T. Gjefsen

发表

Assessment of crop usage in ad libitum fed birds and short-term phytase efficiency as affected by acid addition

A. Cowieson, N. P. Kjos, B. Svihus, 2021, British poultry science.

The effect of reduced feed pH, phytase addition and their interaction on mineral utilization in pigs

N. P. Kjos, B. Svihus, Siril Kristoffersen, 2021 .

Herring Type Fish Meals in Diets for Early Weaned Piglets: 1. Effects of Different Sources and Levels of Dietary Protein

J. Opstvedt, K. E. Gulbrandsen, T. Gjefsen, 1980 .

Fish oils with different contents of free fatty acids in diets for rainbow trout fingerlings and salmon parr

E. Austreng, T. Gjefsen, 1981 .

Hydrogenated Marine Fat with High Content of Free Fatty Acids in Feed Mixtures for Growing-finishing Pigs

T. Gjefsen, Arvid Lys, 1979 .

Unidentified Growth Factors in Fish Meal: Effects of Low Levels of Fish Meal in Diets for Breeder Broiler Hens

J. Opstvedt, T. Gjefsen, 1975 .

Herring type fish meals in diets for early weaned piglets. 2. Effects of level of dietary protein on carcass composition and nitrogen deposition.

J. Opstvedt, P. Hansen, T. Gjefsen, 1980 .

Herring type fish meal in diets for early weaned piglets. 3. Digestibility and utilization of the protein in diets based on Norseamink (R) fish meal plus whey powder in comparison with dried skim milk.

J. Opstvedt, T. Gjefsen, 1980 .