Contrasting levels of fructose and urea added to an annual ryegrass based diet: effects on microbial protein synthesis, nutrient digestibility and fermentation parameters in continuous culture fermenters

Autor:	Mariano Alende, Gustavo J. Lascano, Thomas C. Jenkins, John G. Andrae
Jazyk:	English<br />Spanish; Castilian
Rok vydání:	2019
Předmět:	annual ryegrass continuous culture crude protein microbial protein synthesis water soluble carbohydrate Agriculture (General) S1-972 Animal culture SF1-1100 Cattle SF191-275
Zdroj:	Semiárida, Vol 29, Iss 1 (2019)
Druh dokumentu:	article
ISSN:	2362-4337 2408-4077
DOI:	10.19137/semiarida.2019(01).33-41
Popis:	The objective of this experiment was to evaluate the effects of the addition of crystalline fructose and urea to an annual ryegrassbased diet on microbial protein synthesis, fermentation profile and nutrient apparent digestibility, using continuous culture fermenters. Six fermenters were used in a 3 x 2 factorial arrangement with three levels of water soluble carbohydrates (WSC) obtained by crystalline fructose addition (21, 24 and 27 g.100 g DM1; LWSC, MWSC and HWSC, respectively) and two levels of CP obtained by urea addition (14.6 and 18.6 g.100 g DM1, LCP and HCP, respectively). Four 10d periods were ran sequentially (7d for adaptation, 3d for sampling). Microbial protein synthesis was assessed by purine to N ratio. There was a positive interaction between WSC and CP level on microbial protein synthesis (P
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/4e18e46247824fa8bd650fc50c3e34f2 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF