کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8491059 | 1552351 | 2018 | 30 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of different levels of pomegranate marc with or without polyethylene glycol on performance, nutrients digestibility and protozoal population in growing lambs
ترجمه فارسی عنوان
اثر سطوح مختلف مارک انار با پلی اتیلن گلیکول و یا بدون آن بر عملکرد، هضم مواد مغذی و جمعیت پروتوزولی در بره های در حال رشد
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کلمات کلیدی
NFCnon-fibrous carbohydrateADGFCRADFaNDFDMIacid detergent fiber - الیاف پاک کننده اسیدBUN - خوبether extract - عصاره اترneutral detergent fiber - فیبر مواد شوینده خنثیorganic matter - ماده آلیdry matter - ماده خشکaverage daily gain - متوسط افزایش روزانهdry matter intake - مصرف ماده خشکblood urea nitrogen - نیتروژن اوره خونbody weight - وزن بدنcrude protein - پروتئین خامpolyethylene glycol - پلی اتیلن گلیکولPEG - پلیاتیلن گلیکول
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
چکیده انگلیسی
This study was conducted to investigate the effect of different levels of pomegranate marc (PM) supplemented with or without polyethylene glycol (PEG) on performance, intake, nutrient digestibility, nitrogen retention, ruminal ammonia concentration and protozoal population in growing lambs. Thirty Mehraban male lambs (4-5 months of age; 29.5 ± 1.19 kg initial body weight (BW)) were assigned randomly to five treatments (6 lambs per treatment) which were different levels of PM with or without PEG: without PM (Control), 80 g PM/kg DM (PM80), PM80 with PEG (PM80 + PEG), 160 g PM/kg DM (PM160), and PM160 with PEG (PM160 + PEG). On day 61 of the fattening period, four animals from each group were selected randomly and housed individually in metabolism crates to evaluate nutrient digestibility by total collection method. Control animals had a greater dry matter intake (DMI) and average daily gain (ADG) compared with PM160 (P < 0.05). However, lambs fed the high level of PM showed decreased DMI and ADG compared with those fed the low level of PM (P < 0.05). The addition of PEG to the PM diets increased DMI (P < 0.05), but did not affect the ADG (P > 0.05) of lambs. The PM160 diet had lower crude protein (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF) digestibities compared with other treatments (P > 0.05). The addition of PEG to the PM diets increased the digestibilities of OM, CP, NDF and ADF (P < 0.05) by lambs. There were no differences among treatments for N intake, fecal N output and N retention (P > 0.05). Addition of PEG to the PM diets increased urinary N output and the ratio of urinary to fecal N (P < 0.05). Ruminal ammonia concentration, numbers of Entodinium spp. and total protozoa population were higher in control-fed lambs than lambs fed other treatments. Inclusion of PEG in diets containing PM increased ruminal ammonia concentration, blood urea nitrogen, numbers of Entodinium spp. and total protozoa population (p < 0.05). In conclusion, addition of 80 g PM/kg DM of diet or tannins up to 1.62% of DM had no adverse effect on DMI, ADG, FCR, nutrient digestibility and N retention by lambs but it decreased protozoal population, ruminal ammonia concentration and blood urea nitrogen in lambs fed concentration based diets.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Feed Science and Technology - Volume 235, January 2018, Pages 15-22
Journal: Animal Feed Science and Technology - Volume 235, January 2018, Pages 15-22
نویسندگان
Ali Hatami, Daryoush Alipour, Fardin Hozhabri, Meisam Tabatabaei,