Author = Hassan El Sayed Helal
| Number of Articles: 1 | ||
| 1 | Current situation assessment of biosecurity measures of some poultry sectors and hatcheries in Egypt | |
| Volume 23, Issue 2, December 2016, Page 143-154 | ||
| Asmaa N. Mohammed; Hassan El Sayed Helal | ||
| Number of Articles: 1 | ||
| 1 | Current situation assessment of biosecurity measures of some poultry sectors and hatcheries in Egypt | |
| Volume 23, Issue 2, December 2016, Page 143-154 | ||
| Asmaa N. Mohammed; Hassan El Sayed Helal | ||
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