Haematological Characterization of Reproductive Status at Laying Hens by Age
Physiological activity of the pineal gland with specific
responses in the reproductive territory may be interpreted by
monitoring the process parameters used in poultry practice in
different age batches of laying hens. As biological material were
used 105 laying hens, clinically healthy, belonging to ALBO SL-
2000 hybrid, raised on ground, from which blood samples were taken
at the age of 12 and 28 weeks. The haematological examinations
were concerned to obtain the total number of erythrocytes and
leukocytes and the main erythrocyte constant (RBC, PCV, MCV,
MCH, MCHC and WBC). The results allow the interpretation of the
reproductive status through the dynamics of the presented values.
[1] D. N. Andr├ís, J. C. Valér, Cry1 expression in the chicken pineal gland:
Effects of changes in the light/dark conditions, General and Comparative
Endocrinology, Vol 152, Issue 2-3, 2007, pp. 144-147.
[2] V. Csernus, N. Faluhelyi, A. D. Nagy, Features of the circadian clock in
the avian pineal gland, Ann. N.Y. Acad. Sci. 1040, 2005, pp. 281-287.
[3] A. Natesan, L. Geetha, M. Zatz, Rhythm and soul in the avian pineal,
Cell. Tissue Res. 309, 2002, pp. 35-45.
[4] J. B. Michael, M. C. Vincent, Melanopsin expression in the chick retina
and pineal gland, Molecular Brain Research, vol. 134, Issue 2, 2005, pp.
345-348.
[5] Vinod Kumar, Bhanu Pratap Singh, Sangeeta Rani, The bird clock: a
complex, multi- oscillatory and highly diversified system, Biological
Rhythm Research, Volume 35, Numbers 1-2, 2004, pp. 121-144.
[1] D. N. Andr├ís, J. C. Valér, Cry1 expression in the chicken pineal gland:
Effects of changes in the light/dark conditions, General and Comparative
Endocrinology, Vol 152, Issue 2-3, 2007, pp. 144-147.
[2] V. Csernus, N. Faluhelyi, A. D. Nagy, Features of the circadian clock in
the avian pineal gland, Ann. N.Y. Acad. Sci. 1040, 2005, pp. 281-287.
[3] A. Natesan, L. Geetha, M. Zatz, Rhythm and soul in the avian pineal,
Cell. Tissue Res. 309, 2002, pp. 35-45.
[4] J. B. Michael, M. C. Vincent, Melanopsin expression in the chick retina
and pineal gland, Molecular Brain Research, vol. 134, Issue 2, 2005, pp.
345-348.
[5] Vinod Kumar, Bhanu Pratap Singh, Sangeeta Rani, The bird clock: a
complex, multi- oscillatory and highly diversified system, Biological
Rhythm Research, Volume 35, Numbers 1-2, 2004, pp. 121-144.
@article{"International Journal of Biological, Life and Agricultural Sciences:63143", author = "P. C. Boisteanu and M. G. Usturoi and Roxana Lazar and B. V. Avarvarei", title = "Haematological Characterization of Reproductive Status at Laying Hens by Age", abstract = "Physiological activity of the pineal gland with specific
responses in the reproductive territory may be interpreted by
monitoring the process parameters used in poultry practice in
different age batches of laying hens. As biological material were
used 105 laying hens, clinically healthy, belonging to ALBO SL-
2000 hybrid, raised on ground, from which blood samples were taken
at the age of 12 and 28 weeks. The haematological examinations
were concerned to obtain the total number of erythrocytes and
leukocytes and the main erythrocyte constant (RBC, PCV, MCV,
MCH, MCHC and WBC). The results allow the interpretation of the
reproductive status through the dynamics of the presented values.", keywords = "laying hens, haematology, reproductive status,", volume = "4", number = "5", pages = "370-3", }