Ghirardi, J J Retention of different sizes of electronic identification boluses in the forestomachs of sheep. [electronic resource] - Journal of animal science Oct 2006 - 2865-72 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1525-3163 Standard No.: 10.2527/jas.2006-157 doi Subjects--Topical Terms: Animal Identification Systems--instrumentationAnimalsElectronics--instrumentationFemaleLogistic ModelsMaleOmasum--physiologyReticulum--physiologyRumen--physiologySheep--physiology