STUDY ON SOME HEMATOLOGICAL AND BLOOD BIOCHEMICAL PARAMETERS OF NEWLY INTRODUCED LAYER BREEDS DEPENDING ON THE LAYING PERIOD
PURPOSE: To compare some major hematological and biochemical blood parameters of 3 newly introduced poultry breeds – Australorp, Marans and Araucana, during different stages of their egglaying period. METHODS: Five blood parameters were investigated: hematocrit, hemoglobin, glucose, total protein a...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Trakia University
2020-12-01
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| Series: | Trakia Journal of Sciences |
| Subjects: | |
| Online Access: | http://tru.uni-sz.bg/tsj/TJS%20-%20Suppl.1,%20Vol.18,%202020/3_A.Arnaudov.pdf |
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| Summary: | PURPOSE: To compare some major hematological and biochemical blood parameters of 3 newly introduced poultry breeds – Australorp, Marans and Araucana, during different stages of their egglaying period.
METHODS: Five blood parameters were investigated: hematocrit, hemoglobin, glucose, total protein and total cholesterol. A hundred blood samples were tested, collected at three laying stages – beginning, middle and end.
RESULTS: Statistically significant differences in the hemoglobin levels by sexes were established: in Marans breed (males – between 8.38 and 13.45; females – between 7.30 and 9.02 g*dl-1 ) and Araucana (males – between 9.17 and 13.65; females – between 9.08 and 9.40 g*dl-1 ). The hematocrit levels in the males (from 23.16% in Marans to 40.88% in Australorp) were significantly higher than the levels in the females (from 23.72% in Marans to 30.48% in Australorp). The blood glucose test of the cocks (from 32.07 in Marans to 40.88 mmol*l-1 in Australorp) showed higher levels compared to the female (from 23.72 in Marans to 30.48 mmol*l-1 in Australorp). The total protein content in the layers’ blood (between 5.97 in Araucana and 8.73 g*dl-1 in Marans) was
higher compared to cocks. The total cholesterol levels were, as follows: males – from 2.05 in Araucana to 3.49 mmol*l-1 in Australorp; females – from 1.92 in Australorp to 6.57 3.49 mmol*l-1 in Araucana.
CONCLUSIONS: The variations in the investigated parameters in the blood are a result of the simultaneous effect of several factors - breed genetic differences, differences in egg-laying effort and degree of adaptation. |
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| ISSN: | 1313-3551 |