The effect of feeding level on apparent digestibility of dietary dry matter, crude protein and gross energy in the African catfish Clarias gariepinus (Burchell, 1822) von Henken, A.M., Kleingeld, D.W., Tijssen, P.A.T.

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A comparison between methods used to determine the energy content of feed, fish and faeces samples von Henken, A.M., Lucas, H., Tijssen, P.A.T., Machiels, M.A.M.

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Balance trials with African catfish Clarias gariepinus fed phytase-treated soybean meal-based diets von Weerd, J.H. van, Khalaf, K.A, Aartsen, F.J, Tijssen, P.A.T

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Metabolic costs of changing the cation-anion difference in the diet of juvenile African catfish Clarias gariepinus (Burchell) von Dersjant, L.Y, Verreth, J.A.J, Tijssen, P.A.T, Booms, R, Verstegen, M.W.A, Huisman, E.A

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The influence of dietary cation-anion differences on acid-base balance, food intake, growth and nutrient utilisation of juvenile African catfish Clarias gariepinus (Burchell) von Dersjant-li, Y, Verreth, Jaj, Evers, F, Tijssen, Pat, Booms, R, Verstegen, Mwa

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Nitrogen excretion and determination of nitrogen and energy budgets in rainbow trout (Oncorhynchus mykiss R.) under different feeding regimes von Weerd, J.H. van, Verástegui, A. M., Tijssen, P.A.T.

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