پديد آورنده :
زارعي شمس آبادي، سهيلا
عنوان :
تاثير تعداد شكم زايش و فصل بر تركيب آغوز گاوي و مديريت آغوز در گاوداري هاي شيري اصفهان
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
يازده، 53ص.: مصور، جدول، نمودار
يادداشت :
ص.ع. به فارسي و انگليسي
استاد راهنما :
غلامرضا قرباني، محمد خوروش
استاد مشاور :
احمد رياسي، اميرحسين مهدوي
توصيفگر ها :
فصل زايش و حجم آغوز
تاريخ نمايه سازي :
17/7/91
استاد داور :
حميدرضا رحماني، علي نصيرپور
تاريخ ورود اطلاعات :
1396/09/19
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Effect of Parity and Season on Bovine Colostrum Composition and Colostrum Management Practices on Isfahan Dairy Farms Soheila Zareie Shamsabadi S Zareie@ag iut ac ir February 2012 Department of Animal Science Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi G R Ghorbani Prof Supervisor G R Ghorbani@cc iut ac irAbstractThe objectives of this study were to investigate colostrum quality in Isfahan commercial dairy farms andto determine the effects of season of calving and parity of dam on colostral composition Colostrumsamples from Holstein cows were collected from 11 dairy farms between January 2011 and November2012 Colostrum samples from 365 cows were analyzed for concentrations of IgG IgM total solid fat protein lactose Ca and P The concentration of IgG and IgM were determined by ELISA kit E10 118and 101 Bethyl Laboratories Montgomery TX Data were analyzed by using SAS statistical softwareand the GLM procedure The IgG and IgM contents were 35 83 and 5 82 mg ml respectively Percentageof total solid fat protein and lactose were 27 24 4 75 18 5 and 2 respectively Concentrations of Ca andP were 2691 73 and 1937 32 mg kg respectively Volume of first milking colostrums did not have anysignificant effect on colostral composition Season of calving significantly influenced the Igconcentration Colostral IgG and IgM concentrations were significantly higher in the winter The contentof IgG in the fall and spring did not significantly differ and was in the lowest level The concentration ofIgG was intermediate in the summer Season of calving did have a significant effect on concentrations offat The lowest value of fat content was in the spring and fall In addition the amount of Ca and P wasinfluence by season and had the highest value for both concentrations of Ca and P in the summer season Concentrations of IgG and IgM colostral did not changed significantly by parity of dam However therewere an upward tendency for Ig concentration with increasing parity cows in their forth parity did havesignificantly lower IgG and IgM concentrations than others Decreasing trend for concentration of Ca andP found with increasing parity The amount of Ca and P almost were constant after third parity Themanagement practices among farms seem to be theoretically acceptable but a lot needs to do practicalwhatever exist in theatrical words Furthermore what is worth noticing fact is that consider the colostrumof 1st parity more In a word taking into account of all these factors we may reach the conclusion thatseason of calving is more effective than parity of dam on Ig concentration Regard to that only 18 6 ofour samples had more than 50 mg ml IgG highly recommend that Isfahan industrial dairy farms to expandtheir endeavors in order to consider quality of colostrum by seasonal effect more than past to guaranty thefuture and health of replacement heifers and farms Key Words Colostrum parity season of calving volume of colostrum
استاد راهنما :
غلامرضا قرباني، محمد خوروش
استاد مشاور :
احمد رياسي، اميرحسين مهدوي
استاد داور :
حميدرضا رحماني، علي نصيرپور
