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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Effect of strain cross, gender, and sodium chloride concentrations on broiler meat quality

Lopez, Keyla 06 August 2011 (has links)
Effects of gender and strain cross on carcass characteristics, meat quality and sensory acceptability were studied. Strains consisted of a commercially available strain (Strain A), and a strain genetically selected to maximize breast yield currently in the test phase (Strain B). Broilers varying in gender and strain cross had similar compositional characteristics; all treatments yielded high quality breast and thigh meat and did not differ in sensory acceptability. Effect of salt concentrations on yields, instrumental quality, and sensory acceptability of broiler breast meat was determined. Breast fillets were vacuum-tumbled with different concentrations (0, 0.25, 0.50, 0.75, 1.00, 1.25 and 1.50%) of NaCl and 0.35% sodium tripolyphosphate (STP). Marination showed improvent in CIE L*, shear force, and cooking loss. Marinated samples were highly acceptable to the majority of consumers. Results indicate that 0.5-1.0 % NaCl could be used to effectively marinate broiler breast meat depending on product application and desired attributes.
2

Feed Quality Effects on Modern Heavy Broiler Performance

Sellers, Robert Benjamin 11 December 2015 (has links)
Commercial broilers are fed exclusively pelleted diets; this is due to research that has demonstrated numerous benefits to feeding pellets. The first objective was to investigate the effects of modest improvements in pellet quality on two modern broiler strains. Regardless of strain, feeding 80% pellets improved broiler performance from d 28 to 42. The second objective was to investigate the effects of feed form and liquid application method on feed augering segregation and subsequent broiler performance. In general, percent pellets steadily decreased across location throughout feed augering. Also, phytase segregation occurred throughout augering and was exacerbated in post-pellet liquid application diets. When the augered diets were fed to broilers, 75% pellets and post-pellet liquid application diets improved performance. The final objective was to investigate the change in percent pellets as feed was augered throughout an entire commercial poultry house. Ultimately, creating high-quality pellets decreases pellet attrition and improves broiler performance.

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