Effects of Alternative Molting Programs and Population on Layer Performance: Results of the Thirty-Fifth North Carolina Layer Performance and Management Test

Anderson, K. E.; Havenstein, G. B.

doi:10.1093/japr/16.3.365

Cited by 16 publications

(5 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Vermaut et al [27] demonstrated that jojoba meal, a by-product from the extraction of oil from jojoba seeds, was an ideal low-cost local feed source with no adverse effects. Anderson and Havenstein [28] investigated the use of low-protein, low-energy diets with minimal nutrients for body maintenance and livability during induced molting.…”

Section: Alternative Feeding Methodsmentioning

confidence: 99%

Tomato pomace and safflower meal as ingredients in non-feed-removal molt diets

Patwardhan

King

Mireles³

2011

Journal of Applied Poultry Research

View full text Add to dashboard Cite

Section: Alternative Feeding Methodsmentioning

confidence: 99%

Tomato pomace and safflower meal as ingredients in non-feed-removal molt diets

Patwardhan

King

Mireles³

2011

Journal of Applied Poultry Research

View full text Add to dashboard Cite

“…Koelkbeck and Anderson demonstrated in laying hens that postmolt egg production utilizing non-feed withdrawal techniques are comparable to feed and water restriction [43]. Non-feed withdrawal techniques use low protein/energy, high fiber maintenance diets utilizing various feed ingredients such as corn, dried distillers' grain, soybeans hulls, alfalfa, and wheat middlings [44][45][46][47][48] to slow or stop egg production. Before induced molting could be considered an accepted option, research would be needed to determine the effectiveness of non-feed withdrawal techniques in turkey breeder hens.…”

Section: Resultsmentioning

confidence: 99%

Effect of a Direct-Fed Microbial on Reproductive Performance in Late Lay Turkey Breeder Hens

KN¹,

KE²,

JL³

2019

J Anim Sci Res

View full text Add to dashboard Cite

The addition of probiotics to poultry diets has been explored as a method to improve immune health [3], increase egg quality parameters [4], improve feed conversion [5,6], and reduce pathogen colonization and shedding [7]. Probiotics, also called direct-fed microbials (DFM), are defined as a live microbial feed supplement which beneficially affects the host by improving its intestinal microbial balance [8]. Direct fed microbials are relatively inexpensive and can be easily added to both feed and water at anytime in the production cycle. Russell and Grimes investigated the effect of a dietary DFM on the performance of commercial turkeys [6]. The addition of a DFM resulted in improved mean body weight (BW) and feed conversion ratio (FCR) in female and male turkeys reared to 18 and 20 weeks, respectively [6]. In addition, in two field trials, water delivered DFM resulted in a nominal improvement in bird livability, mean BW, total farm weight of birds, and FCR while cost of production was decreased ($0.0195/kg). Davis and Anderson also reported significant

show abstract

“…The results from this data suggest that the selection of these layers over the 70+ years was focused on uniformity rather than body weights which did impact feed conversion of the pullets reared in the same environment and current commercial diets. This study indicates that selection preferences for desirable traits such as body weights and feed conversion have been successfully implemented for optimal performance subsequently in the layer phase [6][7][8][9][10].…”

Section: Conclusion and Applications A)mentioning

confidence: 87%

Influence of Genetic Selection on Rearing Parameters and Production Performance of Two Leghorn Type Pullets, 1940 Random-Bred Control Versus W-36 (2016) Commercial Strain Grown under the Same Regimen

Narayanan

2023

Arch Agri Res Technol

View full text Add to dashboard Cite

The aim of this study was to expand the period of selection history by evaluating the pullet growth characteristics of two genetic stocks of Leghorns reared under identical conditions 1940 Leghorn Strain (WL40) from the University of Arkansas and a 2016 Commercial Hy-Line W-36 (WLCC) from Hy-Line were housed in the same environment, comparing rearing production characteristics from the day of hatch until 16 weeks of age. All chicks were hatched at the Prestage Department of Poultry Science at North Carolina State University and raised in the same cage-rearing facility, with 14 birds per brooding cage then reduced to 10 birds per cage. Pullets were weighed bi-weekly, and feed weigh-backs were concurrent to determine body growth, feed consumption, and utilization. Pullet starter was fed from 0-6 weeks, a grower from 6-12 weeks, and a developer from 12-16 weeks. Diets were provided ad libitum, and mortality was recorded daily. The experiment was a randomized block design using a 2 ×3 factorial design, 2 genetic strains, and 3 dietary phase regimens and all data were statistically analyzed using a one-way ANOVA. Both strains responded similarly, showing an increase in body weights with the 2016 commercial strain exhibiting heavier weights with no significant differences (P>0.05) in all feed phases. Results from this data suggest that layer selection over the years had neutral adverse effects on body weights or feed conversion reared in the same environment and current commercial diet. This indicated that selection preferences for desirable traits such as body weights and feed conversion have been successfully implemented for optimal performance benefiting the 2016 pullet.

show abstract

Effects of Alternative Molting Programs and Population on Layer Performance: Results of the Thirty-Fifth North Carolina Layer Performance and Management Test

Cited by 16 publications

References 14 publications

Tomato pomace and safflower meal as ingredients in non-feed-removal molt diets

Tomato pomace and safflower meal as ingredients in non-feed-removal molt diets

Effect of a Direct-Fed Microbial on Reproductive Performance in Late Lay Turkey Breeder Hens

Influence of Genetic Selection on Rearing Parameters and Production Performance of Two Leghorn Type Pullets, 1940 Random-Bred Control Versus W-36 (2016) Commercial Strain Grown under the Same Regimen

Contact Info

Product

Resources

About