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| Santos,E.M.; Pereira,O.G.; Garcia,R.; Ferreira,C.L.L.F.; Oliveira,J.S.; Silva,T.C.; Rosa,L.O.. |
| Microbial populations, pH, ammonium nitrogen/total nitrogen (N-NH3) ratio, concentrations of lactic acid, acetic acid and butyric acid and the chemical composition of Brachiaria decumbens cv. Basiliski silages at different regrowth ages (30, 40, 50, 60 and 70 days) were evaluated by using 2-kg capacity laboratory silos. It was used a 5 × 6 factorial scheme (5 regrowth ages × 6 fermentation periods) in a complete random design, with three replicates. The fermentation periods were 1, 3, 7, 14, 28 and 56 days. Lactic acid bacteria populations were recorded in fresh forage varying from 3.93 (30 days of regrowth) to 5.51 (70 days of regrowth) log colony-forming units (cfu)/g forage. Maximum populations of these microorganisms were recorded in the silages on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acetic acid; Butyric acid; Enterobacteria; Lactic acid; Lactic acid bacteria. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000400007 |
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| Silva,T.C.; Santos,E.M.; Macedo,C.H.O.; Lima,M.A.; Azevedo,J.A.G.; Pinho,R.M.A.; Perazzo,A.F.; Oliveira,J.S.. |
| Objetivou-se com esta pesquisa avaliar as silagens de 23 híbridos de sorgo por meio da técnica in vitro semiautomática de produção de gases. Foi utilizado o delineamento inteiramente ao acaso, com 23 tratamentos e três repetições, sendo os tratamentos as silagens de híbridos de sorgo. Os híbridos foram cultivados na estação experimental do Instituto Nacional do Semiárido (INSA), no município de Campina Grande - PB. A produção de gases foi estimada por intermédio do modelo logístico bicompartimental, ajustado às curvas de produção cumulativa de gases. Com relação ao volume final de carboidratos fibrosos (VfCF), houve efeito de híbrido (P<0,05), com resultados variando de 105,99 a 144,53mL/g de MS. Os valores de taxa de degradação dos carboidratos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lag time; Produção de gases; Semiárido; Valor nutritivo. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000601865 |
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| Spilki,F.R.; Silva,T.C.; Esteves,P.A.; Teixeira,M.B.; Batista,H.B.C.R.; Chiminazzo,C.; Driemeier,D.; Franco,A.C.; Roehe,P.M.. |
| During a series of experiments attempting to reproduce clinically apparent bovine herpesvirus type 5 (BoHV-5) infections, a group of calves was inadvertently infected with bovine viral diarrhoea virus (BVDV). Another group of calves was infected with BoHV-5 only. This paper reports the outcome of such infections. Two out of six calves solely infected with BoHV-5 displayed moderate to severe clinical signs. Three out of four calves of the group co-infected with BoHV-5 and BVDV developed severe clinical signs, two of them died. BoHV-5 virus was isolated to higher titres and for a longer period from the group of calves infected with both viruses. These results suggest that BVDV may enhance clinical signs induced by BoHV-5 and may also play a role in extending... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: BoHV-5; BVDV; Co-infection; Experimental inoculation. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000500001 |
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