Effects of Genotype and Housing System on the Laying Performance 
of Chickens in Different Seasons in the Semi-Humid Tropics

Yakubu, Abdulmojeed; Salako, A. E.; Ige, A. O.

doi:10.3923/ijps.2007.434.439

Cited by 44 publications

(41 citation statements)

References 8 publications

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“…This could be attributed to difference in genetic potential of different strains used. This was in agreement with the reports of Majaro (2001) and Yakubu et al (2007).…”

Section: Egg Productionsupporting

confidence: 83%

Study on productive performances and egg quality traits of exotic chickens under village production system in East Shewa, Ethiopia

Tadesse¹,

Harpal²,

Ashenafi³

et al. 2013

Afr. J. Agric. Res.

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The study was conducted to determine productive performances and egg quality traits of Isa Brown (IB), Bovan Brown (BB) and Potchefstroom Koekoek (PK) under village production system in Ada'a and Lume districts of East Shewa, Ethiopia. A total of 180 randomly selected smallholder farmers were included in the study from six purposively selected Peasant Associations (PAs) from the two districts. Information was obtained on average eggs/year and age at first laying, while hen's body weight was measured directly during survey and egg collection. The average egg production/year was 276.1, 266.32, and 187.04 eggs for IB, BB and PK, respectively. The average age at first laying was 160.5, 165.5 and 153.3 days for IB, BB and PK, respectively. The strain BB was superior for egg weight, yolk height, albumen height (AH), albumen weight, Haugh unit (HU) and eggshell thickness than IB and PK. The IB was found to be superior to BB and PK for yolk weight, whereas PK was superior to IB and BB for yolk colour. In this study, the egg quality traits obtained from these layers was a good quality at village level, while to better conclude on the average number of egg /bird/year, it may need further study through considering the amount and types of feed supplement by farmers and proper recording on the number of eggs laid.

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“…This could be attributed to difference in genetic potential of different strains used. This was in agreement with the reports of Majaro (2001) and Yakubu et al (2007).…”

Section: Egg Productionsupporting

confidence: 83%

Study on productive performances and egg quality traits of exotic chickens under village production system in East Shewa, Ethiopia

Tadesse¹,

Harpal²,

Ashenafi³

et al. 2013

Afr. J. Agric. Res.

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“…This agrees with Olawumi and Dudusola (2012), and Yakubu et. al (2007) who reported that Bovans Nera genotypes are more feed efficient and converted feeds given to produce more eggs than the other strain under the same condition The only explanation for this difference can be attributed to genotype variability.…”

Section: Methodssupporting

confidence: 91%

“…The same trend applied to Bovans Goldline. However, the live weights between pullet strains were statistically significant at 5% of significance at in contradiction with Yakubu et al (2007) who reported that Lohmann Brown hens had significantly higher body weight compared with others. The differences between the two studies might be due to differences in age of birds, management and other environmental conditions which vary from one location to another.…”

Section: Methodscontrasting

confidence: 89%

Comparative Performance of Bovans Nera (Rhode Black) and other Commercial Pullet Strains

Imouokhome¹,

Ojogho²

2012

Not Sci Biol

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The present study examined the comparative performance between Bovans Nera and other commercial pullet strains in Nigeria. This study was carried out in the pullet house at the Teaching and Research Farm of the University of Ibadan, Ibadan, Nigeria, from January to April, 2002. The experiment was carried out to compare the growth performance and profitability of Bovans Nera with three other commercial pullet strains, Bovans Godline, Lohmann White and Lohmann Tradition. All data collected were subjected to the analysis of variance using the SAS General Linear Model procedure. Differences between treatment means were separated using Duncans New Multiple Range Test. Profitability was assessed using net returns by subtracting costs (rearing pullet, feed and packaging excluding overheads and labour) from income (from egg sales and spent birds). The results showed that Bovans Nera was better in feed conversion ratio, feed efficiency (a greater weight gain per unit feed intake) and attained a greater weight and a better market value than the other pullet strains. There was a higher production cost for Bovans Nera when compared with other strains. However, Bovans Nera will give more returns on investment even when their eggs are translated to monetary terms. These differences can be attributed to variation in the genetic constitution of individual strains.

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“…The authors revealed that hybrid layers lack self-replacing ability at village level due to their low mothering ability and broodiness and higher demand for exotic chickens by farmers to rear under improved village production system. This result is comparable to the findings of Tixier-Boichard et al [63] using commercial Brown egg layer and a local breed, the Fayoumi. Yakubu et al [64] showed that Lohmann Brown was superior to Bovans Brown in body weight.…”

Section: Breedsupporting

confidence: 81%

A critical review of production factors that influ-ence egg quality traits

2017

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The global poultry industry has experienced significant changes in the methods used to harvest and process the fresh egg over the past century. Applications of animal genetics and breeding have significantly increased in line speed for poultry operation. In this study aims at reviewing production factors that influence egg quality traits across the globe. The production factors so far utilized were classified into three main categories and presented based on their influencing capacity. For this purpose, two types of search criteria to find publications relevant to the scope of this review were employed. The first type was an automatic search performed on the following publishers' databases: ScienceDirect, Google's scholar, researcher gates, academia. The second type was a manual search on conferences, recent theses and dissertation that have not been published in journals from numerous Babcock University. Generally, 23 publications were reported for the breed; 17 for housing, and 19 for age of the breed after excluding studies that do not focus explicitly on breed, housing and age of the bird as production factors that influenced egg quality traits out of 183 potential relevant articles identified from

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Effects of Genotype and Housing System on the Laying Performance of Chickens in Different Seasons in the Semi-Humid Tropics

Cited by 44 publications

References 8 publications

Study on productive performances and egg quality traits of exotic chickens under village production system in East Shewa, Ethiopia

Study on productive performances and egg quality traits of exotic chickens under village production system in East Shewa, Ethiopia

Comparative Performance of Bovans Nera (Rhode Black) and other Commercial Pullet Strains

A critical review of production factors that influ-ence egg quality traits

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