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| Pedreira,Márcio dos Santos; Oliveira,Simone Gisele de; Primavesi,Odo; Lima,Magda Aparecida de; Frighetto,Rosa Toyoko Shiraishi; Berchielli,Telma Teresinha. |
| Using sorghum silage, the effect of roughage/concentrate ratios was evaluated on nutrient intake, digestibility, ruminal parameters and methane production by beef cattle. Three treatments (0, 30 and 60% of concentrate in DM of the diet) were distributed in three Latin squares, with nine animals and three periods. Dry matter intake increased as the grain concentration in diet increased; pH showed opposite behavior. Methane emissions were lower for animals fed the diet exclusively with sorghum silage as compared with those fed 30% of concentrate, but was similar to that of animals receiving 60% of concentrate. Losses of ingested gross energy as methane were reduced by 33% when grain concentration was increased in the diet. Concentrations of propionic and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Global greenhouse gases; Nutritional value; Rumen fermentation; SF6. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000800009 |
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| Lima,Ana Rebeca Castro; Fernandes,Marcia Helena Machado da Rocha; Teixeira,Izabelle Auxiliadora Molina de Almeida; Frighetto,Rosa Toyoko Shiraishi; Bompadre,Thiago Francisco Ventoso; Biagioli,Bruno; Meister,Naomi Cristina; Resende,Kléber Tomás de. |
| ABSTRACT This study was carried out to to evaluate how feed restriction and different forage:concentrate ratios affect digestibility, methane emission (using the SF6 technique), and energy utilization of Anglo-Nubian goats. Fifteen (15) dry and non-pregnant Anglo Nubian goats, averaging 30±2.9 kg body weight, were used. The experiment was divided into two trials, the first of which was designed to study the effects of feed restriction (0% or ad libitum; 15% of feed restriction or equivalent to 85% of ad libitum intake; and 40% of feed restriction or equivalent to 60% of ad libitum intake) and the second, to study the effects of forage:concentrate (F:C) ratios (75:25, 54:46, and 25:75) in the diet. The sulfur hexafluoride (SF6) tracer gas method was used to... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Greenhouse gases; Ruminants; SF6. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001200781 |
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