Objective: To determine whether withdrawing feed from pigs prior to slaughter had any effects on prevalence or severity of gastric ulcers.
Design: Split-plot design.
Animals: 873 pigs.
Procedures: At the finishing barn, pigs were assigned to 30 pens. Feed withdrawal times (0, 12, or 24 hours) were assigned to pens at random, and pigs in each pen were marketed in 3 groups over a period of 4 weeks. The first marketing group consisted of the 10 heaviest pigs in each pen, the second consisted of the next 10 heaviest, and the third consisted of all remaining pigs. Feed was withheld from all pigs in each pen prior to removal of each marketing group. Thus, feed was withheld once, twice, or 3 times for pigs in the first, second, and third marketing groups, respectively.
Results: Feed withdrawal time was not significantly associated with ulcer score at the time of slaughter. Ulcer scores and prevalence of chronic damage were higher in the third marketing group, regardless of feed withdrawal time. Prevalence of severe damage, prevalence of chronic damage, and prevalence of esophageal constriction increased as carcass weight decreased. No pigs died of gastric ulceration.
Conclusion And Clinical Relevance: Results suggest that withdrawal of feed from pigs prior to slaughter does not increase damage to the stomach and that repeated feed withdrawal does not result in fatal gastric ulceration.
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http://dx.doi.org/10.2460/javma.2002.220.503 | DOI Listing |
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December 2024
National Feed Drug Reference Laboratories, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
The poultry red mite (PRM), Dermanyssus gallinae, a significant ectoparasite causing diseases in poultry, is globally prevalent and necessitates effective control strategies. There are restrictions on the use of acaricides in poultry across several nations due to worries about medication residues. Consequently, finding safe and efficient treatments for PRM is imperative.
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December 2024
Department of Poultry Science, University of Arkansas Division of Agriculture, Fayetteville 72701, USA.
Salmonellae remain a prominent issue for poultry products regarding food safety. A predominant source of broiler carcass contamination at processing is from crop rupturing and subsequent contamination of the carcass during evisceration. Chlorhexidine (CHX) salts are commonly used in dental products for their antimicrobial capabilities.
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December 2024
College of Animal Science and Technology, Ningxia University, Yinchuan, Ningxia 750021, China.
Poult Sci
November 2024
School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Camperdown NSW 2006, Australia; Poultry Research Foundation, The University of Sydney, Camden NSW 2570, Australia.
This study aimed to assess the interactive effects of ME and digestible amino acid (AA) densities on carcass yield, breast meat quality, nutrient digestibility, and excretion in male broiler chickens. Twelve experimental diets arranged as a 4 × 3 factorial array with 4 levels of ME (standard, -50, -100, -150 kcal) and 3 digestible AA (standard, +3.0 and +6.
View Article and Find Full Text PDFAnim Biosci
October 2024
Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea.
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