Assessment of cecal microbiota modulation from piglet dietary supplementation with copper.

Background: Swine production expanded in the last decades. Efforts have been made to improve meat production and to understand its relationship to pig gut microbiota. Copper (Cu) is a usual supplement to growth performance in animal production.

Spray-Dried Plasma Improves Body Weight, Intestinal Barrier Function, and Tibia Strength during Experimental Constant Heat Stress Conditions.

The aim of this study was to see how spray-dried plasma (SDP) supplementation affected broiler chicken performance, intestinal permeability, and bone strength during persistent heat stress. One-day-old chicks ( = 480) were randomly assigned into twelve environmental corrals; four thermoneutral (TN-negative control, maintained at 24 °C from d 21-42); four heat stress (HS, exposed to 35 °C from d 21-42); and four heat stress treated with 2% SDP in the feed until d 28 followed by 1% SDP until d 42 (HS-SDP). The performance and serum levels of fluorescein isothiocyanate-dextran (FITC-d) were evaluated at d 21, 28, 35, and 42.

Field evaluation of feeding spray-dried plasma in the starter period on final performance and overall health of broilers.

The effect of feeding spray-dried plasma (SDP) during the starter period was evaluated with a commercial broiler integrator on performance and overall health of broilers. The I See Inside (ISI) methodology assessing gut health in broilers was used as a tool to evaluate the impact of dietary interventions under commercial conditions. One hundred farms with approximately 1.

Effect of dietary copper sources on performance, gastric ghrelin-RNA expression, and growth hormone concentrations in serum in piglets.

Two performance studies were conducted to investigate the effects of 3 different sources of Cu on production parameters of piglets. A total of 256 piglets weaned at 24 ± 2 d were randomly allocated into 4 treatments with 10 or 8 replicates per treatment of 4 or 3 piglets per pen in Exp. 1 and 2, respectively.

Impact of Spray-Dried Plasma on Intestinal Health and Broiler Performance.

Spray-dried plasma (SDP) is a functional ingredient commonly utilized in swine production and calf milk replacers to improve performance, feed efficiency, and health. The improvements noted with SDP in animal production are more pronounced under commercial production conditions compared to cleaner research settings. Multiple modes of action of SDP have been proposed, including either directly influencing the immune inflammatory response locally or systemically, and/or through the indirect modification of beneficial microbial populations.

Effect of Feeding Spores to Broilers Challenged with serovar Heidelberg Brazilian Strain UFPR1 on Performance, Immune Response, and Gut Health.

Salmonellosis is a poultry industry and public health concern worldwide. Recently, serovar Heidelberg (SH) has been reported in broilers in Brazil. The effect of feeding a blend of three strains of (PRO) was studied in broilers orally challenged (10 CFU/chick) or not with a SH isolated in south of Brazil (UFPR1 strain).

Phenotypic and Genotypic Features of a Heidelberg Strain Isolated in Broilers in Brazil and Their Possible Association to Antibiotics and Short-Chain Organic Acids Resistance and Susceptibility.

serovar Heidelberg is a human pathogen also found in broilers. A strain (UFPR1) has been associated with field reports of resistance to short-chain organic acids (SCOA) in broilers in the South of Brazil, but was susceptible to a -based probiotic added in feed in a related study. This work aimed to (i) report clinical symptoms caused by SH UFPR1 in broilers, (ii) study its susceptibility to some antibiotics , and (iii) SCOA ; and (iv) relate these phenotypic observations with its genome characteristics.