experimental results and modeling of poultry carcass

Effects of feed form and feed particle size with dietary L

Sep 25 2014At the end of the experimental period two birds were slaughtered in each treatment and carcass analysis was carried out The results showed that the effect of feed form on body weight gain and feed intake in whole of experimental period was significant (P 0 05) Broilers fed pelleted diets had more weight gain than the mash group

Individual based modeling and analysis of pathogen levels

Dec 01 2017Our results indicate that the model is most sensitive to b the shed rate of bacteria and g the refresh rate of water per carcass processed The model is least sensitive to α (the scaling parameter that relates the pathogen kill rate in the water to the kill rate on carcass surfaces) and γ (the shed rate of organic matter from the carcass into

modified Weibull model for growth and survival of Listeria

Although some primary models have been developed to describe bacterial responses at refrigeration or frozen temperatures in meat and poultry products (Oscar 2002 Yoon et al 2004 Chowdhury et al 2005 Oscar 2011) studies regarding predictive models for the growth and survival characteristics of Salmonella Typhimurium and L

PoultryWorld

Jan 30 2019A study published in Poultry Science in 2016 investigated the efficacy of OH-Met and DL-Met in Pekin ducks Compared to a basal diet supplementation with methionine improved body weights and was dose dependent An exponential model of regression revealed a similar efficacy for growth between sources

Protocol for piloting new technology and procedures for

Treatment carcasses will be deemed to be in compliance whenever test results comply with the predetermined acceptance/rejection limits as specified in the application for the pilot project for example: if using the Shewart Control Chart then no bacteria count from a treatment carcass may exceed the Upper Control Limit (UCL)

Effects of different raising systems on growth performance

Effects of different raising systems on growth performance carcass and meat quality of medium-growing chickens Ying Lia b Chenglong Luoa b Jie Wanga b and Fuyou Guoa b aInstituteof Animal Science GuangdongAcademy ofAgricultural Sciences Guangzhou People's RepublicofChina bState KeyLaboratoryof Livestock and Poultry Breeding Guangzhou People's Republic of China

Traditional poultry inspection presentation standards

Parts Inside (weight of 1) Carcasses arriving with one or more of the visceral organs left in the cavity Contamination Inside (weight of 6) Carcasses arriving with contamination occurring on the inside surfaces of the carcass Mutilation (weight of 2) Carcasses arriving with internal mutilation caused by the vent or evisceration equipment 4 2

Incidence and Seroprevalence of Avian Influenza in a

Currently enzootic avian influenza H5N1 H9N2 and H5N8 viruses were introduced into poultry in Egypt in 2006 2011 and 2016 respectively Infections with H5N1 and H9N2 were reported among poultry-exposed humans We followed 2 402 persons from s raising backyard poultry from 5 villages in Egypt during August 2015–March 2019 We collected demographic exposure and health condition

Effects of different raising systems on growth performance

Effects of different raising systems on growth performance carcass and meat quality of medium-growing chickens Ying Lia b Chenglong Luoa b Jie Wanga b and Fuyou Guoa b aInstituteof Animal Science GuangdongAcademy ofAgricultural Sciences Guangzhou People's RepublicofChina bState KeyLaboratoryof Livestock and Poultry Breeding Guangzhou People's Republic of China

Tenderness Quality of Red Meat and Poultry

The experimental unit was individual strip loin (N=4) The experimental model was a 2 by 2 by 7 split-split plot design with the whole plot factor being bloom condition (Main effect: air or oxygen) the first split factor being lighting type (fluorescent or LED) and the second split factor being storage time (0 1 2 3 4 5 6 days)

Effect of Feed Restriction on Carcass Yield

Jan 01 2011Carcass yield characteristics and economic advantage of skip-a-day feed restriction method at different growth stages of Rhode Island Red chicken was evaluated Two-hundred forty day-old chicks with average body weight of 48 921 5 g were randomly distributed into 12 pens each with 20 chicks representing four feeding regimen of T 1 (Unrestricted Control) TSUB2/SUB

Federal Register :: Performance Standards for On

The on-line reprocessing of carcasses would occur after FSIS post-mortem inspection (in non-HACCP Inspection Models project plants) and the removal from the slaughter/processing line of carcasses extensively contaminated with digestive tract content or fecal material condemned poultry carcasses and parts or organs that are obviously

Nutrient requirements of broilers for optimum growth and

development of growth models is a valuable tool to understand nutrient deposition in poultry This article presents experimental results and methodologies used to obtain prediction equations for true digestible lysine requirements based on performance however higher dietary lysine levels are needed to minimize abdominal fat deposition

Reduction of Experimental Salmonella and Campylobacter

Bacterial food poisoning remains a major worldwide health problem Much of human Salmonella infection originates from poultry although pigs are thought to be increasing in significance albeit to an unknown extent () Thermophilic Campylobacter spp are the most frequently identified human enteric pathogen in England and Wales () with more than 56 000 fecal isolates made in 2000 ()

