Analysis of Egg Shape of Chickens

Shultz, Fred T.

doi:10.2307/3001710

Cited by 25 publications

(16 citation statements)

References 8 publications

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“…Lengths and breadths of eggs were measured using Vernier calipers (least count 0.01 mm). Shape index was calculated as per the formula described by Schultz (1953).…”

Section: Egg Quality Parametersmentioning

confidence: 99%

Comparative studies on egg, meat, and semen qualities of native and improved chicken varieties developed for backyard poultry production

Haunshi

Doley

Kadirvel

2010

Trop Anim Health Prod

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The objective of the present study was to evaluate/compare the sensory attributes of eggs and meat, egg qualities, proximate composition of eggs, and semen qualities of slow growing native (Miri and Mizo-local) and fast growing improved chicken varieties (Gramapriya and Vanaraja) under hill ecosystem of northeastern India. Significantly higher egg weight, egg volume, and albumen volume were observed in Gramapriya followed by Vanaraja, Mizo-local, and Miri chickens. However, yolk volume was significantly higher in Vanaraja and Gramapriya varieties as compared to native chickens. Yolk to albumen ratio was significantly lower in Gramapriya as compared to Vanaraja and Miri chicken. Consumer liking of eggs for aroma, flavor, and overall acceptability of Miri, Mizo-local, and Vanaraja were significantly higher than that of Gramapriya. Genetic groups did not differ significantly in appearance and proximate composition of eggs. No significant differences were observed between various genetic groups for sensory attributes of meat samples. Semen volume was significantly (p < or = 0.01) lower while sperm concentration was significantly (p < or = 0.01) higher in native chicken as compared to the improved chicken varieties. However, pH, mass activity, sperm motility, and livability did not differ significantly among genetic groups although Mizo-local had significantly higher abnormal sperm count. The study concluded that the genetic groups with different growth rate differed significantly for various egg quality parameters and semen characteristics but not for sensory attributes of meat and proximate composition of eggs.

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“…Lengths and breadths of eggs were measured using Vernier calipers (least count 0.01 mm). Shape index was calculated as per the formula described by Schultz (1953).…”

Section: Egg Quality Parametersmentioning

confidence: 99%

Comparative studies on egg, meat, and semen qualities of native and improved chicken varieties developed for backyard poultry production

Haunshi

Doley

Kadirvel

2010

Trop Anim Health Prod

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“…The remaining eggs were utilized to determine various physical qualities like egg weight, shape index (Shultz, 1953), air cell height, albumen index (Heiman and Laver, 1936), Yolk index (Funk, 1948 …”

Section: Methodsmentioning

confidence: 99%

Fatty Acid Profiles and Physical Qualities of Different Varieties of Chicken and Duck Eggs

Sarma¹,

Nahardeka²,

Islam³

et al. 2017

Int. J. Livest. Res.

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“…Findings concerning the correlation between shape and egg number are less definite. Shultz (19536) did not find any correlation between these traits. Similarly, Hicks' (1958) phenotypic correlations were almost nil.…”

Section: Egg Shapementioning

confidence: 48%

“…Benjamin (1920), Marble (1943) and Shultz (19536) found no correlation between shape and size. However, Hicks (1958) who calculated genetic and environmental correlations for these traits, found an average value of 0-40 for the former and -0-27 for the latter.…”

Section: Egg Shapementioning

confidence: 85%

The genetic basis of egg quality

Baker

1960

British Poultry Science

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Analysis of Egg Shape of Chickens

Cited by 25 publications

References 8 publications

Comparative studies on egg, meat, and semen qualities of native and improved chicken varieties developed for backyard poultry production

Comparative studies on egg, meat, and semen qualities of native and improved chicken varieties developed for backyard poultry production

Fatty Acid Profiles and Physical Qualities of Different Varieties of Chicken and Duck Eggs

The genetic basis of egg quality

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