in table (1) according [16] recommendation. Feed and water were provided ad libitum.…”

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This study aims to compare three programs of feeding broiler conducted on 120 Ross 308 chicks at one day of age distributed to three treatments of 4 replicates by 10 birds each. T1 given 3 phase( starter, grower, finisher) rations during (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40)(41)(42)days respectively, T2 given a 2 phase (starter ration from 1-28 days and finisher ration from 29-42 days), T3 given a ( 1 phase ) grower ration from 1-42 day. Feed and water have been given ad libitum .

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