EFFECT OF STRAIN, SEASON AND BREEDER'S AGE ON SOME PHYSIOLOGICAL PARAMETERS FOR LAYER DEAD EMBRYO
The effect of breederʼs strain (Hy-line Brown and Hy-line White W36) flock aged (28, 36, 46, 55, 66 weeks of age) and breeding season on some physiological measurements in egg, demand organs, dead supply organs and lymphoid organs were examined. At each age, 10 unhatched eggs from each genotype were...
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| Format: | Article |
| Language: | Arabic |
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The Union of Arab Universities
2017-09-01
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| Series: | Arab Universities Journal of Agricultural Sciences |
| Subjects: | |
| Online Access: | https://ajs.journals.ekb.eg/article_13579_c3c2876d868f395e85ba6d29a7fa19cd.pdf |
| _version_ | 1797269715923501056 |
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| author | A. Abd El-Salam Eman El-Daly Y. Y.A. Hamouda S. El-Safty A El-Attar |
| author_facet | A. Abd El-Salam Eman El-Daly Y. Y.A. Hamouda S. El-Safty A El-Attar |
| author_sort | A. Abd El-Salam |
| collection | DOAJ |
| description | The effect of breederʼs strain (Hy-line Brown and Hy-line White W36) flock aged (28, 36, 46, 55, 66 weeks of age) and breeding season on some physiological measurements in egg, demand organs, dead supply organs and lymphoid organs were examined. At each age, 10 unhatched eggs from each genotype were examined on embryo weight percentage, Chorioallotoic weight %, albumen pH %, yolk pH %, residual yolk %, pectoral muscles weight %, hatch muscles weight %, heart, liver, lunges, spleen, burse weight percentage. There was a significant difference between layer breeder genotypes for lunges weight percentage the brown was higher (0.84) than the white (0.62). The breeding season had a significant effect on heart, liver, lunges weight percentages in winter higher than summer but yolk pH and residual yolk the summer higher than the winter. Breeder's age significant effect on embryo weight percentage, Chorioallotoic weight %, albumen pH %, yolk pH%, residual yolk %, hatch muscles weight % heart, liver, lunges and burse weight percentage. It could be observed that the genetic differences among layer breeder strain and age of breeders can affect the hatchery performance. Additionally, handling of hatching eggs and incubation management can play a major role to overcome numerous hatching problems. In turn, increasing the production of table eggs and achieves the balance between supply and demand of that strategic commodity in Egyptian market. |
| first_indexed | 2024-04-25T01:52:47Z |
| format | Article |
| id | doaj.art-1b2c5503effc4ecb83d9535cabb817dc |
| institution | Directory Open Access Journal |
| issn | 1110-2675 2636-3585 |
| language | Arabic |
| last_indexed | 2024-04-25T01:52:47Z |
| publishDate | 2017-09-01 |
| publisher | The Union of Arab Universities |
| record_format | Article |
| series | Arab Universities Journal of Agricultural Sciences |
| spelling | doaj.art-1b2c5503effc4ecb83d9535cabb817dc2024-03-07T17:42:36ZaraThe Union of Arab UniversitiesArab Universities Journal of Agricultural Sciences1110-26752636-35852017-09-0125225926910.21608/ajs.2017.1357913579EFFECT OF STRAIN, SEASON AND BREEDER'S AGE ON SOME PHYSIOLOGICAL PARAMETERS FOR LAYER DEAD EMBRYOA. Abd El-Salam0Eman El-Daly1Y. Y.A. Hamouda2S. El-Safty3A El-Attar4Animal production Dept., National Research Center, Dokki, EgyptAnimal production Dept., National Research Center, Dokki, EgyptAnimal production Dept., National Research Center, Dokki, EgyptPoultry Production Dept. Faculty of Agriculture, Ain Shams University, Cairo, Egypt.Poultry Production Dept. Faculty of Agriculture, Ain Shams University, Cairo, EgyptThe effect of breederʼs strain (Hy-line Brown and Hy-line White W36) flock aged (28, 36, 46, 55, 66 weeks of age) and breeding season on some physiological measurements in egg, demand organs, dead supply organs and lymphoid organs were examined. At each age, 10 unhatched eggs from each genotype were examined on embryo weight percentage, Chorioallotoic weight %, albumen pH %, yolk pH %, residual yolk %, pectoral muscles weight %, hatch muscles weight %, heart, liver, lunges, spleen, burse weight percentage. There was a significant difference between layer breeder genotypes for lunges weight percentage the brown was higher (0.84) than the white (0.62). The breeding season had a significant effect on heart, liver, lunges weight percentages in winter higher than summer but yolk pH and residual yolk the summer higher than the winter. Breeder's age significant effect on embryo weight percentage, Chorioallotoic weight %, albumen pH %, yolk pH%, residual yolk %, hatch muscles weight % heart, liver, lunges and burse weight percentage. It could be observed that the genetic differences among layer breeder strain and age of breeders can affect the hatchery performance. Additionally, handling of hatching eggs and incubation management can play a major role to overcome numerous hatching problems. In turn, increasing the production of table eggs and achieves the balance between supply and demand of that strategic commodity in Egyptian market.https://ajs.journals.ekb.eg/article_13579_c3c2876d868f395e85ba6d29a7fa19cd.pdfstrainseasonagedemand organssupply organs and lymphoid organs |
| spellingShingle | A. Abd El-Salam Eman El-Daly Y. Y.A. Hamouda S. El-Safty A El-Attar EFFECT OF STRAIN, SEASON AND BREEDER'S AGE ON SOME PHYSIOLOGICAL PARAMETERS FOR LAYER DEAD EMBRYO Arab Universities Journal of Agricultural Sciences strain season age demand organs supply organs and lymphoid organs |
| title | EFFECT OF STRAIN, SEASON AND BREEDER'S AGE ON SOME PHYSIOLOGICAL PARAMETERS FOR LAYER DEAD EMBRYO |
| title_full | EFFECT OF STRAIN, SEASON AND BREEDER'S AGE ON SOME PHYSIOLOGICAL PARAMETERS FOR LAYER DEAD EMBRYO |
| title_fullStr | EFFECT OF STRAIN, SEASON AND BREEDER'S AGE ON SOME PHYSIOLOGICAL PARAMETERS FOR LAYER DEAD EMBRYO |
| title_full_unstemmed | EFFECT OF STRAIN, SEASON AND BREEDER'S AGE ON SOME PHYSIOLOGICAL PARAMETERS FOR LAYER DEAD EMBRYO |
| title_short | EFFECT OF STRAIN, SEASON AND BREEDER'S AGE ON SOME PHYSIOLOGICAL PARAMETERS FOR LAYER DEAD EMBRYO |
| title_sort | effect of strain season and breeder s age on some physiological parameters for layer dead embryo |
| topic | strain season age demand organs supply organs and lymphoid organs |
| url | https://ajs.journals.ekb.eg/article_13579_c3c2876d868f395e85ba6d29a7fa19cd.pdf |
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