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Erythrogram Indices of Vealers and the Interrelation of Their Values with the Growth Hormones' Level |
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| รหัสดีโอไอ | |
| Creator | Elizaveta Anatolyevna Bilan, Marina Arkadyevna Derkho |
| Title | Erythrogram Indices of Vealers and the Interrelation of Their Values with the Growth Hormones' Level |
| Contributor | - |
| Publisher | TuEngr Group |
| Publication Year | 2564 |
| Journal Title | International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies |
| Journal Vol. | 12 |
| Journal No. | 12 |
| Page no. | 12A12E: 1-11 |
| Keyword | Erythrogram parameters, Cow growth hormone, Hematological profile, Principal component 1, MCV, MCH, MCHC, Traits' interrelations, Heifers, IGF-1, Holsteinized black pied calves, Forage-fed cow. |
| URL Website | http://TuEngr.com/Vol12_12.html |
| Website title | ITJEMAST V12(12) 2021 @ TuEngr.com |
| ISSN | 2228-9860 |
| Abstract | The age-related changes in the parameters of the erythrogram and the somatotropic axis hormones in the blood of Holsteinized black pied calves during the preweaning period were studied; their interrelations were determined by the Principal Component Analysis. The objects of the study were heifers, the study material was blood. Erythrocytes, hemoglobin, hematocrit, erythrocyte indices, growth hormone (somatotropic hormone of the pituitary gland), insulin-like growth factor-1 were determined in the blood at 1, 3, and 6 months of age. It was found that the value of the erythrogram indices in the preweaning period of rearing Holsteinized black pied breed calves increases with age from 9.2 to 50.0%. By the age of 6 months, the growth hormone concentration decreases 1.80 times, and IGF-1 increases 23.35 times, determining the priority of the latter in the regulation of growth processes. Principal component analysis shows that IGF-1 directly regulates the number of erythrocytes and hemoglobin in the calves' blood. |
