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Steers production in integrated crop-livestock systems: pasture management under different sward heights Rev. Ciênc. Agron.
Wesp,Cristiane de Lima; Carvalho,Paulo César de Faccio; Conte,Osmar; Cadenazzi,Mónica; Anghinoni,Ibanor; Bremm,Carolina.
ABSTRACT The aim of this study was to evaluate the effects of different grazing intensities on forage production and animal performance of yearling steers kept under permanent grazing in an integrated crop-livestock system. The treatments consisted of areas with sward heights of 10; 20; 30 and 40 cm, and one treatment with no grazing. The pastures were of bristle oat (Avena strigosa Schreb.) and annual ryegrass (Lolium multiflorum Lam.) following soybean (Glycine max (L.) Merr.). The variables forage mass, forage allowance and residual straw showed a positive and linear fit to the increasing sward height (P≤0.0001). Average daily gain of steers displayed a quadratic response (P = 0.0017), being optimal with increases in grazing height up to values of near...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Steers; Pasture-management; Animal stock; Average daily gain; Carcass weight.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000100187
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Growth of Brazilian beef production: effect of shocks of supply and demand Rev. Econ. Sociol. Rural
Silva Neto,Waldemiro Alcântara da; Bacchi,Mirian Rumenos Piedade.
With the considerable growth of beef production in Brazil and the growth in beef exports as a backdrop, the main objective of this study is to identify the factors responsible for the excellent performance of this agribusiness sector. Conducting this study required the construction of a theoretical model that was capable of supporting the specification of the adjusted econometric model using vector autoregression with identification by the Bernanke process. The findings show that the main determinant of beef cattle growth and Brazilian beef exports is increased animal stock. Furthermore, productivity has a positive, albeit more modest, effect on beef production and exports. The results show that the increase of the number of cattle reduces costs to the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Beef cattle; Exports; Animal stock; Trading.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032014000200001
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