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Technological and nutritional properties of ostrich, emu, and rhea meat quality
2016
Horbańczuk Olaf K. | Wierzbicka Agnieszka
In recent years a growing demand for ratite meat, including ostrich, emu, and rhea has been observed all over the world. However, consumers as well as the meat industry still have limited and scattered knowledge about this type of meat, especially in the case of emu and rhea. Thus, the aim of the present review is to provide information on technological and nutritional properties of ostrich, emu, and rhea meat, including carcass composition and yields, physicochemical characteristics, and nutritive value. Carcass yields and composition among ratites are comparable, with the exception of higher content of fat in emu. Ostrich, emu, and rhea meat is darker than beef and ratite meat acidification is closer to beef than to poultry. Ratite meat can be recognised as a dietetic product mainly because of its low level of fat, high content of polyunsaturated fatty acids (PUFA), favourable n6/n3 ratio, and high iron content in comparison with beef and chicken meat. Ratite meat is also rich in selenium, copper, vitamin B, and biologically active peptides such as creatine (emu) and anserine (ostrich), and has low content of sodium (ostrich). The abundance of bioactive compounds e.g. PUFA, makes ratite meat highly susceptible to oxidation and requires research concerning elaboration of innovative, intelligent packaging system for protection of nutritional and technological properties of this meat.
Afficher plus [+] Moins [-]Preliminary survey of the occurrence of goose haemorrhagic polyomavirus (GHPV) in wild birds in Poland
2016
Styś-Fijoł Natalia | Kozdruń Wojciech | Czekaj Hanna
Introduction: The aim of the study was to investigate the occurrence of goose haemorrhagic polyomavirus (GHPV) in wild birds inhabiting Poland.
Afficher plus [+] Moins [-]Red foxes (Vulpes vulpes) as reservoirs of respiratory capillariosis in Serbia
2016
Ilić Tamara | Becskei Zsolt | Tasić Aleksandar | Stepanović Predrag | Radisavljević Katarina | Đurić Boban | Dimitrijević Sanda
Introduction: The aim of the study was to determine the prevalence of respiratory capillariosis in red foxes (Vulpes vulpes) in some regions of Serbia.
Afficher plus [+] Moins [-]Changes in circulating adiponectin and tumour necrosis factor-α and their relationship with insulin resistance in periparturient dairy cows
2016
Mecitoglu Zafer | Senturk Sezgin | Akgul Gulsah | Udum Duygu | Uzabacı Ender | Kasap Sevim | Catik Serkan
Introduction: The aim of the study was to investigate changes in the serum levels of adiponectin and TNF-α, as well as insulin sensitivity, and to elucidate the possible relationship among the parameters and negative energy balance during the periparturient period of dairy cows.
Afficher plus [+] Moins [-]Characterisation of Staphylococcus aureus isolated from meat processing plants – a preliminary study
2016
Kizerwetter-Świda Magdalena | Chrobak-Chmiel Dorota | Rzewuska Magdalena | Pławińska-Czarnak Joanna | Binek Marian
Introduction: Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) belonging to the clonal complex 398 (CC398) emerged recently in livestock as a new type of MRSA, which may cause zoonotic infections. This study presents data on the characterisation of S. aureus isolated from the meat processing plants. Material and Methods: S. aureus was isolated from 90 samples collected in the raw meat warehouse, from devices and surfaces of meat processing plants, and from finished meat products. The isolates were subjected to molecular analysis in order to investigate the presence of enterotoxin genes, the mecA gene, and to verify whether they belong to the clonal complex 398. The genetic relatedness of the isolates was determined using pulsed-field electrophoresis. Likewise, antimicrobial susceptibility was tested. Results: From 21 S. aureus strains isolated, five belonged to the CC398, two of which were recognised as MRSA and three as methicillin-sensitive Staphylococcus aureus (MSSA). The most prevalent enterotoxin genes were seg and sei. Two MRSA CC398 isolates, three MSSA CC398, and one MSSA were classified as multidrug-resistant. Conclusion: The first isolation of MSSA CC398 from beef in Poland indicates contamination of beef by strains belonging to this clonal complex. The occurrence of multidrug-resistant enterotoxigenic S. aureus isolates in the finished meat products constitutes a potential risk for the consumers.
