کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2453775 1110345 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of feeding baleage to beef calves on performance, rumen fermentation, and metabolic response during the fall backgrounding period
ترجمه فارسی عنوان
اثرات تغذیه باکتری در گوسفند گوساله ها بر عملکرد، تخمیر شکمبه و پاسخ متابولیکی در دوره سقوط
کلمات کلیدی
پس زمینه بیلیارد، گوساله گوشت گاو، اسید چرب فرار
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
چکیده انگلیسی
A total of 180 spring-born beef calves (BW = 217 ± 20.6 kg) were fed bermudagrass (Cynodon dactylon) or rye (Secale cereale) and ryegrass (Lolium multiflorum) baleage to evaluate performance, blood metabolites, rumen fermentation, and forage refusal for 60 d after weaning. Calves were stratified by BW, sex, and breed to 1 of 9 paddocks and fed 1 of 3 diets: 47-d-regrowth bermudagrass hay (BERH), 43-d-regrowth bermudagrass baleage (BERB), or late-bloom rye-ryegrass baleage (LRRG). A CP liquid supplement was provided ad libitum for 60 d. Calves were weighed on d − 1, 0, 29, 30, 60, and 61 for comparison of animal performance. Ruminal fluid (n = 5/paddock) and blood samples (n = 10/ paddock) were collected for pH, ammonia (NH3), VFA, plasma urea N, and glucose on d − 7, 30, and 60. Calves fed LRRG had greater (P < 0.01) 60-d BW gain and less (P < 0.01) plasma urea N on d 30 and 60 compared with BERB and BERH. Ruminal pH was greater (P < 0.01) for BERB compared with BERH on d 30 and lower for BERB compared with BERH and LRRG on d 60. The BERH group had greater glucose (P = 0.05) and total VFA (P < 0.01) compared with BERB and LRRG. Glucose, NH3, and VFA decreased (P < 0.01) over time from d − 7 to 30. Forage refusal was greater (P < 0.01) for BERH compared with BERB and LRRG. Feeding rye-ryegrass baleage resulted in lower plasma urea N while improving calf performance and reducing forage refusal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Professional Animal Scientist - Volume 31, Issue 4, August 2015, Pages 324-332
نویسندگان
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