فهرس المقالات fish meal

• حرية الوصول المقاله
  • صفحة الملخص
  • نص كامل
  
  1 - Milk Yield and Blood Metabolite Profile in Late Pregnancy in Lori Ewes Receiving Diets Containing Undegradable Protein Sources
  ر. کوشکی ح. منصوری یاراحمدی م. خالداری ج. فخرائی ک. کرکودی
  An experiment was conducted to investigate the effects of supplementing Lori ewes with rumen-undegradable protein (RUP) in late pregnancy on their performance and that of their lambs. Milk yield and blood metabolite profile were measured. Forty pregnant ewes were used i أکثر

  An experiment was conducted to investigate the effects of supplementing Lori ewes with rumen-undegradable protein (RUP) in late pregnancy on their performance and that of their lambs. Milk yield and blood metabolite profile were measured. Forty pregnant ewes were used in a completely randomized design trial with four treatments: 1) a basal diet (control); 2) with a supplement of 5% fishmeal; 3) with a supplement of 5% extruded soybean and 4) with a supplement combining both sources. Supplementation started 30-days before the estimated parturition date. Dietary inclusion of fish meal significantly improved body weight at lambing compared to the other groups (P<0.05). Lambs of ewes fed diets supplemented with rumen undegradable protein (RUP) were heavier at birth and weaning compared to other groups (P<0.05). Soybeans, of the combined supplement improved the colostrum concentration of IgG in postpartum ewes (P<0.05). Diets containing extruded soybeans resulted in milk with higher milk urea nitrogen content than the control diet (P<0.05). Serum concentration of glucose was significantly decreased in ewes fed diets containing RUP pre-partum (P<0.05), while post-partum glucose concentration was only decreased in ewes fed diets containing fish meal without or with extruded soybeans (P<0.05). Plasma concentration of beta-hydroxybutyric acid (BHBA) and non-esterified fatty acid (NEFA) were significantly decreased in the treated groups compared to the control group in post-partum ewes (P<0.05). تفاصيل المقالة
• حرية الوصول المقاله
  • صفحة الملخص
  • نص كامل
  
  2 - Ileal Digestibility of Amino Acids in Fish Meal-Based Diets for Broiler Starters Using Regression Technique
  آ.اف. آگبولا ای.آ. لیایی
  An experiment was conducted to determine apparent ileal digestibility of crude protein (CP) and amino acids (AA) and digestible CP and AA of fish meal (FM) in 21-d-old broiler chickens using the regression technique. Four diets containing 0, 1, 2, and 3% FM in place of أکثر

  An experiment was conducted to determine apparent ileal digestibility of crude protein (CP) and amino acids (AA) and digestible CP and AA of fish meal (FM) in 21-d-old broiler chickens using the regression technique. Four diets containing 0, 1, 2, and 3% FM in place of cornstarch were formulated with FM as the sole contributor of CP and AAs in the sequential diets. Eighty 14-d-old broiler chicks were weighed, and sorted by body weight and randomly allotted to the experimental diets with 4 replicates per diet and 5 chicks per replicate. Titanium dioxide was added to the diets at the rate of 5 g/kg diet as an indigestible marker. They were fed the experimental diets till d 21 post hatch when they were killed by asphyxiated with CO2 and digesta from the last two-third of ileum collected. The concentrations of CP and AA in the diets increased as dietary FM increased. Apparent digestibility of CP and AA significantly (P<0.05) increased with dietary FM inclusion but with a decrease in the 3% FM diet. The digestibility values of CP, lysine and methionine estimated as slopes of the regression of the amount of CP or AA digested dry matter intake dry matter intake (DMI) at the terminal ileum against CP or AA intake dry matter intake (DMI) were 88.7, 97.2 and 97.0% respectively. The digestible amounts of CP, lysine and methionine of FM were 63.63 g, 5361.04 mg and 1801.45 mg. Results of the study suggest a maximum level of 2% inclusion of FM was adequate for broiler starter chicks as higher levels may induce higher endogenous CP and AA flow and hence reduced digestibility of these nutrients. تفاصيل المقالة
• حرية الوصول المقاله
  • صفحة الملخص
  • نص كامل
  
  3 - بررسی امکان جایگزینی آرد دانه کنجد به جای بخشی از آرد ماهی در تغذیه ماهی قزل‌آلای رنگین کمان (Oncorhynchus mykiss)
  مینا فعال حسین عمادی
  ماهی قزل آلای رنگین کمان ((Oncorhynchus mykiss، عمده ترین ماهی سردآبی پرورشی ایران است و جیره هایی که باعث بهبود کیفیت ماهی و همچنین رشد بیشتر آن گردند، بسیار حائز اهمیت می باشند. در این تحقیق360 عدد ماهی قزل آلای رنگین کمان با میانگین وزن اولیه 04/0±100 گرم در 4 أکثر

  ماهی قزل آلای رنگین کمان ((Oncorhynchus mykiss، عمده ترین ماهی سردآبی پرورشی ایران است و جیره هایی که باعث بهبود کیفیت ماهی و همچنین رشد بیشتر آن گردند، بسیار حائز اهمیت می باشند. در این تحقیق360 عدد ماهی قزل آلای رنگین کمان با میانگین وزن اولیه 04/0±100 گرم در 4 تیمار، با 3 تکرار به مدت 120 روز، درصدهای متفاوت از دانه کنجد را به جای بخشی از آرد ماهی دریافت نمودند. دانه کنجد در3 تیمار به نسبت 15، 20، 25 درصد به جای آرد ماهی همراه جیره شاهد در قالب طرح کاملاً غیر انتخابی استفاده شد. بالاترین میانگین افزایش وزن 08/0±5/281 گرم، افزایش طول 01/0±5/27 سانتی متر، ضریب رشد ویژه 01/0±45/1، ضریب سودمندی پروتئین 01/0±09/2 و بهترین میزان ضریب تبدیل غذائی 01/0±4/1 در تیمار 3 بود. کمترین میانگین افزایش وزن 04/0± 245 گرم، افزایش طول 01/0± 5/26 سانتی متر، ضریب رشد ویژه04/0± 2/1، ضریب سودمندی پروتئین04/0± 45/1 و بالاترین میزان ضریب تبدیل غذائی04/0± 9/1 در جیره شاهد بود. نتایج بدست آمده، بیانگر اختلاف معنی دار بین تیمارها و شاهد بود (01/0>P). جایگزینی آرد دانه کنجد، سبب بهبود شاخص های رشد و عملکرد ماهی قزل آلای رنگین کمان گردید. این نتایج نشان دادند که دانه کنجد می تواند جایگزین مناسبی به جای بخشی از آرد ماهی در جیره های قزل آلای رنگین کمان گردد. تفاصيل المقالة