مسعود دیدارخواه
[ 1 ] - تاثیر تلقیح مصنوعی در زمانهای مختلف، بر عملکرد تولیدمثلی میشهای تالشی
هدف از این تحقیق دستیابی به بهترین زمان تلقیح مصنوعی در میشهای تالشی بود. به همین منظور تعداد 150راس میش تالشی انتخاب و به طور تصادفی به سه گروه مساوی تقسیم شدند. تمام میشها برای همزمانشدن فحلی به مدت 14 روز سیدرگذاری شده و همزمان با سیدربرداری به ازای هر میش 400 واحد بینالمللی PMSG به صورت عضلانی تزریق شد. گروه اول 28 ساعت پس از خروج سیدر (AI28)، گروه دوم 40 ساعت پس از خروج سیدر (AI40) و گ...
[ 2 ] - اثر مکملهای پروبیوتیکی و پریبیوتیکی بر عملکرد تولیدی گاوهای شیری
هدف از اجرای این آزمایش بررسی تأثیر مکملهایپروبیوتیکی و پریبیوتیکی بر عملکرد گاوهای شیری هلشتاین بود. به همین منظور تعداد 40 راس گاو شیری نژاد هلشتاین با تولید شیر روزانه 8/0 ± 33 کیلوگرم و وزن اولیه 40 ± 700 کیلوگرم در چهار گروه در قالب طرح کاملاً تصادفی قرار گرفتند. تیمارهای آزمایشی شامل: 1) گروه شاهد (جیره پایه)، 2) گروه پروبیوتیک (جیره پایه + چهار گرم پروبیوتیک به ازای هر راس در روز)، 3) گ...
[ 3 ] - تأثیر مکملهای پروبیوتیکی و پریبیوتیکی بر عملکرد و سلامتی برههای در حال رشد بلوچی
The aim of this experiment was to determine the effects of different microbial products on the performance and health of Baluchi lambs. 40 Baluchi make lamb with mean age of one year and initial body weight of 30 kg ± 1.5 kg for 90 days were used in a completely randomized design with four treatments and ten replicates. Experimental diets were 1) basal diet (control group), 2) basal diet +0.5 g...
[ 4 ] - بررسی اثرات استفاده از افزودنی پروبیوتیک و پری بیوتیک در شیر بر شاخص های عملکردی و قابلیت هضم مواد مغذی در گوساله های هلشتاین
The purpose of this study was to evaluate the effects of feeding probiotic and peribiotic supplements on milk yield, feed intake, fecal consistency and digestibility of Holstein calves. Treatments included: 1- control group (no additive milk) 2- probiotic group (milk + 2 gr probiotic) 3- prebiotic group (milk + 4 gr peribiotic) 4- synbiotic group (milk + 2 gr probiotic and 4gr perbiotic). Calve...
[ 5 ] - Effects of using Different Additives on Blood Metabolites, Digestibility of Nutrients and Production Performance of Dairy Cows
The purpose of this study was to determine the effects of supplementation of probiotic and peri-biotic supplements in dairy cows on quantitative and qualitative yield of milk, feed intake, digestibility of nutrients, and blood metabolites. Forty Holstein dairy cows with daily milk production of 37 ± 5 kg and initial weight of 700 ± 40 kg were divided into four groups in a completely randomized ...
[ 6 ] - Investigation of Different Levels of Sugar Beet Pulp and Citrus Residue on Productive Performance of Baluchi Lambs
In livestock nutrition management to increase productivity, finding intensive sources of food is a great achievement. .The sub-sectors of the agricultural sector in the feeding of ruminant animals make it possible to use them for the production of valuable products such as meat and milk. The purpose of this study was to investigate the effects of using citrus and sugar beet pulp in diet o...
[ 7 ] - Effect of Different Levels of Soybean Oil, Soybean and Canola Meal on Production Performance, Rumination Activity and Nutrient Digestibility in Holstein Dairy Cows
The purpose of this study was to evaluate the effect of different levels of oil and soybean meal and Canola meal separately and mixed on productive performance, rumination and digestibility of nutrients in Holstein dairy cows. This research was carried out in a completely randomized design on 35 Holstein dairy cattle with 7 treatments and 5 cows with an average weight of 650 ± 40 kg. Treatments...
[ 8 ] - Characterization and Pattern of Culling in Goats
In order to describe the proportion and pattern of culling in commercial goatherds, this survey was carried out in an industrialized goatherd in Torbat-e-Jam, Iran, over a period of 18 years from 1996 to 2013. In total, the data of 3945 goats were used in this study. Finally, out of all samples, 499 (12%) goats were culled. The involuntary culling was performed mainly due to shortage disorders ...
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