|
|
Veterinary Research Forum، جلد ۵، شماره ۲، صفحات ۸۱-۸۷
|
|
|
| عنوان فارسی |
|
|
| چکیده فارسی مقاله |
|
|
| کلیدواژه‌های فارسی مقاله |
|
|
| عنوان انگلیسی |
Bio-efficacy comparison of herbal-methionine and DL-methionine based on performance and blood parameters of broiler chickens |
|
| چکیده انگلیسی مقاله |
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: serum proteins (total protein, albumin and globulin), serum uric acid, serum fats (low density lipoprotein, high density lipoprotein, triglyceride and cholesterol) and serum enzymes (alanine amino transaminase and aspartate amino transaminase). Completely randomized design, multi-exponential and multilinear regressions were used to determine bio-efficacy of H-Met in terms of performance and blood parameters of broilers. The results showed that supplemented methionine (Met) sources had no significant effect on blood parameters at 24 day of age. At 42 day of age the amounts of globulin and serum high density lipoprotein (HDL) increased with supplemented Met, (p < 0.05). Regression analysis revealed that H-Met was 55.00, 71.00, 78.00, 47.00, 58.00 and 73.00% as efficacious as DL-Met for body weight gain, feed intake, feed conversion ratio, albumin, globulin and high density lipoprotein criteria, respectively. The average of bio-efficacy of H-Met compared to DL-Met was 67.00% and 59.00% on average across performance criteria and blood criteria respectively and was 63.00% across these two criteria tested. The results of the present study indicated that H-Met can be administered as a new and a natural source of Met in poultry industry. |
|
| کلیدواژه‌های انگلیسی مقاله |
|
|
| نویسندگان مقاله |
شیلا هادی نیا |
department of animal science, agriculture and natural resources pardis, university of tehran, karaj, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)
محمود شیوازاد |
department of animal science, agriculture and natural resources pardis, university of tehran, karaj, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)
حسین مروج |
department of animal science, agriculture and natural resources pardis, university of tehran, karaj, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)
مجید الهیاری shahrasb | alahyari shahrasb
department of animal science, agriculture and natural resources pardis, university of tehran, karaj, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)
محمد مهدی نبی | mehdi nabi
department of animal science, agriculture and natural resources pardis, university of tehran, karaj, iran
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)
|
|
| نشانی اینترنتی |
http://vrf.iranjournals.ir/article_5390_d09be1e147a340aaf80788bb2949b69c.pdf |
| فایل مقاله |
فایلی برای مقاله ذخیره نشده است |
| کد مقاله (doi) |
|
| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
|
| نوع مقاله منتشر شده |
|
|
|
|
برگشت به:
صفحه اول پایگاه |
نسخه مرتبط |
نشریه مرتبط |
فهرست نشریات
|