Expeller soybean meal as a source of rumen undegradable protein for lactating dairy cows (1997)

Authors

John E. Shirley
D. Piehl
Evan C. Titgemeyer
Michael V. Scheffel

Keywords

Dairy Day, 1997; Kansas Agricultural Experiment Station contribution; no. 98-100-S; Report of progress (Kansas Agricultural Experiment Station and Cooperative Extension Service); 792; Dairy; Lactating cows; UIP; Expeller soybean meal

Abstract

The loss of meat and bone meal as a source of high quality protein for lactating cows creates an increased need for nonanimal sources. Fifty six Holstein cows were used to evaluate expeller soybean meal as a source of rumen undegradable intake (by-pass) protein for high producing cows. Expeller soybean meal tended to improve 3.5% contain fat-corrected milk yield and increased milk fat percentage relative to diets containing either solvent soybean meal or a meat and bone meal:blood meal mixture. In contrast, the protein percentage in milk was depressed significantly when cows were fed expeller soybean meal compared to animal protein. A limiting amino acid (possibly methionine) is implicated.; Dairy Day, 1997, Kansas State University, Manhattan, KS, 1997;

Recommended Citation

Shirley, John E.; Piehl, D.; Titgemeyer, Evan C.; and Scheffel, Michael V. (1997) "Expeller soybean meal as a source of rumen undegradable protein for lactating dairy cows (1997)," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 2. https://doi.org/10.4148/2378-5977.3288