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Evaluating the Influence of Genetics...

Wall, Dannica Charnae.

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Evaluating the Influence of Genetics and Advances in Hen Nutrient Requirements on Performance, Microbial and Intestinal Function, Bone Integrity, and Egg Production Efficacy on 1940 Vs. 2016 Commercial Laying Hens.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Evaluating the Influence of Genetics and Advances in Hen Nutrient Requirements on Performance, Microbial and Intestinal Function, Bone Integrity, and Egg Production Efficacy on 1940 Vs. 2016 Commercial Laying Hens./
作者:	Wall, Dannica Charnae.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
面頁冊數:	204 p.
附註:	Source: Dissertations Abstracts International, Volume: 85-01, Section: A.
Contained By:	Dissertations Abstracts International85-01A.
標題:	Physiology. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30516405
ISBN:	9798379871024

Evaluating the Influence of Genetics and Advances in Hen Nutrient Requirements on Performance, Microbial and Intestinal Function, Bone Integrity, and Egg Production Efficacy on 1940 Vs. 2016 Commercial Laying Hens.
Wall, Dannica Charnae.

Evaluating the Influence of Genetics and Advances in Hen Nutrient Requirements on Performance, Microbial and Intestinal Function, Bone Integrity, and Egg Production Efficacy on 1940 Vs. 2016 Commercial Laying Hens. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 204 p.

Source: Dissertations Abstracts International, Volume: 85-01, Section: A.

Thesis (Ph.D.)--North Carolina State University, 2023.

This item must not be sold to any third party vendors.

One of the most impactful advances in the last 100 years within the poultry industry has been poultry breeding. The vast majority of these improvements have come from genetic selection for improved feed efficiency, along with establishing the overall production system, and a better understanding of poultry nutrition. To date, there is limited information on the direct comparison of genetic changes and nutritional needs of hens from different eras. Understanding the effect of genetics and nutrition on performance, gut microbial function, bone integrity, and egg production, will help producers to identify steps that can be implemented to reduce stress levels associated with the production environments being selected. Previous research conducted by scientists has centralized their focus upon the modern production strains in modern facilities along with the interaction of the environment on those strains. Comparable research with laying hens to this capacity has not been conducted and unfortunately with the dispersion of the Canadian Random Bred Layer, this type of work has become more challenging to achieve. This current study was developed to provide an understanding of how genetic selection for intensive housing environments and increased egg production affect hens from different eras. This model has the ability to provide the industry with a valuable tool to help interpret and grasp the changes in the hen associated with the genetic response and health, further examining whether the hen's stress indicators are affected by intensive systems. The information generated will enable the evaluation of genetics and nutrition taking into account the changes in laying hens during the last 80+ years, physiological performance, and productivity.This study has concentrated on understanding the influence of genetic selection and the 1940s perspective of layer nutrition with a 2016 current commercial laying stock in conjunction with its ability to function within the 1940 nutrition and the current nutritional program that is available today. However, distinguishing the interplay of nutrition and selection on performance, microbiome and intestinal function, bone integrity, and egg production is vital in that it may allow the industry to identify a pathway to improve nutrition and or understand the genetics to further enhance overall health in laying hens. The results from this study suggested that the relationship between genetics and nutritional requirements of laying hens do correlate and interact with each other for performance, microbial and intestinal function, bone integrity, and egg production.

ISBN: 9798379871024Subjects--Topical Terms:

518431
Physiology.

Evaluating the Influence of Genetics and Advances in Hen Nutrient Requirements on Performance, Microbial and Intestinal Function, Bone Integrity, and Egg Production Efficacy on 1940 Vs. 2016 Commercial Laying Hens.
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