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اثرات استفاده ازپسماندکشمش بر عملکرد، فراسنجه‌های خونی و اسیدهای چرب فرار مایع شکمبه بره‌های نر بلوچی | ||
| علوم دامی | ||
| مقاله 18، دوره 31، شماره 120، آذر 1397، صفحه 229-240 اصل مقاله (1.08 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/asj.2018.116694.1589 | ||
| نویسندگان | ||
| علی اصغر یعقوبی1؛ عبدالمنصور طهماسبی* 2؛ عباسعلی ناصریان3؛ رضا ولی زاده2؛ سید علیرضا وکیلی4 | ||
| 1دانشجوی دکتری پردیس بین الملل دانشگاه فردوسی مشهد | ||
| 2استاد گروه علوم دامی دانشکده کشاورزی دانشگاه فردوسی مشهد | ||
| 3عضو هیأت علمی گروه علوم دامی دانشکده کشاورزی مشهد- ایران | ||
| 4دانشیار گروه علوم دامی دانشکده کشاورزی دانشگاه فردوسی مشهد | ||
| چکیده | ||
| در این پژوهش اثرات استفاده از پسماند کشمش بر عملکرد، برخی فراسنجه‌های خونی و اسیدهای چرب فرار مایع شکمبه بررسی شد. تعداد 15 رأس برۀ نر بلوچی (میانگین وزن 67/0± 15/21 کیلوگرم) در قالب طرح کاملاً تصادفی در سه تیمار قرار گرفتند. تیمارهای آزمایشی شامل: 1) شاهد (حاوی 40 درصد یونجه و فاقد پسماند کشمش)، 2) جایگزینی50 درصد یونجه با پسماند کشمش و 3) جایگزینی 100 درصد یونجه با پسماند کشمش بودند. استفاده از پسماند کشمش در جیره (تیمارهای 2 و3)، باعث افزایش وزن روزانۀ بره‌های پرواری در مقایسه با تیمار شاهد شد (05/0>P). افزایش سطح پسماند کشمش در جیره، پروتئین کل سرم را در دورۀ اول آزمایش (14 تا 28 روز) کاهش داد (05/0>P) ولی سایر فراسنجه‌های خونی این دوره ( از قبیل گلوکز، کلسترول، آلانین آمینوترانسفراز، تری‌گلیسرید و نیتروژن اوره‌ای) تحت تأثیر تیمارهای آزمایشی قرار نگرفتند (05/0<P). همچنین سطح تری‌گلیسرید، آلانین آمینوترانسفراز، پروتئین کل سرم و نیتروژن اوره‌ای در دورۀ دوم آزمایش (42 تا 56 روز) در مقایسه با تیمار شاهد کاهش نشان داد (05/0>P). کمترین غلظت اسید استیک و والریک اسید در دورۀ اول آزمایش، مربوط به تیمار3 بود، در حالی‌که بیشترین مقدار اسید والریک و اسید ایزو‌والریک در دورۀ دوم آزمایش مربوط به تیمار 1 بود (05/0>P). افزودن پسماند کشمش به جیره، تأثیری بر pH مایع شکمبه نداشت (05/0<P). نتایج کلی نشان داد جایگزینی بخشی از یونجه با پسماند کشمش به‌عنوان یک منبع ارزان‌قیمت نه‌تنها اثر منفی بر فراسنجه‌های مورد مطالعه در بره‌های بلوچی ندارد، بلکه می‌تواند باعث افزایش عملکرد آن‌ها نیز شود. | ||
| کلیدواژه‌ها | ||
| پسماند کشمش؛ عملکرد؛ متابولیت‌‌های خونی؛ اسیدهای چرب فرار؛ بره بلوچی | ||
| عنوان مقاله [English] | ||
| The effects of raisin waste on performance, blood parameters and volatile fatty acids of ruminal fluid in Baluchi male lambs | ||
| نویسندگان [English] | ||
| aliasghar yaghoubi1؛ Abdoul Mansour Tahmasbi2؛ Abbas Ali Naserian3؛ reza valizadeh2؛ Seyed Alireza Vakili4 | ||
| 1Ph.D student, Department of Animal Science, Faculty of Agriculture, International Campus Ferdowsi University of Mashhad, Iran | ||
| 2Professor, Department of Animal science, College of Agriculture, Ferdowsi University of Mashhad | ||
| 3Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran | ||
| 4Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran | ||
| چکیده [English] | ||
| An experiment was conducted for evaluation the effects of raisin waste (RW) on the performance, blood parameters and volatile fatty acids (VFA). Numbers of 15 Baluchi male lambs (average weight of 21.15±0.67 kg) were allocated to 3 treatments with a completely randomized design. Experimental treatments included: 1) control (40% alfalfa and no RW), 2) replacement of 50% alfalfa with RW and 3) replacement of 100% alfalfa with RW. Using RW in treatments 2 and 3 had a significant effect on average daily gain compared with control ration (P<0.05). With increasing the amount of RW in the ration, the total protein of serum (TPP) decreased significantly (P<0.05) in the first period of experiment (14-28 days). However, other blood parameters such as glucose, cholesterol, alanine aminotransferase (AST), triglycerides (TG), and blood urea nitrogen (BUN) were not affected by the treatments (P>0.05). The level of TG, AST, TPP and BUN decreased compared with control ration (P<0.05) within the second period of experiment (42-56 days). The lowest amount of acetic acid and valeric acid within the first period of the experiment was for treatment 3, while the highest level of valeric acid and isovaleric acid within the second period was for treatment 1( P<0.05). Adding RW to the ration had no significant effect on pH of ruminal fluid (P>0.05). Overall results showed that replacing part of alfalfa with RW as a low cost product not only had no negative-impact on the studied parameters in Baluchi lambs but it also improved their performance. | ||
| کلیدواژه‌ها [English] | ||
| Raisin waste, performance, Blood metabolites, volatile fatty acids, Baluchi lamb | ||
| مراجع | ||
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