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Prof. Tamer Mosaad Mohamed Mohamed Hassan :: Publications: |
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| Title: | Effects of dry period length and parity on milk
production and blood metabolites of Holstein Friesian
dairy cows |
| Authors: | Tamer M. M. Hassan and Ragab A. Abou-Saleh |
| Year: | 2021 |
| Keywords: | Non-lactation period, milk production, milk composition, blood analysis, dairy cows. |
| Journal: | Net Journal of Agricultural Science |
| Volume: | 9 |
| Issue: | 2 |
| Pages: | 14-21 |
| Publisher: | Net Journals |
| Local/International: | International |
| Paper Link: | Not Available |
| Full paper | Tamer Mosaad Mohamed Mohamed Hassan_4-.pdf |
| Supplementary materials | Not Available |
| Abstract: |
The aim of this study was to investigate effects of dry period length (120 days) and parity (second, third, fourth and fifth+) on milk production, composition and some blood metabolites using 620 Holstein-Friesian cows during the subsequent 305 days of lactation. Milk production was recorded during the following 305 days of lactation. Milk and blood samples were taken from 6 cows of each dry period group after first 100 days of lactation to analyze some milk composition and blood metabolites. Results showed that the differences between means of cow's milk production due to dry period length and parity number effects were highly significant (P120 days then, cows that dried at |
