South Dakota Beef Report, 1986
Document Type
Report
Report Number
86-3
Publication Date
1986
Keywords
semi-purified, diet, lambs, dry matter digestibility, ADF digestibility, digestible N retained
Summary
A semi-purified diet (SPD) was fed to 12 wether lambs and one fistulated wether and evaluated for acceptability and ability to support growth. Ruminal pH and NH3 were monitored throughout the diet adaptation period. Treatments included three levels of dry matter intake; low intake (LI) 750 g-hd-l. d-l, medium intake (MI) 1125 g-hd-l..d-l and high intake (HI) 1500 g-hd-l.d-l. Digestibility of dry matter (DM, 70.6%), acid detergent fiber (ADF, 62.8%), nitrogen (N, 72.8%) and percentage digestible nitrogen retained (33.2%) were not different across intake levels. Indigestible ADF of the semi-purified diet appears to be a suitable solid phase marker for estimating DM digestibility if DM intake is accounted for. Regression analysis indicated indigestible ADF recovered in feces was related to indigestible ADF intake and DM intake as described by the equation Indigestible ADF recovered = 80.3824 +.852 (indigestible ADF intake) + .0426 DM intake; (r2 = ,7057; P< .01).
Number of Pages
7
Type
text
Format
application/pdf
Language
en
Publisher
South Dakota State University
Rights
Copyright © 1986 South Dakota State University
Recommended Citation
Fritz, T. and Pritchard, R.H., "Development of an in Vivo Model to Determine the Biological Value of Microbial Protein" (1986). South Dakota Beef Report, 1986. 4.
https://openprairie.sdstate.edu/sd_beefreport_1986/4