The publishers apologize for errors in the affiliations for the corresponding author given on page 1 of the article. The correct information is as follows:
Mohamed Fathi2,5, Mohamed Ashry1,2,3,5, Ali Salama2 and Magdy R. Badr4
1All correspondence to: M. Ashry: Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA. E-mail: email@example.com
2Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
3Laboratory of Mammalian Reproductive Biology, Department of Animal Science, Michigan State University, USA.
4Department of Artificial Insemination and Embryo Transfer, Animal Reproduction Research Institute, Agriculture Research Centre, Giza, Egypt.
5These authors contributed equally to this work.