Effect of Dietary Energy on Performance, Egg Components, Egg Solids, Egg Quality and Profits in Seven Commercial Leghorn Strains During Second Cycle Phase Two

Gunawardana, P.; Wu, G.; Yuan, Kun; Bryant, M. M.; Roland, D. A.

doi:10.3923/ijps.2009.323.327

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…Additional investigations have shown that genetic group significantly affects the weight of chickens of different ages [26]. Similar to the study of Gunawardana et al, (2009), the results of this study indicate that the body weights of broilers of the Aseel breed varied (p 0.05) at four weeks of age, which is consistent with the findings of this study [27]. Cyril et al 2010, monthly weighed RIRBPR and other pure chicken breeds, including barred Plymouth Rock (BPR) and Rhode Island Red (RIR) [19].…”

Section: Phenotypic Analysis and Growth Performance Of Rhode Island Redsupporting

confidence: 54%

Phenotypic Analysis and Growth Performance of Rhode Island Red, Barred Plymouth Rock and their Hybrid at Jaba Mansehra, Pakistan

Ullah¹,

Noreen

Khan

et al. 2023

PPASB

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Poultry farming is a big business in Pakistan. Poultry farming is a substantial supply of eggs and meat in rural areas, as well as a reliable source of income. Therefore the goal of this study is to compare the Rhode Island red, barred plymouth rock, and their hybrids’ phenotypic traits and egg-laying capacities. The 100-day-old Rhode Island Red, Barred Plymouth Rock, and cross chicks were used in the study at Jaba District Mansehra, KP, Pakistan. The whole flock was sheltered, fed, ventilated, and immunized. Breed 3 (Jabba 21) was reported to have the longest shanks (3.78 inches SL), followed by breed 1 (Rhode Island Red) and breed 2 (Barred Plymouth Rock) (3.47 inches SL). Breed 2 is the broadest shank at 0.47 SW, followed by Breed 1 at 0.43 SW and Breed 3 at 0.30 SW (0.43 Inches SW). The breadth of the shinbone did not change substantially from week 8 to week 13 (p=0.05), although body weight changed from week 1 to week 18. Breed 1 consumed the most feed (2,112 g), followed by Breed 3 (1,452 g) and Breed 2. (990 g). Breed 2 acquired the greatest amount of weight (1,638.57 g), followed by Breed 1 (1,557.07 g) and Breed 3. (1530.3 g). From the first to the eighteenth week of observations, there was a significant (p0.05) difference between the three chicken breeds in weekly body weight gain. Breeds 1, 2, and 3 saw growth rates of 1st 63.59, 2nd 64.02 and 3rd 64.03 percent. This research gave us a fresh perspective on several products that might come to market and contend with one another. This study provides insight into what will work best for Pakistan’s poultry sector going forward in the future.

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Section: Phenotypic Analysis and Growth Performance Of Rhode Island Redsupporting

confidence: 54%

Phenotypic Analysis and Growth Performance of Rhode Island Red, Barred Plymouth Rock and their Hybrid at Jaba Mansehra, Pakistan

Ullah¹,

Noreen

Khan

et al. 2023

PPASB

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“…( 2006 ) reported higher HU when laying hens were fed a low protein diet (14%) compared to a high protein diet (19%). Contradictorily, several articles have reported no impact on HU when evaluating different energy and protein intake levels (Valkonen et al., 2008 ; Gunawardana et al., 2009 ; Wall et al., 2010 ). The confound of the housing system has only slightly been explored with Valkonen et al.…”

Section: Resultsmentioning

confidence: 99%

“…Significant differences are only observed between the enriched and aviary housing systems at the highest levels of PCA 2. Several articles have reported no nutritional impact on whole egg solids when evaluating different nutrient and energy intake levels (Gunawardana et al., 2009 ; Yuan et al., 2009 ) as well as no differences between housing systems when evaluating changes in long-term egg storage (Jones et al., 2014 ).…”

Section: Resultsmentioning

confidence: 99%

Impact of commercial housing systems and nutrient and energy intake on laying hen performance and egg quality parameters

et al. 2015

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The US egg industry is exploring alternative housing systems for laying hens. However, limited published research related to cage-free aviary systems and enriched colony cages exists related to production, egg quality, and hen nutrition. The laying hen's nutritional requirements and resulting productivity are well established with the conventional cage system, but diminutive research is available in regards to alternative housing systems. The restrictions exist with limited availability of alternative housing systems in research settings and the considerable expense for increased bird numbers in a replicate due to alternative housing system design. Therefore, the objective of the current study was to evaluate the impact of nutrient and energy intake on production and egg quality parameters from laying hens housed at a commercial facility. Lohmann LSL laying hens were housed in three systems: enriched colony cage, cage-free aviary, and conventional cage at a single commercial facility. Daily production records were collected along with dietary changes during 15 production periods (28-d each). Eggs were analyzed for shell strength, shell thickness, Haugh unit, vitelline membrane properties, and egg solids each period. An analysis of covariance (ANCOVA) coupled with a principal components analysis (PCA) approach was utilized to assess the impact of nutritional changes on production parameters and monitored egg quality factors. The traits of hen-day production and mortality had a response only in the PCA 2 direction. This finds that as house temperature and Met intake increases, there is an inflection point at which hen-day egg production is negatively effected. Dietary changes more directly influenced shell parameters, vitelline membrane parameters, and egg total solids as opposed to laying hen housing system. Therefore, further research needs to be conducted in controlled research settings on laying hen nutrient and energy intake in the alternative housing systems and resulting impact on egg quality measures.

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Effects of protease enzyme supplementation and varying levels of amino acid inclusion on productive performance, egg quality, amino acid digestibility, and economics of egg production in Hy-Line W-36 laying hen from 50 to 70 wk of age

Poudel,

Hodge,

Wamsley

et al. 2024

Journal of Applied Poultry Research

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Effect of Dietary Energy on Performance, Egg Components, Egg Solids, Egg Quality and Profits in Seven Commercial Leghorn Strains During Second Cycle Phase Two

Cited by 4 publications

References 16 publications

Phenotypic Analysis and Growth Performance of Rhode Island Red, Barred Plymouth Rock and their Hybrid at Jaba Mansehra, Pakistan

Phenotypic Analysis and Growth Performance of Rhode Island Red, Barred Plymouth Rock and their Hybrid at Jaba Mansehra, Pakistan

Impact of commercial housing systems and nutrient and energy intake on laying hen performance and egg quality parameters

Effects of protease enzyme supplementation and varying levels of amino acid inclusion on productive performance, egg quality, amino acid digestibility, and economics of egg production in Hy-Line W-36 laying hen from 50 to 70 wk of age

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