by Kobkaew Bumroongthai(Chulalongkorn University, Bangkok (Thailand). Faculty of Veterinary Science), Paweeranut Banmairuroy(Chulalongkorn University, Bangkok (Thailand). Faculty of Veterinary Science), Sirinun Pisamai(Chulalongkorn University, Bangkok (Thailand). Faculty of Veterinary Science), Jinda Singlor(Chulalongkorn University, Bangkok (Thailand). Faculty of Veterinary Science. Department of Obstetrics, Gynaecology and Reproduction), Padet Tummaruk(Chulalongkorn University, Bangkok (Thailand). Faculty of Veterinary Science. Department of Obstetrics, Gynaecology and Reproduction) E-mail:Padet.t@chula.ac.th
Published in Warasan Sattawaphaetthayasat Mokho (01.01.2012)