+ Translate

Estimation of protein digestibility. 2. In vitro assay of protein in salmonid feeds

, : Estimation of protein digestibility. 2. In vitro assay of protein in salmonid feeds. Comparative Biochemistry and Physiology A, Physiology 108(2/3): 363-370

In vitro digestibility of protein in various salmonid feeds was estimated by pH-stat using enzyme fractions from trout pyloric caeca. Data were compared with in vivo digestibility and growth of fish by linear regression analysis. Results indicated that there were good agreements between the degree of hydrolysis of most feed samples and growth of fish.

(PDF 0-2 workdays service)

Accession: 002373367

Submit PDF Full Text: Here

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Related references

Babinszky, L.; Boer, H.; Meer, J.H. van der; Hartog, L.A. den; Metz, S.H.M.; Huisman, J., 1987: New multi-enzyme method for the estimation in vitro of digestibility of protein in pig feeds. A multi-enzyme method was used to estimate digestibility of 7 feed components and 16 pig feed mixtures. Values estimated in vivo were related to in vitro values, x, by the equations: y = 1.8329x - 80.1184 for feed components and y = 1.4430x - 42.6...

Ladetto, G., 1980: Estimation of protein digestibility of feeds for ruminants: relationship between acid detergent fibre nitrogen content (expressed as percentage total nitrogen) of some hays and the digestibility of their protein in vivo. 6 hays from 1st and 2nd cuts from a mixed pasture or lucerne were fed to cattle. CF, acid detergent fibre (ADF) and ADF-N contents were negatively correlated with protein digestibility (r = -0.84, -0.95 and -0.86, resp.). ADF had the highest corre...

Sugiura, S.H.; Dong, F.M.; Rathbone, C.K.; Hardy, R.W., 1998: Apparent protein digestibility and mineral availabilities in various feed ingredients for salmonid feeds. Apparent digestibility of protein and availability of minerals (Ca, K, P, Mg, Na, Cu, Fe, Mn, Sr, Zn) in various feed ingredients were determined for coho salmon and rainbow trout using yttrium oxide (Y2O3) as the inert marker and passive feces co...

Dimes, L.; Haard, N., 1994: Estimation of protein digestibility. I. Development of an in vitro method for estimating protein digestibility in salmonids (Salmo gairdneri). A pH-stat in vitro assay method using enzyme fraction from fish pyloric ceca was developed for estimating protein digestibility in salmonid diets. The data obtained by pH-stat method were compared with those obtained by pH-shift methods and with i...

Guillaume, J., 1980: Digestibility of crude protein of some feeds in cocks. 1. Estimation of true digestibility by regression of excreted proteins on ingested proteins. Comparison with apparent digestibility. 1. For 20 diets containing maize, soya or various types of meat or bone meal the coefficient of true digestion (CODr) of total protein was estimated from the regression of excreted faecal nitrogen on N intake, and compared with the coefficient of...

Haard, N.F., 1995: Digestibility and in vitro evaluation of plant protein for salmonid feed. Lim, C [Editor], Sessa, D J [Editor] Nutrition and utilization technology in aquaculture 199-219

Chang, H.; Catignani, G.; Swaisgood, H., 1990: Protein digestibility of alkali- and fructose-treated protein by rat true digestibility assay and by the immobilized digestive enzyme assay system. Journal of agricultural and food chemistry 38(4): 1016-1018

Gruhn, K., 1976: Replacement of protein feeds by high-protein wheat supplemented with lysine during rearing and the laying period of hens. 7. Estimation of true digestibility of amino acids with and without lysine added to the diet. 7. Groups of 4 hens were given 120, 100, 80, 60 or 40 g of a pelleted feed containing 74% high-protein wheat and supplying 554 mg lysine/100 g pellets or the same amounts of the feed with a supplement of lysine to supply 664 mg/100 g pellets. On a...

Hatieganu, V.; Mosolova, L., 1967: Feeds for chickens reared for meat. Possibility and effect of replacing animal protein by plant protein. 4. Energy and biological values of feeds estimated in digestibility trials. Digestibility of the feeds was estimated with 120 chickens 50 days old, during 7 days. Proximate constituents of the feeds are tabulated. There was little difference between the groups for nutritive value estimated as feed units (FU), total digest...

Ladetto, G., 1980: Prediction of protein digestibility in ruminant feeds: relationship between acid detergent-fiber nitrogen (as percent of total Notrogen) of some hays and protein digestibility in vivo Cattle.1. Annali della Facolta di medicina veterinaria di Torino7(27): 343-350