QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Purchase Article View Shopping Cart Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Pond, W. G. Articles by Stillings, B. R. Search for Related Content PubMed PubMed Citation Articles by Pond, W. G. Articles by Stillings, B. R.

Relative Utilization of Casein, Fish Protein Concentrate and Isolated Soybean Protein for Growth and Pancreatic Enzyme Regeneration of the Protein-Calorie Malnourished Baby Pig¹

Department of Animal Science, New York State College of Agriculture and Department of Human Nutrition and Food, College of Human Ecology, Cornell University, ^{,2 ,3} Ithaca, New York 14850 and U.S. National Marine Fisheries Service, ^,5 College Park, Maryland 20740

Forty-eight Yorkshire pigs weaned at 3 weeks of age were used in a protein depletion-repletion experiment to compare the adequacy of casein, isolated soy protein (ISP) or fish protein concentrate (FPC) for rehabilitation from protein-calorie malnutrition. All repletion diets were fed ad libitum at 13% protein. After 6 weeks depletion on a 3% protein-20% fat diet, weight gain was nil and total serum protein and serum albumin and pancreas weight, trypsinogen, chymotrypsinogen, amylase and lipase were severely reduced. Chymotrypsinogen and amylase activity per gram of pancreas were also significantly less than in controls. Pigs fed ISP during repletion had significantly lower weight gain after 6 weeks than pigs fed casein or FPC. After 3 weeks, control pigs had higher serum protein and albumin concentrations, larger pancreases with more total enzyme activity than pigs fed repletion diets. All repletion diets produced a similar pancreatic response except that pigs fed ISP had less amylase per pancreas and per gram of pancreas than pigs fed other repletion diets. After 6 weeks, total serum protein and serum albumin were similar in control and repleted pigs fed casein or FPC. Pigs fed ISP had significantly lower concentrations of each. Pancreatic size and enzyme content continued to be greater in control pigs than in repleted pigs after 6 weeks of repletion. Differences among repletion groups with respect to pancreatic enzymes were not significant after 6 weeks, although amylase values for pigs fed ISP tended to be lower than for pigs of other groups. It is concluded that FPC is equal to casein as the sole source of protein for young animals during repletion from protein-calorie malnutrition, but that ISP is inferior to both FPC and casein in promoting growth, feed intake and regeneration of serum proteins and pancreatic enzymes.

² Department of Animal Science, New York State College of Agriculture, Cornell University, Ithaca, N. Y. 14850.

³ Department of Human Nutrition and Food, College of Human Ecology, Cornell University, Ithaca, N. Y. 14850.

⁴ Student in The Graduate School of Nutrition, Cornell University, Ithaca, N. Y. during the time the work was done.

⁵ U. S. National Marine Fisheries Service, College Park, Md. 20740.

Manuscript received 17 February 1970.