PHENOTYPIC CORRELATIONS BETWEEN SOME EXTERNAL AND INTERNAL EGG QUALITY TRAITS IN GRAMAPRIYA LAYERS
In a study, 360 nos of eggs were randomly collected from 80 birds from a flock of Gramapriya layers for a period of twelve weeks and assessed individually for the evaluation of the egg quality traits and to study the phenotypic correlations between some external and internal egg quality traits....
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| Format: | Article |
| Language: | English |
| Published: |
West Bengal Veterinary Alumni Association
2015-06-01
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| Series: | Exploratory Animal and Medical Research |
| Subjects: | |
| Online Access: | http://www.animalmedicalresearch.org/Vol.5_Issue-1_June_2015/Bikash%20Ch%20Debnath.pdf |
| Summary: | In a study, 360 nos of eggs were randomly collected from 80 birds from a flock of
Gramapriya layers for a period of twelve weeks and assessed individually for the evaluation of the
egg quality traits and to study the phenotypic correlations between some external and internal egg
quality traits. The average values of egg weight, shape index, shell ratio, and average shell thickness
were found to be 56.34g, 83.92%, 10.13% and 0.39 mm, respectively. The values related to albumen
index , albumen height , albumen weight , albumen ratio , yolk diameter , yolk height , yolk index ,
yolk ratio and average values related to Haugh Unit (HU) were 0.33 %, 8.28 mm, 34.16g, 61.81%,
26.23 mm, 18.13 mm, 15.24g, 64.01% , 8.05% and 88.24% respectively. All the internal quality traits
of the eggs, except the yolk ratio, were found to have significant positive correlations with the weight
of the egg. The study indicates that as the albumen height improved the Haugh Unit also improved
and as the egg weight increased heights of both the albumen and yolk also increased. Results achieved
in the study in relation with external and internal quality traits of Gramapriya layer eggs may assist
the breeders for further improvement of the breed. |
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| ISSN: | 2277-470X 2319-247X |