{"title":"Effects of production time, die condition, and feed mill on the physical quality of commercial broiler diets","authors":"K.W. McCafferty, J.L. Purswell","doi":"10.1016/j.japr.2024.100430","DOIUrl":null,"url":null,"abstract":"<div><p>A variety of milling conditions can impact the physical quality (pellet durability index (<strong>PDI</strong>) and feed form (<strong>FF</strong>) composition) of broiler diets. Likewise, FF composition has been observed to affect broiler prehension and feed consumption patterns. Numerical differences in nutrient composition between pellets and fines have also been reported. Therefore, feeding diets with poor physical quality may lead to variations in nutrient intake among broilers. Reductions in the physical quality of feed could be partially related to frictional die wear. However, no research has indirectly evaluated the effects of die wear (i.e., production time) on the physical quality of finished feed from commercial feed mills. Therefore, the objective of this experiment was to quantify the effects of production time, die condition (new or reconditioned), and feed mill on PDI and FF composition of finisher 1 broiler diets from 4 commercial feed mills over a 12-wk production period. Production time (<em>P</em> > 0.05) did not affect dietary PDI and FF composition during each production period. Die condition and feed mill interacted (<em>P</em> < 0.05) to affect FF composition at one feed mill with the new die producing a higher and lower concentration of pellets and crumbles, respectively, than the reconditioned die. However, feed mill (<em>P</em> < 0.05) affected all measures. Thus, the physical quality of broiler diets is not affected by production time but die condition may influence FF composition. However, this effect was feed mill dependent. Overall, feed mill was most responsible for the physical quality of broiler diets.</p></div>","PeriodicalId":15240,"journal":{"name":"Journal of Applied Poultry Research","volume":"33 3","pages":"Article 100430"},"PeriodicalIF":1.6000,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1056617124000291/pdfft?md5=d1fa2ae5507ae822e4f0c0a650a9fbe2&pid=1-s2.0-S1056617124000291-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Poultry Research","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1056617124000291","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
A variety of milling conditions can impact the physical quality (pellet durability index (PDI) and feed form (FF) composition) of broiler diets. Likewise, FF composition has been observed to affect broiler prehension and feed consumption patterns. Numerical differences in nutrient composition between pellets and fines have also been reported. Therefore, feeding diets with poor physical quality may lead to variations in nutrient intake among broilers. Reductions in the physical quality of feed could be partially related to frictional die wear. However, no research has indirectly evaluated the effects of die wear (i.e., production time) on the physical quality of finished feed from commercial feed mills. Therefore, the objective of this experiment was to quantify the effects of production time, die condition (new or reconditioned), and feed mill on PDI and FF composition of finisher 1 broiler diets from 4 commercial feed mills over a 12-wk production period. Production time (P > 0.05) did not affect dietary PDI and FF composition during each production period. Die condition and feed mill interacted (P < 0.05) to affect FF composition at one feed mill with the new die producing a higher and lower concentration of pellets and crumbles, respectively, than the reconditioned die. However, feed mill (P < 0.05) affected all measures. Thus, the physical quality of broiler diets is not affected by production time but die condition may influence FF composition. However, this effect was feed mill dependent. Overall, feed mill was most responsible for the physical quality of broiler diets.
期刊介绍：
The Journal of Applied Poultry Research (JAPR) publishes original research reports, field reports, and reviews on breeding, hatching, health and disease, layer management, meat bird processing and products, meat bird management, microbiology, food safety, nutrition, environment, sanitation, welfare, and economics. As of January 2020, JAPR will become an Open Access journal with no subscription charges, meaning authors who publish here can make their research immediately, permanently, and freely accessible worldwide while retaining copyright to their work. Papers submitted for publication after October 1, 2019 will be published as Open Access papers.
The readers of JAPR are in education, extension, industry, and government, including research, teaching, administration, veterinary medicine, management, production, quality assurance, product development, and technical services. Nutritionists, breeder flock supervisors, production managers, microbiologists, laboratory personnel, food safety and sanitation managers, poultry processing managers, feed manufacturers, and egg producers use JAPR to keep up with current applied poultry research.
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