کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2454571 | 1110399 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison of Low-Input Pasture to High-Input Drylot Backgrounding on Performance and Profitability of Beef Calves Through Harvest
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
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چکیده انگلیسی
Over 3 yr, 250 calves (236 kg initial BW; 133 steers and 117 heifers) were used to compare a low-input pasture backgrounding system (PAST) to a high-input drylot system (DLOT) to evaluate performance and profit during the backgrounding (BACKGRD; weaning to 42 to 45 d) and finishing (FINISH; end BACKGRD to slaughter) phases. Calves were randomly assigned to PAST or DLOT treatments during BACKGRD. The DLOT calves were fed a corn-wheat midds-based pellet plus alfalfa hay (0.68 to 1.13 kg/d), and PAST calves were supplemented with a 32% CP range cube (0.57 kg/d; 3 times/wk). During BACKGRD, DLOT calves gained more BW (P < 0.01) and had a greater final value (P = 0.03), but feed and total costs were more than 4-fold greater (P < 0.01). Net income during BACKGRD was $45 greater (P < 0.01) for PAST than DLOT. After BACKGRD, only steers were finished at a commercial feedlot where they were managed as a single group. During FINISH, PAST steers had greater ADG (P< 0.01; 1.27 vs. 1.07 kg/d) through interim weight (74 to 94 d on feed), but subsequent ADG was similar (P = 0.68). There were no differences (P ⥠0.13) in interim BW, days on feed, total ADG, carcass characteristics, or proportion of steers treated for sickness. However, DLOT steers had greater death loss (P = 0.02; 7.6 vs. 0.0%). During FINISH, PAST steers garnered $111 more gross income (P < 0.01; $946 vs. $833 per carcass) and had a net return advantage (P < 0.01) of $103 per head.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Professional Animal Scientist - Volume 24, Issue 2, April 2008, Pages 169-174
Journal: The Professional Animal Scientist - Volume 24, Issue 2, April 2008, Pages 169-174
نویسندگان
C.P. PAS, S.H. Cox, C.A. Löest, M.K. Petersen, R.L. Endecott, A.M. Encinias, J.C. Wenzel,