RESUMO
Propetamphos is a new organophosphorous compound with broad spectrum acaricidal and insecticidal activity. Dip wash concentrations of 100 to 200 ppm protect sheep against field challenge for approximately 10 weeks for blowflies, 16 weeks for lice and keds and six weeks for ticks. During laboratory and field trial studies a wash concentration of 125 ppm propetamphos eradicated sheep scab and protected from reinfestation for over four weeks.
Assuntos
Ectoparasitoses/veterinária , Inseticidas/uso terapêutico , Compostos Organotiofosforados/uso terapêutico , Doenças dos Ovinos/prevenção & controle , Animais , Dípteros , Ectoparasitoses/prevenção & controle , Feminino , Infestações por Piolhos/prevenção & controle , Infestações por Piolhos/veterinária , Infestações por Ácaros/prevenção & controle , Infestações por Ácaros/veterinária , Ovinos , Infestações por Carrapato/prevenção & controle , Infestações por Carrapato/veterináriaRESUMO
A total of 69 ewes were fed either on a low nutritional plane for six weeks prior to mating and for four weeks postmating (LL), or on a low nutritional plane for three weeks and then on a high nutritional plane (LH), or on a high nutritional plane throughout (HH). Ewes at mating were 49.3, 63.7 and 70.6 kg liveweight respectively and their body condition scores were 1.6, 2.9 and 3.8. There was a significant difference in ovulation rate: LL = 1.53, LH = 2.13 and HH = 2.27, and in lambing per cent: 77, 150 and 186 respectively. Under the system of indoor feeding practised at mating, there was no economic advantage to be gained from flushing, but normally ewes would be flushed outside.
Assuntos
Fenômenos Fisiológicos da Nutrição Animal , Reprodução , Ovinos/fisiologia , Animais , Animais Recém-Nascidos , Peso ao Nascer , Corpo Lúteo/anatomia & histologia , Feminino , Fertilização , Morte Fetal/veterinária , Ovulação , Gravidez , Doenças dos OvinosRESUMO
In sheep the administration of single intramuscular injections of dexamethasone into the fetus was shown to be an effective method of initiating parturition. In a controlled trial in women who had gone beyond the 41st week of pregnancy 20 mg betamethasone in saline (six patients) or saline alone (five patients) was injected into the amniotic fluid. In the betamethasone-treated group delivery occurred 78.9 +/- 10.2 (S.D.) hours after injection while in the control group it occurred 323 +/- 62 (S.D.) hours after injection (P < 0.01). In one woman with an anencephalic pregnancy intra-amniotic injection failed to initiate parturition but delivery occurred 88.5 hours after intramuscular injection of betamethasone into the fetus.