Two studies, arranged according to a 4 × 4 Latin square design, were conducted to assess effects of dietary acidification on fungal 3-phytase (PHY) efficacy in growing pigs. In Exp. 1, effects of supplementing 500 units/kg feed of PHY and 4.7 g/kg HCOOH either alone or in combination on the use of P and Zn in growing pigs fed a pelleted diet based on wheat (Triticum aestivum), barley (Hordeum vulgare), and soybean (Glycine max) meal were investigated. In Exp. 2 the same dietary treatments were fed except that PHY supplementation was increased to 1000 units/kg. In both experiments, PHY supplementation increased (P < 0.05) P digestibility and retention. A PHY × HCOOH supplementation interaction on P balance was observed (P < 0.05), indicating that the combination of the additives may increase P digestibility and retention. Effects of HCOOH and PHY on Zn use followed a similar pattern. Supplementation of 1000 units/kg of PHY further increased P and Zn retention compared to supplementation of 500 units/kg. In conclusion, the present study indicated that HCOOH supplementation to diets with microbial PHY may increase PHY efficacy.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.2527/jas.53943 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Assessing the detection and interaction of and porcine circovirus 2 in low and high-performance wean-to-finish pig groups in different porcine reproductive and respiratory syndrome virus detection scenarios.
Front Vet Sci
January 2025
Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, United States.
Introduction: Effective disease management strategies are essential for achieving optimal pig performance, ensuring high-quality animal health and welfare, and maintaining the economic viability of swine systems. Thus, understanding factors that lead to more or less severe disease are critically important. Porcine circovirus type 2 (PCV2) and () are endemic pathogens in the U.
View Article and Find Full Text PDFAssociation between biosecurity and zoonotic transmission of LA-MRSA CC398 from industrial pig farms to farm workers and their household members.
Occup Environ Med
January 2025
Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Kobenhavn, Denmark.
Background: Zoonotic transmission of livestock-associated methicillin-resistant clonal complex 398 (LA-MRSA CC398) from industrial pig farms to farm workers and their household members and secondary transmission to elderly and immunocompromised persons has led to a growing number of serious infections and even death.
Objective: We tested the hypothesis that conventional pig farms confer a higher risk for LA-MRSA CC398 carriage among farm workers and their household members than specific pathogen-free (SPF) farms, which follow a set of stringent rules concerning biosecurity, health control and transportation of pigs between herds.
Methods: We conducted a cross-sectional study of farm workers and their household members from 25 Danish pig farms positive for LA-MRSA CC398.
Digested Ingredients as Substitute for Ileal Digesta in Assessing Protein Fermentation Potential in Growing Pigs.
Br J Nutr
January 2025
Animal Nutrition Group, Department of Animal Sciences, Wageningen University & Research, Wageningen, The Netherlands.
Understanding protein fermentation in the hindgut of pigs is essential due to its implications for health, and ileal digesta is commonly used to study this process . This study aimed to assess the feasibility of utilizing digested residues as a replacement for ileal digesta in evaluating the protein fermentation potential. residues from cottonseed meal, maize germ meal, peanut meal, rapeseed cake, rapeseed meal, soybean meal and sunflower meal were analysed using a modified gas production (GP) technique and curve fitting model to determine their fermentation dynamics and compare with the use of ileal digesta.
View Article and Find Full Text PDFInfluence of feeding thermally peroxidized lipids on the performance of growing pigs.
J Anim Sci
January 2025
University of Minnesota, Department of Food Science and Nutrition, St. Paul, MN 55108 USA.
Article Synopsis
- Feeding pigs lipids with high levels of lipid oxidation products (LOP) negatively impacts their growth performance, but the specific quantitative relationship between LOP and pig growth metrics like growth rate and feed efficiency has not been fully established.
- Four experiments were conducted using varying sources of lipids, such as soybean oil, choice white grease, and palm oil, with specific percentages included in pig diets to evaluate how different levels of LOP affected pig performance.
- The results showed significant statistical relationships between dietary lipid oxidation levels (measured by peroxide and anisidine values) and key performance indicators like average daily gain (ADG) and feed intake (ADFI), which can help predict how oxidized lipids in feed affect pig
Detection of porcine reproductive and respiratory syndrome virus type 2 in air emissions from grow-finish barns.
Vet Rec
January 2025
Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota, USA.
Background: Diagnosis of porcine reproductive and respiratory syndrome virus (PRRSV) infections can be accomplished using various sample types and testing methods. The objective of this study was to evaluate the feasibility of using air emission samples to detect the onset of PRRSV type 2 infections in growing pigs.
Methods: Air emissions and oral fluid samples were collected from three grow-finish barns, stocked with PRRSV-negative pigs every 2 weeks for 14-20 weeks.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!