ABSTRACT
The high toxicity of Zine-Metallibur was tested in gilts aged eight months and weighing between 78 and 96 kg. Zinc-Metallibur, either 1 g/kg live weight or a quantity 1,000 times that used for synchronisation, was admixed to feed rations and introduced directly into the stomach through and intra-oesophageal tube. Fodder with the entire dose admixed is rejected by the pig. Direct intragastric administration of the same amount, however, is possible and does not cause death.
Subject(s)
Methallibure/adverse effects , Thiourea/analogs & derivatives , Zinc/adverse effects , Animals , Estrus Synchronization/drug effects , Female , Intubation, Gastrointestinal/veterinary , Methallibure/administration & dosage , Pregnancy , Swine , Zinc/administration & dosageABSTRACT
Metallibure (TURISYNCHRON, VEB Jenapharm, GDR) at 40 mg per kg of food, given for 14 days, completely suppressed laying, and in a shorter time than that produced by conventional methods. Turkeys tolerated TURISYNCHRON well, and no adverse effects were seen. Egg production after TURISYNCHRON treatment was higher than that of untreated controls. This preliminary trial will be followed by more extensive trials.
