01 تیر 1403
مجتبي ياري

مجتبی یاری

مرتبه علمی: دانشیار
نشانی:
تحصیلات: دکترای تخصصی / علوم دامی-تغذیه نشخوارکنندگان
تلفن:
دانشکده: دانشکده کشاورزی

مشخصات پژوهش

عنوان
Prediction of energy contents and potential nutrient supply of raisin by-products for ruminants using National Research Council feeding system and in vitro gas production method
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
energy contents; in vitro gas production; raisin by-products; ruminants
سال
2015
مجله RESEARCH OPINIONS IN ANIMAL & VETERINARY SCIENCES
پژوهشگران مجتبی یاری ، میلاد منافی ، مهدی هدایتی ، سعید خلجی

چکیده

Using local agro-industrial by-products can help to fill feed shortages in ruminant feeding in semi-arid climate condition. The objective of current study was to determine the nutritive value of several sun dried grapevine (raisin) by-products (RBPs) for ruminants using National Research Council feeding system (NRC) and in vitro gas production method. Several RBPs of sun dried treated grapevine cluster (Vitis vinifera L. cv. Sultana), were 1) some outer layer of flesh and skin and pedicle of berries (RBP1); 2) rejected raisins mostly un-ripped berries with their pedicles (RBP2) and 3) peduncles and rachises with their lateral branches of clusters (RBP3). Using NRC 1996 and 2001 feeding system, RBP1 and RBP2 had higher predicted metabolizable energy (ME; 11.48 and 9.45 vs. 5.99 MJ/kg DM; P<0.05) and net energy for lactation at the level of production intake (NElp; 4.90 and 5.52 respectively vs. 2.68 MJ/kg DM; P<0.05) compared with RBP3. The RBP2 had higher in vitro cumulative gas production at 24 h of incubation, estimated NEl, ME and organic matter digestibility compared with RBP1 and RBP3 (P<0.01). Current results indicate that the RBPs could be considered as alternative feeds in ruminants feeding during dry periods.