24 research outputs found
ProgestĂĄgeno intravaginal para controle do estro e do parto em fĂȘmeas suĂnas
O objetivo deste trabalho foi avaliar a utilização de dispositivos intravaginais (DIV) para o controle da reprodução em suĂnos. Porcas aos 112 dias de gestação receberam injeção de PGF2α (controle, n = 15) ou PGF2α com inserção de DIV contendo acetato de medroxiprogesterona (grupo DIV, n = 14) por 48 horas. As fĂȘmeas iniciaram o parto 27,7±1,6 e 82,3±3,8 horas apĂłs aplicação de PGF2α nos grupos controle e tratado, respectivamente. Quanto ao controle do estro, dez porcas receberam DIV por 12 dias, iniciando imediatamente apĂłs o desmame, e o estro foi confirmado aos 17,25±0,17 dias apĂłs o desmame, em comparação a 4±0,25 dias no grupo controle. Dispositivos intravaginais com progestĂĄgeno podem ser utilizados no controle da reprodução em suĂnos
Theft in Price-Volatile Markets: On the Relationship between Copper Price and Copper Theft
Recently, against a backdrop of general reductions in acquisitive crime, increases have been observed in the frequency of metal theft offences. This is generally attributed to increases in metal prices in response to global demand exceeding supply. The main objective of this article was to examine the relationship between the price of copper and levels of copper theft, focusing specifically on copper cable theft from the British railway network. Results indicated a significant positive correlation between lagged increases in copper price and copper cable theft. No support was found for rival hypotheses concerning U.K. unemployment levels and the general popularity of theft as crime type. An ancillary aim was to explore offender modus operandi over time, which is discussed in terms of its implications for preventing copper cable theft. The authors finish with a discussion of theft of other commodities in price-volatile markets