A Very Low CP Level Reduced Diarrhoea and Productivity in Weaner Pigs, but No Differences between Post-Weaning Diets Including Soybean Meal or Soy Protein Concentrate Were Found

Soy protein concentrate improves nutrient utilization and growth performance compared to soybean meal, and diets with a low crude protein (CP) level decreases diarrhoea. The objectives were to (1) test a low CP diet based on different soy products, and (2) to test a very-low CP diet (15.1%) with ami...

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Bibliographic Details
Published in:Animals (Basel) 2021-03, Vol.11 (3), p.678
Main Authors: Lynegaard, Julie C, Kjeldsen, Niels J, Bache, Julie K, Weber, Nicolai R, Hansen, Christian F, Nielsen, Jens Peter, Amdi, Charlotte
Format: Article
Language:English
Subjects:
amino acids
Antibiotics
Barley
Diarrhea
Diet
Feed conversion
Feeds
growth performance
Hogs
Laboratory animals
Low protein diet
Nutrient deficiency
Nutrient utilization
Physical growth
post-weaning diarrhoea
Productivity
protein
Protein sources
Proteins
Soybeans
swine
Testing laboratories
Weaning
Zinc oxide
Zinc oxides
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Summary:Soy protein concentrate improves nutrient utilization and growth performance compared to soybean meal, and diets with a low crude protein (CP) level decreases diarrhoea. The objectives were to (1) test a low CP diet based on different soy products, and (2) to test a very-low CP diet (15.1%) with amino acids (AA) on diarrhoea and productivity. A total of 5,635 weaned pigs (~28 days), were assigned to five dietary treatments; PC (positive control): Standard CP levels (192, 189, 191 g/kg CP) with 2500 ppm ZnO; NC (negative control): Same as PC without ZnO; SP (Soy protein concentrate): Low CP levels (176, 174, 191 g/kg CP); SB (Soybean meal): Low CP levels (177, 176, 191 g/kg CP); and XLA (X-low CP + AA): Very low CP levels (154, 151, 191 g/kg CP) with AA. The PC and XLA diets reduced diarrhoea by 41 and 61%, respectively, compared to the NC group, while no difference between SB and SP were observed. The XLA diet reduced feed intake and daily gain compared with PC and NC, where SP, SB, and XLA had a poorer feed conversion compared with PC. Conclusively, the SP and SB low-protein diets did not reduce diarrhoea or growth performance, whereas the XLA diet decreased both diarrhoea and performance.
ISSN:2076-2615
2076-2615
DOI:10.3390/ani11030678