Afficher plus [+] Moins [-]Mixed infection zones may be important in the epidemiology of contagious agalactia
2016
Jafarizadeh Amirreza | Pourbakhsh Seyed Ali | Tadayon Keyvan | Jamshidian Mahmud | Ashtari Abbas
Introduction: The current study was designed to detect Mycoplasma agalactiae (Ma), Mycoplasma mycoides subsp. capri (Mmc), Mycoplasma capricolum subsp. capricolum (Mcc) and Mycoplasma putrefaciens (Mp) in sheep and goats with clinical signs consistent with contagious agalactia.
Afficher plus [+] Moins [-]Shewanella putrefaciens – a new opportunistic pathogen of freshwater fish
2016
Paździor Ewa
In recent years, Shewanella putrefaciens, commonly known as a halophilic bacteria, has been associated with serious health disorders in freshwater fish. Therefore, it has been described as a new aetiological agent of the disease, named shewanellosis. S. putrefaciens is a heterogeneous group of microorganisms, belonging to the Alteromonadaceae family. Based on different criteria, three biovars and biogroups as well as four genomic groups have been distinguished. The first infections of S. putrefaciens in fish were reported in rabbitfish (Siganus rivulatus) and European sea bass (Dicentrarchus labrax L.). Outbreaks in farmed fish were reported in Poland for the first time in 2004. The disease causes skin disorders and haemorrhages in internal organs. It should be noted that S. putrefaciens could also be associated with different infections in humans, such as skin and tissue infections, bacteraemia, otitis. Investigations on pathogenic mechanisms of S. putrefaciens infections are very limited. Enzymatic activity, cytotoxin secretion, adhesion ability, lipopolysaccharide (LPS), and the presence of siderophores are potential virulence factors of S. putrefaciens. Antimicrobial resistance of S. putrefaciens is different and depends on the isolates. In general, these bacteria are sensitive to antimicrobial drugs commonly used in aquaculture.
Afficher plus [+] Moins [-]Identification of novel pathways in pathogenesis of ketosis in dairy cows via iTRAQ/MS
2016
Shu Shi | Xu Chuchu | Xia Cheng | Xiao Xinhuan | Wang Gang | Fan Ziling | Cao Yu | Wang Yanhui | Zhang Hongyou
Introduction: To identify novel pathways involved in the pathogenesis of ketosis, an isobaric tag for relative and absolute quantitation/mass spectrometry was used to define differences in protein expression profiles between healthy dairy cows and those with clinical or subclinical ketosis.
Afficher plus [+] Moins [-]Bentonite diminishes DON-induced changes in bone development in mink dams
2016
Tomaszewska Ewa | Muszyński Siemowit | Dobrowolski Piotr | Kostro Krzysztof | Taszkun Iwona | Żmuda Andrzej | Blicharski Tomasz | Kędzia Paweł
Introduction: The aim of this study was to determine the effect of deoxynivalenol (DON), given alone or with bentonite (which eliminates mycotoxicity) in the diet of mink dams throughout mating, pregnancy, and lactation period to pelt harvesting, on the mechanical properties and geometry of their long bones.
Afficher plus [+] Moins [-]Selected aspects related to epidemiology, pathogenesis, immunity, and control of African swine fever
2016
Woźniakowski Grzegorz | Frączyk Magdalena | Niemczuk Krzysztof | Pejsak Zygmunt
African swine fever (ASF) is currently one of the most severe viral infections of domestic pigs, wild boars, and other hosts belonging to Suidae family. ASF is also considered as the most complex and devastating infectious and haemorrhagic disease of swine due to its severe socio-economic impact and transboundary character. ASF it is a notifiable disease and due to the lack of specific treatment and vaccine, the disease can be only limited by the administrative measures comprising wild boar hunting and stamping out of affected pigs. ASF occurred for the first time in Kenya in 1921 while in Europe (Portugal) the virus was detected at the end of the 1950s. In spite of successful eradication of this threat in a number of affected regions, the virus remains endemic in both feral and domestic pigs in Africa and Sardinia. The ‘new era’ of ASF started in 2007 after its re-introduction to Georgia. Following its intensive expansion, the virus spread to other Caucasian countries, including the territory of the Russian Federation. In 2014 the virus reached Ukraine, Belarus, and, consequently, European Union countries: Lithuania, Latvia, Estonia, and Poland. The occurrence of ASF in wild boars and pigs had a severe impact on both epidemiology and economy because of the national and international transport and trade consequences. Up to date, starting from the February 2014, eighty ASF cases in wild boar and three outbreaks in domestic pigs have been diagnosed. Taking into account the diverse rate of spread in Poland, this review aims to present and discuss the current state of knowledge on ASF including its epidemiology, pathology, transmission, and perspectives of control.
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