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vol.33 issue3Cattle supplementation on coastcross pasture (Cynodon dactylon (L.) Pers) during the summerChromium oxide technique for intake estimates of chopped elephantgrass (Pennisetum purpureum Schum.) using lactating cows author indexsubject indexarticles search
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Revista Brasileira de Zootecnia

Print version ISSN 1516-3598On-line version ISSN 1806-9290

Abstract

PROHMANN, Paulo Emílio Fernandes et al. Cattle supplementation on Coastcross pasture (Cynodon dactylon (L.) Pers) during the winter. R. Bras. Zootec. [online]. 2004, vol.33, n.3, pp.801-810. ISSN 1806-9290.  https://doi.org/10.1590/S1516-35982004000300029.

This trial was carried out in Luiziana, Northwest of Paraná, from June to October 2000. Twenty-four animals with 223 kg of initial body weight and nine months old, from two different genetic groups, ½ Red Angus ½ Nellore (15) and ½ Marchigiana ½ Nellore (9), were used. Animal performance was evaluated, under grazing conditions of Coastcross (Cynodon dactylon (L.) Pers) and three types of supplementation: grazing Oat + Ryegrass pasture (OR) for four hours/day; 1.2% of body weight (BW) supplement (S); 1.2% of BW supplement + lasalocid (SL). The experimental area consisted of four padocks: three of Coastcross, with 7.35 ha of total area; and one of Oat (Avena strigosa Schreb) and Ryegrass (Lolium multiflorum Lam), with two ha. Pasture accumulation and quality were evaluated. After 112 days of experimental period, average daily gain did not show any difference between S and SL (1.063 kg and 1.026 kg, respectively), but both were superior than OR (0.856 kg). Lasalocid addition to supplement did not improve animal performance. These results show that even during the dry period, supplementation (1.2% of BW), with or without lasalocid, or winter pasture, can result in high liveweight.

Keywords : grazing; lasalocid; oat; performance; Ryegrass; steers.

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