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Correlations between production and economic variables in dairy cows on a tropical pasture Animal Sciences
Figueiredo, Cibelle Borges; Santana Júnior, Hermógenes Almeida de; Bezerra, Leilson Rocha; Mendes, Fabrício Bacelar Lima; Cardoso-Santana, Elizângela Oliveira; Abreu Filho, George.
The objective of this study was to evaluate correlations between production and economic variables of lactating cows on a tropical pasture. The experiment involved ten ¾ Holstein × ¼ Dairy Gyr cows in the middle third of lactation at an average age of 70 ± 4.6 months and an average body weight of 400 ± 55.2 kg. Cows were supplemented with a concentrate feed with different supplement compositions aiming to promote alterations in the animal performance and economic responses. Data were analyzed statistically by Pearson correlations at the 0.95 probability level. No correlations were observed for fat and total solids with economic variables (p > 0.05). Milk yield was positively correlated with (p < 0.05), but had no correlation with FC or MRR (p >...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.05.00-4 composition; Interaction; Milk; Pasture; Relationship; Ruminant..
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/39737
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Production and quantitation of cellulases by solid state fermentation residues of agroindustrial Sci. Agrar.Paran. / SAP
Santos, Tamires Carvalho dos; Abreu Filho, George; Rocha, Thiago José Honório; Ferreira, Adriana Nascimento; Diniz, Gleiza Alves; Franco, Marcelo.
The objective of this study was to analyze and quantify the activity of enzymes endoglucanase and total cellulases produced by solid state fermentation of  waste from processing of cocoa, mango and  hog plum, used  the fungus Aspergillus niger as inoculant. To determine the effect of  enzyme production, an experiment was conducted in a factorial 3 x 5, in which three levels of water content (40, 50 and  60%) and five levels for the fermentation time (24, 48, 72 , 96 and 120 h). Fermentation was performed  at  30 °C in a bacteriological incubator refrigerated. The industrial residues shown to be highly effective in the production of enzymes from the solid-state fermentation, especially production of  endoglucanse residue from the sleeve has reached  the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aspergillus niger; Biotransformação; Modelos matemáticos significativos..
Ano: 2013 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/6902
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