In the USA the vaccination against the PCV2 has been carried out since
See a clue in the article Impact of 6 years of PCV2 vaccination on viral presence and immuninity
Questions
19-Oct-2016 The piglet reaches its digestive and immunological maturity between the 37% correct
13-Oct-2016 Can the gut microbiota be controlled through genetic selection? 46% correct
05-Oct-2016 Removing the divisions in the nursery room allows to take advantage of the corridor space, increasing the total surface by: 38% correct
28-Sep-2016 The increase in prolificacy has entailed a decrease in the space available for weaned piglets by: 39% correct
Random questions
03-Aug-2022 Which of the following statements regarding slurry composting is FALSE? 47% correct
18-Mar-2015 The average slaughter weight in US in 2014 has been of some 34% correct
06-Feb-2019 The faecal microbiota transplantation in pigs that later became infected with PRRS and PCV-2... 37% correct
18-May-2022 From which country does Spain import the most piglets? 49% correct
Easy questions
14-Apr-2021 When does ovulation usually occur in sows? 77% correct
01-Sep-2021 How has pork production in China evolved in the first half of 2021 compared to 2020? 79% correct
23-Dec-2020 What relationship exists between the sows' acceptance of contact by the farmer and the farm performance? 93% correct
07-Oct-2020 The type of fish used to produce fish meal and how it is stored have a direct affect on which of the following? 85% correct
Difficult questions
27-Aug-2013 After the launching of 333's website in Chinese (www.pig333.cn), in how many different languages is 333 available? 27% correct
21-Aug-2019 How does incorporating citrus pulp into the diet affect nitrous oxide emissions (greenhouse gas) by using manure as fertilizer? 27% correct
10-Mar-2021 How much feed did U.S. hogs consume in 2019? 17% correct
30-May-2019 A possible use of probiotics in sows is 27% correct