Data/hora: 01/06/2024 22:48:09

Biblioteca(s): 	Embrapa Pantanal.	
Data corrente: 	23/08/1995	
Data da última atualização: 	23/08/1995	
Autoria: 	ACOSTA, R. A.; KOTHMANN, M. M.	
Título: 	Chemical composition of esophageal-fistula forage samples as influenced by drying method and salavary leaching.	
Ano de publicação: 	1978	
Fonte/Imprenta: 	Journal of Animal Science, v.47, n.3, p.691-698, 1978.	
Idioma: 	Inglês	
Conteúdo: 	Esophageal-fistula forage samples were colected in screen-bottomed bags from cows gra-
zing post oak savannah range, and in both screen-bottomed and watertight bagas from 
Coastal bermudagrass pastures. These esophageal-fistula samples and hand-plucked Co-
astal bermudagrass samples were dried by freeze-drying, oven-drying (60 c) and air-drying
methods. Freeze-dried esophageal samples were significantly higher (P<.05) in total nons-
tructural carbohydrates (TNC) and hemicellulose, but lower in acid detergent lignin than 
oven- and air-dried samples. Freeze-dried hand-plucked bermudagrass was higher in TNC
than oven- or air-dried samples; however, no significant changes in crude protein and cel-
lulose were detected among methods of drying. Compared with freeze-drying, organic mat-
ter (OM) losses from oven- and air-drying ranged from 9 to 13% for esophageal-fistula sam-
ples and from 4 to 5% for hand-plucked Coastal bermudagrass. Higher OM losses from fis-
tula samples than hand-plucked samples might the attributed to their higher moisture con-
tent, longer drying time, and plant enzymatic activity. Accurate comparisons of the three
drying methods were possible only when the data were expressed as grams of constituent
remaining per 100 g of original OM. Delaying freezing of esophageal samples for 4 hr did
not alter chemical composition of samples. Samples from screen-bottom collection bags,
as compared with watertight bags, were higher in crude protein and lignin, but lower in 
TNC. This may be a result of leaching.	
Palavras-Chave: 	Esophageal-fistula; Freeze-dry; Lixiviando salival; Metodo secante; Organic matter losses; Pasture; Perda organica; Salivary leaching.	
Thesagro: 	Composição Química; Pastagem.	
Thesaurus Nal: 	chemical composition.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Pantanal (CPAP)	
Exemplares: 	CPAP - (29364-1) - ADD - SP - -- - SP0984 -  - 0984 - DIS