Tierärztliche Hochschule Hannover Isoflurane-anaesthesia used for piglet-castration: evaluation of labour time and bacteriological assessment of the shared and stationary inhaler devices
نویسندگان
چکیده
Castration of piglets with the use of isoflurane-anaesthesia in combination with an analgesic has been proven to be an animal-friendly approach. However, castration is performed with an equipped anaesthetic device which is not profitable for small farms. Thus, this study aimed at investigating whether sharing the anaesthetic device among farms results in an elevated risk of bacteriological contamination and further spreading in spite of a thorough disinfection. The study included two groups of organic farms. Piglets (N=1579) were anaesthetised with isoflurane supplied from an equipped device and castrated. Stationary anaesthetic devices were used in the first group of farms, whereas farms in the second group shared one device. Each farm was visited four times and the colony forming units (CFU) of total mesophilic bacteria, Staphylococcus spp., Methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli were determined. Sampling took place before castration and after disinfection, and included snout masks, retaining fixtures, pedals and wheels of the device (N=376). The results indicated presence of Staphylococcus species in 56.5% and 40.3% of samples obtained from farms using stationary and shared devices, respectively. MRSA was detected in 2.4% of the samples and only one pathogenic Shiga toxinproducing E. coli (Stx2e, F18) could be detected. Bacterial counts were lower on the shared device than on the stationary devices (P=0.038), particularly on restraining fixtures (P<0.05). In both groups wheels were the most and pedals the least contaminated materials (P<0.05). It is concluded that sharing an anaesthetic device on several farms does not increase bacteriological contamination after a thorough disinfection and thus does not impose an additional hygiene risk to farms with similar hygienic conditions. Chapter 2 15 Bacteriological assessment 1 5
منابع مشابه
Tierärztliche Hochschule Hannover Investigation of antioxidative capacity in bovine seminal plasma– Effects of Omega-3 fatty acids INAUGURAL – DISSERTATION
متن کامل
Experience with use of local anaesthesia in piglet castration
Background The Norwegian situation In 2002, the Norwegian parliament decided to ban castration in Norway from January 1 2009. From August 2002 and until the implementation of the ban, castration is only allowed by veterinarians, and anaesthesia is mandatory. If the piglets are older than 7 days, additional long term pain relief should be used. No further specification is given about type and ad...
متن کاملEvaluation of several drug combinations for intraperitoneal anaesthesia in adult male rats
The objective of this study was to evaluate several drug combinations for intraperitoneal anaesthesia in laboratory rats. Following dose determination of anaesthetics in a pilot study, 45 healthy adult male rats were randomly assigned in 9 treatment groups and received propofol (alone or in combination with xylazine, midazolam, or ketamine) or ketamine (in combination with xylazine, midazolam, ...
متن کاملDevelopment of a Piglet Grimace Scale to Evaluate Piglet Pain Using Facial Expressions Following Castration and Tail Docking: A Pilot Study
Facial expressions are increasingly being used to assess pain in non-human species, including rodents, horses, and lambs. The development of these species-specific grimace scales has allowed for more rapid pain detection, which can lead to better animal welfare if intervention promptly occurs. For grimace scales to ever be used as a stand-alone measure of pain, it is important they correlate wi...
متن کاملComparative evaluation of clinical efficiency of intramuscular diazepam-ketamine, medetomidine-ketamine, and xylazine-ketamine anaesthesia in Ring-necked pheasants (Phasianus colchicus)
Background: Several injectable anaesthetics and sedatives are used in various avian species for general anaesthesia. Birds are very sensitive animals and any mismanagement in a crisis can lead to immediate shock and death. Therefore, careful selection of the safest possible anaesthetic agent and dose is very important. Aims: The aim of this study was to examine...
متن کامل