evaluation the herbal methionine as a substitute of dl-methionine and effect on performance, carcass characteristics and blood metabolites in broiler chickens

نویسندگان

سودابه مرادی

استادیار، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی دانشگاه رازی، کرمانشاه، ایران آرش مرادی

دانشجوی سابق کارشناسی ارشد، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی دانشگاه رازی، کرمانشاه، ایران زهرا زنگنه

دانشجوی سابق کارشناسی ارشد، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی دانشگاه رازی، کرمانشاه، ایران

چکیده

this research was conducted to evaluate the effects of synthetic methionine replacement with herbal methionine (hm) on performance, blood biochemical parameters and carcass characteristics in broiler chicken. a total of 280 8-old ross 308 male chicken were randomly assigned to 7 dietary treatments: control, in which 100% methionine requirement was supplied form dl-methionine, and in treatments 2 to 7, dl-methionine in control was replaced by 20, 40, 50, 60, 80 and 100% hm, respectively. each treatment replicated 4 times (10 birds per each). body weight at 21 and 42 d in broilers fed hm in levels up to 60% and 50% replacement was similar to those fed control diet, respectively. experimental treatments had no significant impact on feed intake during the trial. no differences were observed in carcass percentage and relative weights of abdominal fat, breast, tights, liver, heart, thymus, lien, and bursa among the treatments. herbal methionine replacement had no significant effect on blood total protein, globulin, uric acid and triglyceride content. concentration of serum albumin was significantly elevated in birds fed diets contained 80% hm, whereas cholesterol content in treatment 100% hm and glucose content in treatments 60, 80 and 100% hm significantly reduced in compare to control (p≤0.05). in conclusion, it could be feasible to use herbal methionine in broiler diets as a replacement to supply a part of the methionine requirement without negatively affecting performance or carcass traits.

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منابع مشابه

Bio-efficacy comparison of herbal-methionine and DL-methionine based on performance and blood parameters of broiler chickens

This study was conducted to compare the bio-efficacy of herbal methionine (H-Met) relative to DL-methionine (DL-Met) on 160 “Ross 308” broiler chickens. DL-Met and H-Met were added to the basal diet in eight experimental treatments with three and four concentrations respectively in starter, grower and finisher period. Blood parameters which were measured at 24 and 42 days of age consisted of: s...

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Bioavailability comparison between herbal methionine and DL-methionine on growth performance and immunocompetence basis in broiler chickens

BACKGROUND:Herbal methionine can be compared relative toDl-methionine with evaluation of bioavailability of this source ofmethionine. OBJECTIVES: An experiment was carried out todetermine the relative bioefficacy of herbal methionine (H-Met)®relative to DL-methionine (DL-Met) on performance criteria andimmunocompetence of Met sources in male broilers. Atotal of 160male broilers were fed a Met-d...

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Bio-efficacy comparison of herbal-methionine and DL-methionine based on performance and blood parameters of broiler chickens

This study was conducted to compare the bio-efficacy of herbal methionine (H-Met) relative to DL-methionine (DL-Met) on 160 "Ross 308" broiler chickens. DL-Met and H-Met were added to the basal diet in eight experimental treatments with three and four concentrations respectively in starter, grower and finisher period. Blood parameters which were measured at 24 and 42 days of age consisted of: s...

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bio-efficacy comparison of herbal-methionine and dl-methionine based on performance and blood parameters of broiler chickens

this study was conducted to compare the bio-efficacy of herbal methionine (h-met) relative to dl-methionine (dl-met) on 160 “ross 308” broiler chickens. dl-met and h-met were added to the basal diet in eight experimental treatments with three and four concentrations respectively in starter, grower and finisher period. blood parameters which were measured at 24 and 42 days of age consisted of: s...

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Relative effectiveness of herbal methionine compared to DLmethionine on growth, performance and carcass responses basis in broiler chickens

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bioavailability comparison between herbal methionine and dl-methionine on growth performance and immunocompetence basis in broiler chickens

background:herbal methionine can be compared relative todl-methionine with evaluation of bioavailability of this source ofmethionine. objectives: an experiment was carried out todetermine the relative bioefficacy of herbal methionine (h-met)®relative to dl-methionine (dl-met) on performance criteria andimmunocompetence of met sources in male broilers. atotal of 160male broilers were fed a met-d...

