Section 118.7 - Sampling methodology for Salmonella Enteritidis (SE)(a)Environmental sampling. An environmental test must be done for each poultry house in accordance with § 118.5 (a) and (b) . Within each poultry house, you must sample the environment using a sampling plan appropriate to the poultry house layout.(b)Egg sampling. When you conduct an egg test required under § 118.6 , you must collect and test the following number of eggs from the positive poultry house:(1) To meet the egg testing requirements of § 118.6(c) , you must collect and deliver for testing a minimum of 1,000 intact eggs representative of a day's production. The 1,000-egg sample must be tested according to § 118.8 . You must collect and test four 1,000-egg samples at 2-week intervals for a total of 4,000 eggs.(2) To meet the monthly egg testing requirement of § 118.6(e) , you must collect and deliver for testing a minimum of 1,000 intact eggs representative of a day's production per month for the life of the flock. Eggs must be tested according to § 118.8 .