پديد آورنده :
سلطاني، ابوالفضل
عنوان :
مقايسه دو روش فراوري دانه جو در دو سطح مختلف بر عملكرد گاوهاي شيري هلشتاين
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان : دانشگاه صنعتي اصفهان ، دانشكده كشاورزي
صفحه شمار :
نه، 73، [II] ص: جدول
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
غلامرضا قرباني ، مسعود عليخاني
استاد مشاور :
عبدالحسين سميع
تاريخ نمايه سازي :
1/5/86
استاد داور :
مهدي كديور ، محمد خوروش
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتال
چكيده انگليسي :
Abstract To study the effect of two barley processing methods on milk production andcomposition eight Holestein cows Multiparous cows were used in 85 25 d in milk Experimental diets were differed in respect to processing methods two methods andbarley level tow levels The treatment consists of 1 35 ground barley mean particlesize about 1mm 2 30 ground barley 3 35 steam rolled barley PI about 70 and 4 30 steam rolled barley The processing index PI is a measure of weight of agiven volume of barley after rolling as percentage of the weight of whole barley Thisexperiment was conducted as duplicated 4 4 Latin square design 21 d periods Forage to concentrate ratio was 38 62 the diets were offered as total mixed ration twicea day Milk yield was higher for cow received steam rolled barley than ground barley P 0 05 more over observed response was increased due to processing by increasingthe level of barley Fat corrected milk and energy corrected milk were higher in steam rolled barley diets P 0 05 It has similar trend as milk production with the increasedlevel of barley Digestibility of DM and OM were trend to increase in steam rolledbarley Fat and protein percentage DM and OM Intake NDF and ADF digestibility ruminal pH and chewing activity were not affected by barley processing and barleylevel P 0 05 The result is represented that replacement of grinding method by steam rolling method increment in milk production FCM and ECM this maybe due toNumerical increase in DM or OM digestibility According to higher difference betweentow processing method with increasing the level of barley it was conducted steam rolled processing increased dairy cow performance specially in higher level of barley
استاد راهنما :
غلامرضا قرباني ، مسعود عليخاني
استاد مشاور :
عبدالحسين سميع
استاد داور :
مهدي كديور ، محمد خوروش