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عنوان ژورنال:
علوم دامی ایران

جلد ۴۷، شماره ۳، صفحات ۳۹۹-۴۰۷

کلمات کلیدی
[ ' t h i s r e s e a r c h w a s c o n d u c t e d t o e v a l u a t e t h e e f f e c t s o f s y n t h e t i c m e t h i o n i n e r e p l a c e m e n t w i t h h e r b a l m e t h i o n i n e ( h m ) o n p e r f o r m a n c e ' , ' b l o o d b i o c h e m i c a l p a r a m e t e r s a n d c a r c a s s c h a r a c t e r i s t i c s i n b r o i l e r c h i c k e n . a t o t a l o f 2 8 0 8 ' , ' o l d r o s s 3 0 8 m a l e c h i c k e n w e r e r a n d o m l y a s s i g n e d t o 7 d i e t a r y t r e a t m e n t s : c o n t r o l ' , ' i n w h i c h 1 0 0 % m e t h i o n i n e r e q u i r e m e n t w a s s u p p l i e d f o r m d l ' , ' m e t h i o n i n e ' , ' a n d i n t r e a t m e n t s 2 t o 7 ' , ' d l ' , ' m e t h i o n i n e i n c o n t r o l w a s r e p l a c e d b y 2 0 ' , 4 0 , 5 0 , 6 0 , ' 8 0 a n d 1 0 0 % h m ' , ' r e s p e c t i v e l y . e a c h t r e a t m e n t r e p l i c a t e d 4 t i m e s ( 1 0 b i r d s p e r e a c h ) . b o d y w e i g h t a t 2 1 a n d 4 2 d i n b r o i l e r s f e d h m i n l e v e l s u p t o 6 0 % a n d 5 0 % r e p l a c e m e n t w a s s i m i l a r t o t h o s e f e d c o n t r o l d i e t ' , ' r e s p e c t i v e l y . e x p e r i m e n t a l t r e a t m e n t s h a d n o s i g n i f i c a n t i m p a c t o n f e e d i n t a k e d u r i n g t h e t r i a l . n o d i f f e r e n c e s w e r e o b s e r v e d i n c a r c a s s p e r c e n t a g e a n d r e l a t i v e w e i g h t s o f a b d o m i n a l f a t ' , ' b r e a s t ' , ' t i g h t s ' , ' l i v e r ' , ' h e a r t ' , ' t h y m u s ' , ' l i e n ' , ' a n d b u r s a a m o n g t h e t r e a t m e n t s . h e r b a l m e t h i o n i n e r e p l a c e m e n t h a d n o s i g n i f i c a n t e f f e c t o n b l o o d t o t a l p r o t e i n ' , ' g l o b u l i n ' , ' u r i c a c i d a n d t r i g l y c e r i d e c o n t e n t . c o n c e n t r a t i o n o f s e r u m a l b u m i n w a s s i g n i f i c a n t l y e l e v a t e d i n b i r d s f e d d i e t s c o n t a i n e d 8 0 % h m ' , ' w h e r e a s c h o l e s t e r o l c o n t e n t i n t r e a t m e n t 1 0 0 % h m a n d g l u c o s e c o n t e n t i n t r e a t m e n t s 6 0 ' , ' 8 0 a n d 1 0 0 % h m s i g n i f i c a n t l y r e d u c e d i n c o m p a r e t o c o n t r o l ( p 0 . 0 5 ) . i n c o n c l u s i o n ' , ' i t c o u l d b e f e a s i b l e t o u s e h e r b a l m e t h i o n i n e i n b r o i l e r d i e t s a s a r e p l a c e m e n t t o s u p p l y a p a r t o f t h e m e t h i o n i n e r e q u i r e m e n t w i t h o u t n e g a t i v e l y a f f e c t i n g p e r f o r m a n c e o r c a r c a s s t r a i t s . ' ]

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