scholarly journals Effect of dietary protein source on feed intake, growth, pancreatic enzyme activities and jejunal morphology in newly-weaned piglets

1994 ◽  
Vol 72 (3) ◽  
pp. 353-368 ◽  
Author(s):  
Caroline A. Makkink ◽  
George Puia Negulescu ◽  
Qin Guixin ◽  
Martin W. A. Verstegen

Seventy piglets with no access to creep feed were weaned at 28 d of age and fed on one of four diets based on either skimmed-milk powder (SMP), soya-bean-protein concentrate (SPC), soya-bean meal (SBM) or fish meal (FM). At 0, 3, 6 and 10 d after weaning, piglets were killed and the pancreas and digesta from stomach and small intestine were collected, freeze-dried and analysed for dry matter (DM), N, and trypsin (EC3.4.21.4) and chymotrypsin (EC3.4.21.1) activities. Small-intestinal tissue samples were taken to examine gut wall morphology. Results indicated that dietary protein source affected post-weaning feed intake, pancreatic weight, gastric pH and gastric protein breakdown, and pancreatic and jejunal trypsin and chymotrypsin activities. Post-weaning feed intake appeared to be an important factor in digestive development of newly-weaned piglets.

2004 ◽  
Vol 86 (1-3) ◽  
pp. 169-177 ◽  
Author(s):  
M.A.M Vente-Spreeuwenberg ◽  
J.M.A.J Verdonk ◽  
G.C.M Bakker ◽  
A.C Beynen ◽  
M.W.A Verstegen

1981 ◽  
Vol 46 (3) ◽  
pp. 421-430 ◽  
Author(s):  
Chitra Pathirana ◽  
M. J. Gibney ◽  
T. G. Taylor

1. Four groups of six rabbits were given purified diets in which the dietary variables were protein source (isolated soya-bean protein or cow's-milk protein) with or without saponin supplementation (10 g/kg).2. Rabbits given soya-based diets showed significantly lower serum concentrations of triglyceride and cholesterol (P < 0·01). The latter changes were confined to the cholesterol fractions of β-lipoproteins.3. These changes in serum cholesterol were associated with a significantly increased excretion of acid and neutral sterols in animals given soya-bean protein.4. There was no evidence to suggest that the effect of dietary protein source on serum lipids and the excretion of total and individual sterols was influenced by saponin supplementation.5. These results do not support the hypothesis that the hypocholesterolaemia associated with plant proteins is due to the presence of saponins.


1982 ◽  
Vol 62 (4) ◽  
pp. 1199-1209 ◽  
Author(s):  
V. A. POUTEAUX ◽  
G. I. CHRISTISON ◽  
C. S. RHODES

Two experiments were conducted to evaluate the involvement of dietary protein and short-term chilling on the incidence of diarrhea and on transit time of digesta in pigs weaned at 3–4 wk of age. The three protein sources used were buttermilk powder (BMP), soybean meal (SBM) or pea protein concentrate (PPC), which provided 85% of the dietary protein. In exp. 1, 72 pigs were exposed to a 16 °C decrease in ambient temperature for 8 h on day 4 of a 9-day feeding trial; 72 pigs were not chilled. The pigs on the PPC diet gained less (539 g) (P < 0.05) than pigs on BMP (1183 g) or SBM (952 g) although intakes were similar. Neither diet nor chilling affected fecal moisture content or the incidence of diarrhea. The PPC ration increased (P < 0.05) transit time (slowed rate of passage) on day 8. Chilling on day 4 decreased (P < 0.05) transit time (18.7 vs. 25.6 h) on that day. Neither protein source nor chilling caused differences in total or coliform bacteria isolated from fecal samples on blood agar or MacConkey's agar. In exp. 2, eight chilled and nine control pigs were euthanized and the quantity of three markers in six segments of the gastrointestinal tract was determined. The PPC diet passed more slowly than the other diets. In chilled pigs, the chromic oxide front was closer to the anus, indicating an increased rate of passage. It was concluded that the severity of the cold exposure was not suffficient to induce diarrhea and that there was no interaction between the effects of chilling and of dietary protein. There was, however, a tendency for chilling to increase the rate of passage of digesta which could have an additive effect on the severity of nutritional diarrhea. Key words: Pigs, weaning, diarrhea, protein, cold, transit time.


Aquaculture ◽  
1994 ◽  
Vol 124 (1-4) ◽  
pp. 62 ◽  
Author(s):  
M.A.B. Habib ◽  
M.R. Hasan ◽  
A.M. Akand ◽  
A. Siddiqua

1987 ◽  
Vol 117 (10) ◽  
pp. 1801-1804 ◽  
Author(s):  
Takaaki Kameji ◽  
Yasuko Murakami ◽  
Masaki Takiguchi ◽  
Masataka Mori ◽  
Masamiti Tatibana ◽  
...  

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