Browsing by Department "Poultry Science"
Now showing items 41-60 of 136
Effect of different protein sources on intestinal crypt cell proliferation and density of macrophages in neonatal piglets
(2021-11-22)
Pre-weaning mortality is one of the major concerns for the swine industry since it can negatively affect production efficiency. Since the piglet immune system is not fully developed at birth, they are more likely to suffer ...
Effect of Eggshell Translucency and Color on Broiler Egg Hatchability and Chick Quality and its Relationship with Other Eggshell Quality Parameters
(2023-11-29)
A successful hatch has a considerable economic impact on the poultry industry. The relationship between eggshell quality and hatchability has been demonstrated over the years through parameters such as thickness, eggshell ...
The Effect of Gelatin and Dietary Crude Protein Level on Broilers Vaccinated for Coccidiosis
(2008-08-15)
Vaccinating for coccidiosis has been shown to adversely affect live performance of broilers compared to those given a dietary anticoccidial. Feeding diets with higher crude protein alleviates negative response to vaccination, ...
Effect of incubation temperature variation and genetic selection on broiler chicken growth performance, skeletal muscle growth characteristics, and meat yield
(2018-11-14)
Throughout the last 5 decades, the broiler industry has focused its efforts toward higher meat yields and more efficient production, leading to the adoption of state-of-the-art technology for production and as a way of ...
Effect of Management on the Bacterial Community Present in Poultry Litter
(2012-07-16)
An unwanted byproduct of commercial broiler chicken grow out is thousands of
tons of litter. This litter is the material on which the broiler chicken spends its entire life.
Litter consists of a starting material, ...
Effect of maternal and post-hatch dietary 25-hydroxycholecalciferol supplementation on broiler chicken growth characteristics and skeletal muscle satellite cell activity
(2020-07-14)
Including the vitamin D3 (D3) metabolite, 25-hydroxycholecalciferol (25OHD3) in broiler diets, has been shown to enhance the proliferative activity of skeletal muscle satellite cells (SC), induce the expression of pro-myogenic ...
Effect of maternal and post-hatch supplementation of 25-hydroxycholecalciferol on duodenal crypt cell proliferation and local innate immunity of broiler chickens
(2021-12-01)
Previously published studies have demonstrated that maternal supplementation of the circulating metabolite of vitamin D3 (D3), 25-hydroxycholecalciferol (25OHD3) enhances immunocompetence of broiler chick offspring. In ...
Effect of Phytase and Glucanase, Alone or in Combination, on Nutritive Value of Corn and Soybean Meal Fed to Broilers
(2006-12-15)
In order to efficiently use exogenous enzymes, the effects of these products on nutrient availability must be determined. A series of experiments were designed to evaluate a phytase and a glucanase supplemented to ...
The Effect of Post-chill Antimicrobials on Salmonella, Campylobacter, Shelf-life and Quality Attributes of Ground Chicken
(2013-07-10)
Ground chicken is more likely to have higher microbiological loads than whole carcasses and parts. Therefore, it is necessary to identify antimicrobials that reduce pathogens and overall microbial loads without negatively ...
Effect of pre-pelleting whole corn inclusion on growth performance, processing yield, meat quality, gut microbiome, and digestive organ development at different grow-out phases of broilers.
(2020-11-16)
Corn is typically ground before its incorporation into broiler diets. However, grinding is the second most expensive cost center of feed manufacturing after pelleting. Therefore, feeding whole corn can be an alternative ...
Effect of structure forming agent inclusion on color, physicochemical, and textural characteristics of pet treats derived from upcycled broiler chicken wing tips
(2023-07-28)
Pet food industry's demand for animal-based protein presents an opportunity for the broiler industry to repurpose undervalued co-products, which could yield higher profits compared to rendering processes. Two experiments ...
Effect of thermal manipulation during late-stage incubation on broiler chicken hatchability, growth performance, carcass characteristics, and breast meat quality defects
(2023-07-31)
Incubation temperature is one of the most important factors determining embryonic development and hatchability. Duration and timing of thermal manipulation (TM) alters egg moisture loss, hatchability, chick body weight ...
Effectiveness of Several Antimicrobials Used in Parts Decontamination Tank to Kill Salmonella and Campylobacter on Chicken Parts
(2014-05-02)
Research was conducted to determine the optimal contact time and effectiveness of antimicrobials (0.003% chlorine; 0.07% or 0.1% peracetic acid (PAA); or 0.35% or 0.60% Cetylpyridinuium Chlorine (CPC)) added to a parts ...
Effects of Assay Methodology and Standardization for Endogenous Losses of Energy on Determination and Additivity of Metabolizable and Digestible Dietary Energy for Broilers
(2022-11-16)
Efficient broiler production requires providing birds with diets with appropriate energy density. A lack of additivity of dietary energy could lead to under- or over-supplying energy to broilers. Additivity may be affected ...
Effects of Calcium Feeding Strategy, Dietary Adaptation Period Length, and Diet Composition on Phosphorus Availability for the Determination of True Phosphorus Utilization in Growing Broilers
(2016-01-07)
Standard methods have been proposed for the determination of P availability using the true P utilization (TPU) protocol. However, reported TPU data have been variable between common feedstuffs. Therefore, a series of 4 ...
Effects of cool water washing of shell eggs on haugh unit, vitelline membrane strength, aerobic bacteria, yeast, and mold
(2007-12-15)
Most retail shell eggs in the United States are washed in water that can be upwards of 49°C which increases the internal temperature of shell eggs. After processing, internal egg temperatures may be 6.1 to 7.8°C higher ...
Effects of Corn Particle Size and Feed Form on Growth Performance and Carcass Characteristics of Broilers
(2018-07-18)
Previous research has shown that manipulation of corn particle size and feed forms have an impact on broiler growth performance. The poultry industry grinds corn to approximately 800 µm before its incorporation into broiler ...
Effects of Corn Varying in Extractable Salt-Soluble Protein Content with Phytase and Xylanase Supplementation on Growth Performance and Nutrient and Energy Digestibility of Broilers Fed Diets Adequate in Calcium and Non-Phytate Phosphorus
(2012-11-15)
Extractable salt-soluble protein content can be assayed rapidly to help identify corn that may have been improperly dried or stored. Research indicates a relationship between this variable and broiler performance. ...
Effects of Diet Type and Ingredient Composition on Rate of Passage and Use of In Vitro Assays to Predict Amino Acid Digestibility of Animal Protein Meals in Broilers
(2012-04-27)
Ileal amino acid digestibility (IAAD) is used to characterize amino acid (AA) quality of animal protein meals (APM) for poultry, and IAAD assays utilize semi-purified (SP) diets. Nutrient utilization is influenced by rate ...
The Effects of Different De-feathering Methods on Salmonella Attachment to Chicken Skin and Antimicrobial Efficacy
(2016-07-22)
Chickens usually arrive at processing facilities with high populations of microorganisms. Salmonella is a major concern in poultry and poultry products in regards to food safety. During the initial steps of slaughter (i.e., ...