The introduction of integrated crop-livestock systems (ICLS) is an alternative to rice monoculture in lowlands of Southern Brazil..

BARROS, T.

BORIN, J. B. M.

CARVALHO, P. C. de F.

LOCHMANN, S. H.

MARTINS, A. P.

SANT'ANNA, D. M.

WINTER, J. C.

English

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   Implementation of different integrated crop-livestock systems in lowlands of Southern Brazil: an animal production approach Thiago BARROS1*, José B. M. BORIN2, Sarah H. LOCHMANN2, João C. Winter2, Danilo S. SANT’ANNA3, Amanda P. MARTINS2, Paulo C. F. CARVALHO1  1 Forage Plants Department, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.  2 Soil Department, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.  3 Embrapa Pecuária Sul, Bagé, RS, Brazil. E-mail address of presenting author*: thiagopoabr@hotmail.com   Introduction  The introduction of integrated crop-livestock systems (ICLS) is an alternative to rice monoculture in lowlands of Southern Brazil (Anghinoni et al., 2013). During the winter period, the establishment of pastures with livestock emerges as one of the main options for land use due to the existence of forage species adapted to this edaphoclimatic environment. In this study we evaluate the animal production in the first winter grazing season of a long-term ICLS experiment with pastures that present different botanical compositions. Material and Methods The experiment was installed in March 2013, in the Corticeiras Farm, Cristal County, Rio Grande do Sul State, Brazil. After soil tillage and correction (liming), the treatments were implemented, being: 1) Annual ryegrass (AR) succeeded by rice; 2) AR succeeded by soybean; 3) AR + white clover (WC) succeeded by Sudan grass; and 4) AR + WC + birdsfoot trefoil succeeded by native summer pasture species (succession field), preceding distinct summer crops. The grazing began on July 3rd, and the end of grazing season was performed according to subsequent crop. The grazing method was continuous with variable stocking to reach an average pasture height  of 15 cm. The steers were weighed fasted in and out of the trial period and the data were subjected to analysis of variance and Tukey test at a 5% significance level. Results and Conclusions  Table 1. Animal production in different winter pastures on the implementation of integrated crop-livestock systems in lowlands of Southern Brazil Treatment Average daily gain (kg animal-1) Gain (kg ha-1) Stocking rate (kg ha-1) Grazing days Next crop 1 0.67 a 340 c 1140 a 92 Rice 2 0.73 a 470 a 1014 b 126 Soybean 3 0.63 a 373 bc 957 b 126 Sudan grass 4 0.65 a 419 ab 970 b 139 Succession field Means followed by different letters in the column differ according to the Tukey test (5%).  The average daily gains were similar in all treatments, with the highest yields per area being observed in Treatments 2 and 4, and the highest stocking rate in the Treatment 1.  References cited Anghinoni et al. (2013). Tópicos em ciência do solo. 8: 325-380. Acknowledgements  To Agrisus, CNPq and CAPES for the financial and scholarship support. 

Implementation of different integrated crop-livestock systems in lowlands of Southern Brazil: an animal production approach.

http://www.alice.cnptia.embrapa.br/bitstream/doc/1029634/1/DaniloILPwcclf2015AP6P.pdf

Implementation of different integrated crop-livestock systems in lowlands of Southern Brazil: an animal production approach.

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