Chemical composition, in vivo digestibility, N degradability and enzymatic intestinal digestibility of five protein supplements

• Type: Article in International Scientific Journal
• Date: 2005

Authors

Carvalho, LF (Author) Other; Melo, DSP (Author) Other; Pereira, CRM (Author) Other; Rodrigues, MAM (Author) Other; A. Cabrita (Author) FCUP; Antonio J M Fonseca (Author) ICBAS

Journal

Title: Animal Feed Science and Technology

Vol. 119

Pages: 171-178

ISSN: 0377-8401

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 16 Citations

Scopus - 24 Citations

Scientific classification

CORDIS: Natural sciences > Agrarian Sciences > Zootechnics

FOS: Agrarian Sciences > Animal and Dairy science

Other information

Authenticus ID: P-000-49E

DOI: 10.1016/j.anifeedsci.2004.12.006

Abstract (EN): The nutritive value of solvent extract palm kernel meal (SPKM), expeller palm kernel meal (EPKM), copra meal (CM), corn distillers dried grains (CDG) and corn gluten feed (CGF) were evaluated. Apparent in vivo digestibility was measured in rams using increasing levels of supplement studied. Dry matter (DM) and N degradability of feeds after 0, 12 and 16 h rumen incubation and enzymatic digestibility of rumen undegradable protein (UDP) were also determined. It was confirmed that supplements differ significantly in terms of digestibility (energetic value), N degradability and intestinal digestibility of UDP, the figures obtained being consistent with those found in the literature. The low energetic value of SPKM could limit its inclusion in high productive ruminant diets. Although CDG may be considered a good source of UDP, the intestinal digestibility of this fraction was low. Additionally, the relatively high unsaturated fat content of CDG might restrict its incorporation level in ruminant diets.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8