کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2454032 | 1110367 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of year-round stocking rate and stocking method systems on performance of cow-calf pairs in the gulf coast region of the United States1
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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
The present research is the second phase (2Â yr) of a multiyear cow-calf project examining the effect of stocking method, i.e., continuous and rotational, and fixed stocking rate on beef-cattle production. Two sets of 4 adjacent pastures, each containing a mixed warm-season, perennial grass sod [common bermudagrass, Cynodon dactylon (L.) Pers.; dallisgrass, Paspalum dilatatum Poir.], were overseeded to 'Marshall' annual ryegrass (Lolium multiflorum) in the autumn of 2 consecutive years. Within each set of 4 pastures, 1 of the following grazing treatments was randomly assigned each pasture: rotationally stocked (8 paddocks) at a low, medium, or high stocking rate (RL, RM, and RH) and continuously stocked at a moderate stocking rate (CM). Low, medium, and high stocking rates were 1.25, 2, and 2.75 cows/ha. Brangus cow-calf pairs were stocked on treatment pastures in March 2004. Mean cow BW was greater for RL compared with RM (P < 0.05; 569 vs. 527Â kg) but did not differ (P > 0.20) for the RM versus RH (522Â kg) and the RM versus CM (530Â kg) stocking-treatment comparisons. Calf-adjusted 205-d BW was similar for all treatment contrasts. Pasture weaning BW differed between the RL versus RM (P < 0.01; 238 vs. 394Â kg/ha) and the RM versus RH (P < 0.01; 394 vs. 583Â kg/ha) treatment contrasts but was similar for RM and CM (P = 0.23; 394 vs. 437Â kg/ha). Stocking rate influenced both cow and calf production, but stocking method had little or no effect in the current study.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Professional Animal Scientist - Volume 29, Issue 1, February 2013, Pages 10-15
Journal: The Professional Animal Scientist - Volume 29, Issue 1, February 2013, Pages 10-15
نویسندگان
W.E. PAS, B.C. Venuto, J.M. Gillespie, D.C. Blouin,