Effects of different raising systems on growth performance

Effects of different raising systems on growth performance carcass and meat quality of medium-growing chickens Ying Lia b Chenglong Luoa b Jie Wanga b and Fuyou Guoa b aInstituteof Animal Science GuangdongAcademy ofAgricultural Sciences Guangzhou People's RepublicofChina bState KeyLaboratoryof Livestock and Poultry Breeding Guangzhou People's Republic of China

Strain and effects on growth performance and carcass

INTRODUCTION In the past several decades changes have occurred in poultry meat market trends and consumers have shifted from the purchase of the whole chicken to carcass parts especially boneless and skinless broiler breast meat (Mehaffey et al 2006 Abdullah et al 2010) This change has driven the poultry industry to put an emphasis on the improvement of breast meat yield and muscle

Effects of different raising systems on growth performance

Effects of different raising systems on growth performance carcass and meat quality of medium-growing chickens Ying Lia b Chenglong Luoa b Jie Wanga b and Fuyou Guoa b aInstituteof Animal Science GuangdongAcademy ofAgricultural Sciences Guangzhou People's RepublicofChina bState KeyLaboratoryof Livestock and Poultry Breeding Guangzhou People's Republic of China

The impact of slaughter age on performance carcass traits

This growth curve model was more fitted to body weight-age data of poultry than other non-parametric regression models such as Richards Logistic Brody and Von Bertalanffy (Alkan et al 2009 Kizilkaya et al 2005) The daily body weight gain and daily feed conversion rate of the broiler chickens were estimated using the Gompertz growth

Effects of feed form and feed particle size with dietary L

Sep 25 2014At the end of the experimental period two birds were slaughtered in each treatment and carcass analysis was carried out The results showed that the effect of feed form on body weight gain and feed intake in whole of experimental period was significant (P 0 05) Broilers fed pelleted diets had more weight gain than the mash group

Understanding poultry spoilage

Nov 13 2009Approximately 9 billion chickens are processed in the U S each year of which 80% are marketed as fresh product It is estimated that 2% to 4% of this meat is lost as a result of poultry spoilage Therefore spoilage is of great concern to the poultry industry

Experimental results in the use of dimethylglycine sodium

The exponential regression model explains the growth of birds accordingly the expected weight on day 47 exceeds in 43g (T1000) and 42g (T500) the weight of the control group T0 In regard to carcass weight treated groups perform statistically better than control with better breast and leg yields (p 0 05)

Foods

The USDA-FSIS currently enforces Salmonella performance standards for fresh poultry products and conducts routine sampling of inspected establishments in order to test compliance with the performance standard At present a maximum of 5/51 (9 8%) of poultry carcass samples and 8/52 (15 4%) of poultry parts samples are allowed to bear detectable Salmonella without the establishment falling

Inactivation of Campylobacter during immersion chilling of

Jun 01 2017Some simulation results are presented in Table 2 Table 3 Table 4 for one completely mixed tank two tanks and three tanks Results are shown for several values of C 1 and O 1 in Table 2 The values of N 1 /N 0 give the fraction of viable Campylobacter that are on the carcasses as they leave the chill water The best result in Table 2 is for the largest value of C 1 and the smallest values

Effect of Feed Restriction on Carcass Yield

Jan 01 2011terms of carcass cut characteristics and T 4 on economic return Keywords Carcass Yield Characteristics Economic Advantages Feed Restriction Skip A -Day Rhode Island Red Pullet 1 Introduction In commercial poultry production system profit can be maximized by minimizing feed cost which accounts for more than half of the total cost of

STANDARD OPERATING PROCEDURE FOR MICROBIOLOGICAL

carcass test results (in colony forming units per gram: cfu/g) for all carcasses sampled on a given day see worked examples 4 3 4 4 3 5 and 4 3 6 Note: When computing the mean log value where the average bacterial counts may be less than 1 the logarithm of counts of

Evaluation of Escherichia coli isolates from healthy

Jul 03 2017Introduction The primary and secondary habitats of Escherichia coli are the intestinal tract of warm-blooded animals and the environment respectively In poultry as in humans Eli resides in the lower digestive tract which it colonizes in the first 24 h after hatching [] or birth [] Although many Eli strains are harmless commensals a subset have acquired the ability to cause

Effect of using high levels of soybean meal on performance

experimental birds were taken from each treatment and slaughtered to determine the carcass characteristics Results And Discussion Determination of the urease activity (UA) in SBM as indicator to their contents of antinutritional factors revealed value of 0 037 pH units These results

Bacterial Contaminants of Poultry Meat: Sources Species

With the constant increase in poultry meat consumption worldwide and the large variety of poultry meat products and consumer demand ensuring the microbial safety of poultry carcasses and cuts is essential In the present review we address the bacterial contamination of poultry meat from the slaughtering steps to the use-by-date of the products The different contamination sources are