پديد آورنده :
مكتبي، حسين
عنوان :
اثرات سطح و منبع الياف جيره بر مصرف خوراك آغازين، فراسنجه هاي شكمبه اي، عملكرد و رفتارهاي تغذيه اي گوساله هاي شيرخوار هلشتاين
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
ده، 71ص.: مصور، جدول، نمودار
يادداشت :
ص.ع. به فارسي و انگليسي
استاد راهنما :
محمد خوروش، ابراهيم قاسمي
استاد مشاور :
غلامرضا قرباني، علي صادقي سفيدمزگي
توصيفگر ها :
تفاله چغندرقند
تاريخ نمايه سازي :
10/3/94
استاد داور :
مسعود عليخاني، نفيسه سلطاني زاده
تاريخ ورود اطلاعات :
1396/10/02
چكيده انگليسي :
72Effect of Dietary Neutral Detergent Fiber Source and Levels on Starter Intake Ruminal Fermentation Parameters Performance and Nutritional Behaviour of Holstein Suckling Calves Hossein Maktabi h maktabi@ag iut ac ir January 3 2015 Department of Animal Science Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiSupervisors M Khorvash khorvash@cc iut ac ir E Ghasemi ghasemi@cc iut ac irAbstractThe objective of this experiment was to determine the effects of diffrente sources of starter onperformance rumen fermentation and behavior of sucking dairy calves Fifty two Holstein calves BW 41 7 5 kg mean SD were randomly assigned to a completely randomized design Experimentaltreatments were 1 Control without presence of shredded beet pulp or alfalfa hay in starter 2 startercontaining 10 of alfalfa hay 3 starter containing 10 of shredded beet pulp and 4 starter containing20 of shredded beet pulp Newborn calves after consuming a certain amount of colostrum at the age of3 days were housed in the experimental design and were weaned at 60 days of age Milk feeding methodand levels of milk volumes were the same among treatments 5 L d Body weight and starter intake wererecorded every 10 days during the experiment Results showed that starter intake average daily gain body weight at weaning was greatest P 0 01 for calves consumed 10 beet pulp Claves consumedcontrol starter had the greatest feed efficiency in post weaning period P 0 05 The chest abdomen hipwidth hip height and body length at the end of the experiment were highest P 0 05 for calves fed 10 beet pulp Regarding behavior indeces calves fed 10 alfalfa hay had more P 0 01 chewing lying andnon nutritional behavior than others Dry matter organic matter NDF and ADF digestibility of calvesfed control diet were numerically greater but crude protein digestibility of feed starter containing alfalfahay was greatest P 0 05 Among the treatments Calves fed alfalfa hay had greater rumen pH N ammonia and lower VFA in pre weaning and post weaning than other groups Calves were fed 10 beetpulp had the greatest concentration of acetate in rumen fluid at post weaning period and the lowestconcentration of butyrate at pre weaning period P 0 05 Acetate to propionate ratio was the lowest forcalves fed control starter Fecal score in both pre weanin and post weaning periods was lower for calvesconsumed beet pulp than other groups P 0 05 Calves fed 10 beet pulp in both pre weaning and postweaning periods had the greatest serum glucose concentration and the lowest serum BHBA Betahydroxy butyrice acid concentration P 0 05 Calves consumed 10 alfalfa hay had the greatest bloodurea nitrogen P 0 05 In conclusion presence of 10 beet pulp in feed starter improved performanceand health responses of sucking dairy calves Keywords beet pulp starter fiber calves
استاد راهنما :
محمد خوروش، ابراهيم قاسمي
استاد مشاور :
غلامرضا قرباني، علي صادقي سفيدمزگي
استاد داور :
مسعود عليخاني، نفيسه سلطاني زاده
