The aim of the present study was to develop a reproducible porcine infection model with Brachyspira hyodysenteriae. The influence of different factors was evaluated, namely, age, a diet containing large quantities of soybean meal, housing and administration of cortisol or antacids. Furthermore, the synergistic effect of additional bacteria (Escherichia coli O141, Bacteroides vulgatus or a mixtu...

Peptides from soybean meal were subjected to extrusion and the effects of extrusion conditions, such as moisture of the materials, barrel temperature, screw speed and nozzle diameter, on the antioxidant properties were studied. The extrusion conditions that had the highest free radical-scavenging activity were further separated into three peptide fractions (using ultra filtration); hydrolysis o...

Production of lovastatin and microbial biomass by Aspergillus terreus ATCC 20542 were influenced by the type of the carbon source (lactose, glycerol, and fructose) and the nitrogen source (yeast extract, corn steep liquor, and soybean meal) used and the C:N mass ratio in the medium. Use of a slowly metabolized carbon source (lactose) in combination with either soybean meal or yeast extract unde...

Porcine Epidemic Diarrhea Virus (PEDV), Porcine Delta Corona Virus (PDCoV), and Transmissible Gastroenteritis Virus (TGEV) are major threats to swine health and contaminated feed plays a role in virus transmission. The objective of our study was to characterize inactivation of PEDV, PDCoV, and TGEV in various feed ingredient matrices. Samples of complete feed, spray dried porcine plasma, meat m...

Gelatinase activity was detectable in the culture filtrates of 13 of 14 species of marine fungi tested. The fungi were grown under conditions of submerged culture in a medium consisting of corn meal, soybean meal, and CaCO(3). The degree of enzymatic activity did not necessarily correlate with the amino nitrogen content of the filtrates. Eight of the filtrates contained measurable quantities of...

The majority of animal feeding trials using GM feeds indicated no clinical effects while as concerns histopathological abnormalities in organs or tissues of exposed animals, the results are conflicting. Several data indicate liver and kidney problems as end points of GM diet effects. In rabbit fed GM soybean, it was hypothesised that cell metabolism of several enzymes was altered as well as ele...

We evaluated the nutritional value of broiler diets containing approximately 35% soybean meal from insect-protected soybean containing CrylAc protein, or from a similar nontransgenic control, or from 7 reference commercial soybean varieties. The feeding trial lasted 41 d, and each treatment consisted of 10 replicates of 1-d-old Ross 508 broilers (5 pens males and 5 pens females). Each pen conta...

Vegetable proteins such as soybean meal, canola meal and lupins are widely used as the main protein source in poultry diets. However, there is only limited information on the nutritive or anti–nutritive effects of indigestible non–starch polysaccharides in vegetable proteins. This review discusses a number of experiments which investigated the effects of feed enzymes on the utilisation of non–s...

This study compared diets supplemented with distillers dried grains plus solubles originating from whiskey distilling with those from fuel alcohol production or soybean meal. Forty-eight cows in mid and early lactation were offered a different dietary treatment in each of three 28-d periods. Dietary design included three supplements at 14 or 18% CP of dietary DM, with or without blood meal. Add...