Effects of egg weight on hatchability, chick hatch-weight and subsequent productivity of indigenous venda chickens in polokwane, South Africa

J. W. Ng'ambi, M. W. Thamaga, D. Norris, M. Mabelebele, O. J. Alabi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A study was conducted to determine the effect of egg weight on hatchability, chick hatch-weight, mortality and subsequent productivity of indigenous Venda chickens. Three hundred and sixty indigenous Venda chicken eggs were collected for a period of a week and selection was done based on the weight of the eggs. A complete randomized design was used, with four treatment weights, each with 90 eggs. The four treatment weights were as follows: below 49 g, between 50 and 59 g, between 60 and 69 g, and above 70 g. Egg weight was positively and strongly correlated with egg hatchability (r2 = 0.727) and chick hatch-weight (r2 = 0.953). Heavier-sized eggs hatched chicks had higher mortality rates. Growth rate and live weight of the chickens were optimized at different egg weights of 56 (r2 = 0.657) and 60 (r2 = 0.870) g, respectively, for chickens aged 1 to 7 weeks, and egg weights of 61 g (r2 = 0.514) and 60 g (r2 = 0.948), respectively, for chickens aged 8 to 13 weeks. It is concluded that indigenous Venda chicken egg weight affects hatchability, hatch-weight, mortality and subsequent productivity of the chickens. It is concluded that production variables were optimized at different egg weights. This means that the selection of eggs for incubation will depend on the parameter in question.

Original languageEnglish
JournalSouth African Journal of Animal Sciences
Volume43
Issue number5
DOIs
Publication statusPublished - 2013

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egg weight
South Africa
chicks
chickens
chicken eggs
egg hatchability
egg incubation
body weight

All Science Journal Classification (ASJC) codes

  • Animal Science and Zoology

Cite this

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abstract = "A study was conducted to determine the effect of egg weight on hatchability, chick hatch-weight, mortality and subsequent productivity of indigenous Venda chickens. Three hundred and sixty indigenous Venda chicken eggs were collected for a period of a week and selection was done based on the weight of the eggs. A complete randomized design was used, with four treatment weights, each with 90 eggs. The four treatment weights were as follows: below 49 g, between 50 and 59 g, between 60 and 69 g, and above 70 g. Egg weight was positively and strongly correlated with egg hatchability (r2 = 0.727) and chick hatch-weight (r2 = 0.953). Heavier-sized eggs hatched chicks had higher mortality rates. Growth rate and live weight of the chickens were optimized at different egg weights of 56 (r2 = 0.657) and 60 (r2 = 0.870) g, respectively, for chickens aged 1 to 7 weeks, and egg weights of 61 g (r2 = 0.514) and 60 g (r2 = 0.948), respectively, for chickens aged 8 to 13 weeks. It is concluded that indigenous Venda chicken egg weight affects hatchability, hatch-weight, mortality and subsequent productivity of the chickens. It is concluded that production variables were optimized at different egg weights. This means that the selection of eggs for incubation will depend on the parameter in question.",
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Effects of egg weight on hatchability, chick hatch-weight and subsequent productivity of indigenous venda chickens in polokwane, South Africa. / Ng'ambi, J. W.; Thamaga, M. W.; Norris, D.; Mabelebele, M.; Alabi, O. J.

In: South African Journal of Animal Sciences, Vol. 43, No. 5, 2013.

Research output: Contribution to journalArticle

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