Estimate the contribution of incubation parameters influence egg hatchability using multiple linear regression analysis

Khalil, Mohamed Hassan; Shebl, M.K.; Kosba, M. A.; El-Sabrout, Karim; Zaki, Nesma

doi:10.14202/vetworld.2016.806-810

Cited by 17 publications

(10 citation statements)

References 7 publications

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“…Therefore, we used LED lamps in this study by exposing the Fayoumi eggs to complement LED lighting during the incubation to test its impact. Fayoumi chickens have a good hatchability percent as a local strain (Khalil et al, 2016). In agreement with previous study of Archer et al (2009), there was no significant effect of complement LED lighting on hatchability percent of eggs (Table I).…”

Section: Discussionsupporting

confidence: 91%

Effect of LED Lighting on Hatchability and Chick Performance of Chicken Eggs

El-Sabrout¹,

Khalil²

2017

PJZ

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Section: Discussionsupporting

confidence: 91%

Effect of LED Lighting on Hatchability and Chick Performance of Chicken Eggs

El-Sabrout¹,

Khalil²

2017

PJZ

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“…Algeria is one of the top producers of rabbit meat in Africa. The intensive production of rabbits (Oryctolagus cuniculus) has several advantages that solve a part of the worldwide shortage in animal protein [1,2]. Rabbit diet accounts for up to 70% of production costs [3], which are mainly due to the importation of most raw materials used in feed formulas.…”

Section: Introductionmentioning

confidence: 99%

Agro-industrial byproducts in rabbit food: Case of the complex of detoxified apricot kernel cake and dehydrated tomato pulp

et al. 2021

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Background and Aim: The use of agro-industrial byproducts as an unconventional source of raw materials for monogastric feed is one possible solution. This study aimed to determine the effects of incorporating detoxified apricot kernel meal (DAKM) as a substitute for soybean meal and dehydrated tomato pulp (DTP) as a substitute for alfalfa hay on the local rabbit fattening. Materials and Methods: A total of 120 white strain rabbits, weaned at 33 days, were randomly assigned to four groups of 30. The rabbits in each group were ringed, placed in cages at 6 rabbits/cage, and fed according to DAKM and DTP incorporation rates (0%, 30%, 40%, and 60%). Results: The weights at 77 days were improved (p<0.05) with unchanged mean daily intakes. The vast majority of slaughter parameters and carcass characteristics improved. The chemical composition of the meat constituents improved significantly, with a 60% increase in the protein content of the batch (26.55% vs. 28.53%), 38% reduction in the total feed cost, and 40 DA saved for each kilogram of feed consumed per rabbit. The relative economic efficiency improved in proportion to the substitution rates of soybean meal by DAKM and alfalfa hay by DTP. Conclusion: Substituting DAKM and DTP, as byproducts of agro-industrial processing, for up to 60% induced satisfactory results in rabbit fattening. Therefore, it would be more insightful to increase the incorporation rates to determine the optimal threshold.

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“…Production of rabbit has an important role in bridging shortage of food in many countries Khalil et al,(2016). For meat ofRabbit has several advantages including high protein content and low cholesterol content Hanaa et al,(2014).…”

Section: Introductionmentioning

confidence: 99%

The Genetic and Non-Genetic Affect on Carcass Characteristics of New Zealand White and Baladi Black Rabbits

El-Deighadi¹,

Gharib²,

EL-Nasr³

et al. 2021

المجلة العربیة للعلوم الزراعیة

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Data collected on 120random male at 12 weeks of age, from New Zealand white and Baladi Black rabbit. Data were analyzed applying multi-trait animal model ofcarcass characteristicsto obtain proportion of the phenotypic variance due to additive genetic effects (h 2 );common litter effects (c 2 ); random error effects (e 2 ); genetic (r G ), common litter (r C ), environmental (r E ) and phenotypic (r P ) correlations.Datawere carried out by weighed least-squares means method in the procedure GLM of statistical software SAS( 2003) to obtain least squares of effects for breed, parity and season and significant. Heritability estimateswere mostly moderate 0.20, 0.12 and 0.37 for live weight at slaughter, weight after bleedingand weight with viscera and without head,were moderate and high and ranged from 0.29 to 54 for edible parts, were moderate and ranged from 0.30 to 0.35 for dressing yield, alsowere low and moderate and ranged from 0.03 to 0.33 for inedible parts.Common litter effects Estimates were 0.37, 0.55 and 0.55 for live weight at slaughter, weight after bleedingand weight with viscera and without head, were ranged from 0.28 to 0.60 for edible parts, were estimates ranged from 0.38 to 0.42for dressing yield and ranged from 0.42 to 0.55 inedible parts.All possible genetic correlations betweencarcasscharacteristics were moderate to highandpositive except among TEDand both of LU and FUR, also between DR1 and VIS were negative.Common litter correlationsamongrecords ofcarcasscharacteristicswere mostly moderate or high, positiveand negative.Correlations ofenvironmental betweencarcasscharacteristicswere mostly moderate or high, positive and negative. Estimates of (r P )between records of different carcasscharacteristicswere mainly positive and moderate or high magnitude. No significant differences of breed on carcass characteristics except for giblet. New Zealand White had highest of giblet and leaver. In mostly

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Estimate the contribution of incubation parameters influence egg hatchability using multiple linear regression analysis

Cited by 17 publications

References 7 publications

Effect of LED Lighting on Hatchability and Chick Performance of Chicken Eggs

Effect of LED Lighting on Hatchability and Chick Performance of Chicken Eggs

Agro-industrial byproducts in rabbit food: Case of the complex of detoxified apricot kernel cake and dehydrated tomato pulp

The Genetic and Non-Genetic Affect on Carcass Characteristics of New Zealand White and Baladi Black Rabbits

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