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Integration of Cool- and Warm-Season Grass Pasturing Systems into Cattle Finishing Programs

機(jī)譯：將涼季和暖季型牧草系統(tǒng)集成到牛育肥程序中

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Previously we reported on a study that demonstrated that fall-born steer calves pastured on bromegrass for either portions of or all of the grazing season and then finished in drylot, significantly outperformed calves placed directly into the feedlot in terms of profit/head at harvest time. Areas consisting of highly productive soils, interdispersed with highly erodable land, are well suited for this kind of production practice and in turn production systems of this nature are quite consistent with the concepts of sustainable agriculture. In an effort to capture more grazing potential, it was decided to incorporate warm-season grasses into the pasture program so that forage production would be enhanced during the hot summer months of July and August when cool-season grasses normally become nearly dormant. Therefore, the objective of this multi-year study is to compare steer calves provided a combination of cool- and warm-season grass pastures with calves provided cool-season grass pastures only and followed by all calves being finished in drylot.
機(jī)譯：之前，我們曾在一項研究中進(jìn)行過報道，該研究表明，在放牧季節(jié)的一部分或全部時間內(nèi)，將秋季出生的er牛放牧在草皮草上，然后在干燥地進(jìn)行精加工，就收獲時的收益/頭而言，其性能明顯優(yōu)于直接置于飼養(yǎng)場中的牛。由高產(chǎn)土壤和高侵蝕性土地相互分散的地區(qū)非常適合這種生產(chǎn)實踐，因此，這種性質(zhì)的生產(chǎn)系統(tǒng)與可持續(xù)農(nóng)業(yè)的概念非常一致。為了發(fā)揮更大的放牧潛力，決定將暖季草納入牧場計劃，以便在7月和8月炎熱的夏季（涼季草通常幾乎處于休眠狀態(tài)）提高牧草產(chǎn)量。因此，這項為期多年的研究的目的是比較僅將涼季和暖季型草場組合在一起的cal牛與僅提供涼季的草場，然后將所有犢牛在干場中精整的犢牛。

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