Woodhead, Brian2017-01-202017-01-20https://hdl.handle.net/2139/43702Poultry -- Diseases -- Research -- Trinidad and TobagoPullorum disease -- Diagnosis -- Trinidad and TobagoPoultry -- Fertility -- Trinidad and Tobago -- Field experimentsPoultry -- Hatcheries -- Research -- Trinidad and TobagoThe progeny testing of the I.C.T.A. strain of pullorum tested, single combed rhode island red poultryTheses