Potential contribution of Quercus durata and Adenostoma fasciculatum supplemented with Medicago sativa on intake and digestibility in sheep and goats

Autor: Arieh Brosh, Wolfgang Pittroff, Miguel Mellado, Nelmy Narvaez
Rok vydání: 2011
Předmět:
Zdroj: Agroforestry Systems. 83:279-286
ISSN: 1572-9680
0167-4366
DOI: 10.1007/s10457-011-9387-2
Popis: A digestion trial was conducted to estimate the potential contribution of the chaparral browse Quercus durata (leather oak) and Adenostoma fasciculatum (chamise) on intake and nutrient digestion in goats and sheep. Four wether Kiko goats (avg. wt. 22.9 kg) and four wether Targhee sheep (avg. wt. 39.6 kg) were housed in metabolism cages. Alfalfa pellets were used as a dietary supplement. Digestibility of the shrubs was measured by difference and metabolizable energy (ME) and ME intake (MEI) were calculated from digestibility and plants intake values. Oak and chamise had low crude protein (CP) content (6.5 and 4.3% DM) and high content of extractable condensed tannins (17.8 and 9.8% DM). In vitro organic matter digestibility (OMD) and ME for oak and chamise were 35.6 and 33.1% and 5.0 and 4.7 MJ/kg DM, respectively. In vivo OMD (calculated by difference with alfalfa) and MEI, for browse were greater (P
Databáze: OpenAIRE
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