Control of fertility outcome in artificially inseminated gilts and old sows. 2: Addition of oxytocin to boar semen. Its effect on length of insemination, pregnancy rate and litter size]

Toleration-oriented insemination was applied to 1,373 oestrous sows that had undergone bio-engineering treatment, with two insemination portions having been used for each oestrous. Five International Units of oxytocin were added immediately before insemination proper to the semen applied to 315 gilts and 377 old sows. The control group included 296 gilts and 385 old sows inseminated in parallel. Semen intake, on average, was complete between four and eight minutes with the majority of gilts and between four and seven minutes with most of the old sows, but no evidence was obtained as to any action of the oxytoxin upon intake intensity. The treated gilts were superior to the controls by 6.3 per cent in pregnancy rate and by 56 born piglets to each 100 first inseminations. Superiority, consequently, was significant. In both gilts and old sows added oxytocin prolonged insemination by more than five minutes and gave clearly better fertility results.     

Evaluation of the agar-gel immunodiffusion test in the diagnosis of canine blastomycosis

The agar-gel immunodiffusion test was used to evaluated 35 dogs with histopathologically confirmed blastomycosis and 98 dogs without blastomycosis. The test had a sensitivity of 91% and a specificity of 96%. Thirteen of the dogs treated for blastomycosis were tested at 6 to 33 months after treatment with amphotericin B. Ten of 13 dogs became seronegative and 3, though clinically normal, remained seropositive at 19, 20, and 20 months, respectively, after amphotericin treatment.     

Salmonella survey in Kenya abattoirs

Summary Salmonellae were isolated from 17 out of 550 pigs and 3 out of 299 calves killed in the Uplands (Kenya) slaughterhouse but none from 455 steers slaughtered at Nakuru. Follow up visits to the farms of origin revealed no salmonella problems.

---

Resumen Se aisló salmonela de 17 de 550 cerdos y de 3 de 299 becerros sacrificados en el matadero de Uplands (Kenia). Pero no se encontró salmonela en 455 terneros sacrificados en otro matadero de Nakuru. Las visitas de inspección a los ranchos de donde provenian los animales no mostraron problema de salmonela.

---

Résumé Des Salmonelles ont été isolées chez 17 porcs sur un nombre total de 550 et chez 3 veaux sur un nombre total de 299, abattus à l'abattoir des Uplands (Kenya); aucune souche n'a été isolée à partir de 455 bouvillons abattus à Nakuru. A la suite de ces isolements, des visites effectuées dans les fermes d'origine ont montré qu'il n'existait aucun problème de Salmonellose.