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اثر تغذیه پروبیوتیک باکتریایی تجاری بر تولید شیر و متابولیت‌های خونی میش‌های مهربان | ||
| تولیدات دامی | ||
| مقاله 6، دوره 19، شماره 3، آبان 1396، صفحه 585-599 اصل مقاله (749.99 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jap.2017.228046.623163 | ||
| نویسندگان | ||
| شهاب پاینده* 1؛ فرخ کفیل زاده2 | ||
| 1مدرس در دانشگاه رازی، تخصص: تغذیه نشخوارکنندگان/ پروبیوتیک های باکتریایی و قارچی/ ترکیب اسیدهای چرب شیر و ترکیب شیمیایی شیر در گوسفند/ اثر آنزیم های پروتئاز بر روی قابلیت هضم خوراک | ||
| 2عضو هیات علمی، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی، دانشگاه رازی، کرمانشاه، ایران | ||
| چکیده | ||
| به منظور تعیین اثر یک پروبیوتیک باکتریایی تجاری بر تولید و ترکیب شیر و برخی متابولیت‌ها و آنزیم‌های خونی میش‌های شیرده، آزمایشی با استفاده از 16 راس میش نژاد مهربان در قالب یک طرح کاملاً تصادفی با دو تیمار و هشت تکرار انجام شد. میش‌ها در جایگاه‌های انفرادی قرار داده شدند و با جیره‌ای بر پایه 60 درصد علوفه یونجه و 40 درصد کنسانتره به همراه یا بدون پروبیوتیک تغذیه شدند. تولید شیر هر میش به طور هفتگی از هفته یک تا 12 اندازه‌گیری شد و نمونه‌های خون در هفته‌های چهار، هشت و 12 شیردهی در دو نوبت قبل و بعد از خوراک دادن به دست آمد. داده‌ها با استفاده از اندازه گیری‌های تکرار شده در زمان تجزیه آماری شدند. نتایج نشان داد که، پروبیوتیک اثر معنی‌داری بر تولید و ترکیب شیمیایی شیر میش‌های مهربان نداشت، ولی باعث تغییر در روند تولید شیر شد. همچنین پروبیوتیک باعث افزایش معنی‌دار در فعالیت آنزیم آلانین آمینوترانسفراز خون در هفته‌های چهار و هشت شیردهی در قبل و بعد از خوراکدهی (01/0P<) و آنزیم آلکالین فسفاتاز خون در هفته‌های هشت و 12 شیردهی در قبل و بعد از خوراکدهی (01/0P<) شد. فعالیت آنزیم آسپارتات ترانس آمیناز در قبل از خوراکدهی در هفته هشت شیردهی (05/0P<) و قبل و بعد از خوراکدهی هفته 12 شیردهی (01/0P<) افزایش یافت. بر اساس نتایج تحقیق حاضر، اگرچه پروبیوتیک باکتریایی تجاری اثر معنی‌داری بر تولید و ترکیب شیر در کل دوره شیردهی نداشت، ولی روند تولید شیر در طول شیردهی و برخی پارامترهای خونی را تغییر داد. | ||
| کلیدواژه‌ها | ||
| آنزیم‌های خونی؛ پروبیوتیک؛ ترکیب شیمیایی شیر؛ گوسفند؛ لاکتوباسیل‌ها | ||
| عنوان مقاله [English] | ||
| Effect of feeding a commercial bacterial probiotic on milk production and blood metabolites in Mehraban ewes | ||
| نویسندگان [English] | ||
| Shahab payandeh1؛ | ||
| 1Razi university | ||
| 2Animal science, Agriculture college, Razi University, Kermanshah, Iran | ||
| چکیده [English] | ||
| This study was conducted to determine the effect of commercial bacterial probiotic on milk yield and composition, blood metabolites andenzyme activities in lactating ewes based on a completely randomized design (two treatments and eight replicateseach). The ewes were kept in the individual pens and fed a diet based on alfalfa hay (60%) and concentrates (40%) with or without probiotic. Milk production of the individual ewes was measured and sampled weekly for 12 weeks and blood samples were obtained at four, eight and 12 weeks of lactation before and six hours after feeding. Data were analyzed by repeated measurements procedure. No significant differences were observed due to the addition of probiotic in milk production and chemical composition, but it was changed pattern of milk production during lactation period. The probiotic increased (P<0.01) alanine amino transferase and alkaline phosphatase activities both before and after feeding at four, eight and eight, 12 weeks, respectively. Aspartate transaminase activity was also higher before feeding at eight week (P<0.05) and before and after feeding at 12 week (P<0.01) in experimental treatment. Overall, the probiotic has no significant effect on the production and chemical composition of milk of ewes, but could change the pattern of milk production and some parameters of blood plasma in Mehraban ewes during lactation period. | ||
| کلیدواژه‌ها [English] | ||
| Blood enzymes, lactobacilli, Milk chemical composition, Probiotic, sheep | ||
| مراجع | ||
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