This study was conducted on two dairy farms during April 2013 to April 2014. A total of 30 healthy adult female bovines were taken up for the study. Fifteen animals were selected from each farm. Reticular magnets were administered orally to each of them using a balling gun and its settlement within the reticulo-rumen was ascertained by ferroscopy. The magnet settled in the reticulum immediately after administration in all but one animal. Ferroscopy revealed that magnet was detectable on left side in 17 animals, right side in 8 animals and on mid-ventrum in 5 animals. Most of the animals had magnet within a distance of 4 inches caudal to xiphoid. All the 30 animals retained the magnet during the study period of one year indicating that a readministration is not required up to a period of 1 year. No complications were observed in any animal after feeding of magnets and no clinical signs of foreign body syndrome were reported. The ferroscopic deflection ranged from 10 to 30 µA, with a mean of 16.47±1.01 µA without showing any significant variation throughout the study period.
Tufail Hussain, Ashwani Kumar, Baljinder Kumar Bansal, Sikh Tejinder Singh. Retention time of magnets in reticulo-rumen of cattle and buffaloes for prophylaxis of foreign body syndrome. J Entomol Zool Stud 2017;5(6):1464-1466.