Author： Sadeghi Ghorbanali
Publisher： Springer Publishing Company
ISSN： 0049-4747
Source： Tropical Animal Health and Production, Vol.43, Iss.1, 2011-01, pp. : 259-264
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Abstract
The present study was conducted to evaluate the adequacy of applying heat treatment and methionine (Met) supplementation to improve the use of bitter vetch (BV) as a feed ingredient in the growth diet of broilers. A total of 540 Ross-308 chicks were fed various BV-supplemented diets between the ages of 35 and 49 days. The chicks were assigned randomly to one of nine experimental treatments, including raw and cooked bitter vetch seeds at two levels (100 and 200 g/kg) with or without Met (210 mg/kg) supplement and a corn–soybean-based diet as control. Results showed that feeding the 200-g/kg raw BV decreased feed intake by 52% in relation to the control diet (P < 0.05). cooking="" the="" bv="" did="" not="" improve="" the="" feed="" intake.="" met="" supplementation="" of="" 100 g/kg="" raw="" or="" cooked="" bv="" and="" 200 g/kg="" cooked="" bv="" resulted="" to="" a="" similar="" feed="" intake="" in="" the="" control="" group.="" chicks="" fed="" with="" the="" 200 g/kg="" raw="" bv="" had="" an="" average="" depressed="" body="" weight="" gain="" of="" 90%="" in="" comparison="" to="" the="" birds="" fed="" with="" the="" control="" diet.="" the="" combination="" of="" cooking="" and="" met="" supplementation="" of="" this="" diet="" resulted="" to="" a="" similar="" body="" weight="" gain="" to="" the="" control="" diet.="" feeding="" 100 g/kg="" of="" raw="" or="" cooked="" bv="" also="" reduced="">P < 0.05) body="" weight="" gain,="" and="" met="" supplementation="" of="" these="" diets="" resulted="" in="" a="" body="" weight="" gain="" similar="" to="" the="" control="" group.="" chicks="" fed="" with="" 100 g/kg="" of="" raw="" or="" cooked="" bv="" supplemented="" with="" met="" or="" 200 g/kg="" of="" cooked="" bv="" plus="" met="" has="" similar="" feed="" conversion="" ratio="" to="" the="" control="" group.="" in="" conclusion,="" heating="" bv="" seeds="" is="" not="" sufficient="" to="" overcome="" the="" limiting="" effects="" of="" bv="" seeds="" on="" feed="" intake="" and="" weight="" gain,="" and="" that="" met="" supplementation="" does="" provide="" some="" improvement.="" the="" combination="" of="" cooking="" and="" met="" supplementation="" was="" more="" efficient.="">
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