06-13-2015, 03:47 PM
You fail to list out an important info from the source. Here is it:
"Commercial broiler or layer chicks originating from parent birds vaccinated with an inactivated gumboro vaccine generally have maternal antibody titers in the range of 1,000 to 8,000 ELISA units. Based on this assumption we can predict that for:"
Unfortunately, some hatcheries in Nigeria will fail to meet this standard from time to time and if you follow this vaccination plan, a lot of your birds will die. I escaped such experience by doing day old chick (DOC) screening. The result showed that my chicks have low resistance to gumboro and newcastle disease. So I have to start gumboro vaccine on day 5 (I actually gave them on day 6), followed the next day by immucox, day 8: lasota. Day 15: Gumboro again, day 17 lasota, mareks day 25, gumboro @day 29, lasota day 31 etc. So it is better to go for DOC screening for a better vaccination plan and antibiotic sensitivity test.
"Commercial broiler or layer chicks originating from parent birds vaccinated with an inactivated gumboro vaccine generally have maternal antibody titers in the range of 1,000 to 8,000 ELISA units. Based on this assumption we can predict that for:"
Unfortunately, some hatcheries in Nigeria will fail to meet this standard from time to time and if you follow this vaccination plan, a lot of your birds will die. I escaped such experience by doing day old chick (DOC) screening. The result showed that my chicks have low resistance to gumboro and newcastle disease. So I have to start gumboro vaccine on day 5 (I actually gave them on day 6), followed the next day by immucox, day 8: lasota. Day 15: Gumboro again, day 17 lasota, mareks day 25, gumboro @day 29, lasota day 31 etc. So it is better to go for DOC screening for a better vaccination plan and antibiotic sensitivity test.