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Результаты 131-140 из 520
Porcine enteric coronavirus infections in wild boar in Poland – a pilot study
2021
Antas, Marta | Olech, Monika | Szczotka-Bochniarz, Anna
Porcine epidemic diarrhoea virus (PEDV) of the Coronaviridae family causes significant economic losses in the pig industry worldwide. Wild boars contribute to the transmission of different viral, bacterial and parasitic infections to livestock animals and humans. However, their role in the maintenance and transmission of PEDV has not been established. In this study, blood and faecal samples from 157 wild boars were collected from 14 provinces of Poland during the 2017–2018 hunting season. RNA was extracted from the faecal homogenate supernatant and subjected to quantitative RT-PCR (RT-qPCR), while clotted blood samples were used for detection of antibodies against PEDV by ELISA. Five blood samples (3.2%) were seropositive in ELISA, while none of the faecal samples were found positive using RT-qPCR assays. The results of this analysis indicate the need for additional studies incorporating a larger number of samples and preferably comparing different serological methods, to confirm whether wild boars in Poland act as PEDV reservoirs.
Показать больше [+] Меньше [-]Clinical use of the parasympathetic tone activity index as a measurement of postoperative analgaesia in dogs undergoing ovariohysterectomy
2021
Hernández-Avalos Ismael | Valverde Alex | Antonio Ibancovichi-Camarillo José | Sánchez-Aparicio Pedro | Recillas-Morales Sergio | Rodríguez-Velázquez Desiderio | Osorio-Avalos Jorge | Armando Magdaleno-Torres Luis | Chavez-Monteagudo Julio | Manuel Acevedo-Arcique Carlos
While the current tools to assess canine postoperative pain using physiological and behavioural parameters are reliable, an objective method such as the parasympathetic tone activity (PTA) index could improve postoperative care. The aim of the study was to determine the utility of the PTA index in assessing postoperative analgaesia.
Показать больше [+] Меньше [-]Embryo transfer as an option to improve fertility in repeat breeder dairy cows
2021
Nowicki Arkadiusz
Repeat breeding is a serious reproductive disorder in dairy cattle. The causes of repeat breeding are multifactorial and there are two main mechanisms: failure of fertilisation or early embryo death, mainly due to poor quality of oocytes and an inadequate uterine environment. Many methods have been used to increase the pregnancy rate for repeat breeder cows, such as intrauterine infusion of antibacterial agents or antibiotics, hormonal treatments for oestrus synchronisation and induction of ovulation, and progesterone supplementation or induction of accessory corpus luteum; however, the results were inconsistent between studies. Embryo transfer (ET) has the capability to minimalise the effects of poor oocyte quality and unfavourable uterine environments on early embryo development during the first seven days after ovulation in repeat breeder cows, and several studies showed that ET significantly improved the pregnancy rate in this group of animals. Thus, ET can be considered an option to increase the conception rate in repeat breeder dairy cows.
Показать больше [+] Меньше [-]Modification of a haematoxylin, eosin, and natural saffron staining method for the detection of connective tissue
2021
Ceccopieri Cassandra | Skonieczna Joanna | Madej Jan P.
The aim of our study was to optimise an existing staining procedure: haematoxylin-eosin saffron (HES). The method follows the classical haematoxylin and eosin protocol with the addition of a staining step using natural saffron to better identify the collagen fibres.
Показать больше [+] Меньше [-]Acrylamide-induced changes of granulopoiesis in porcine bone marrow
2021
Grzybowska Dominika | Snarska Anna
Due to the widely documented and diverse toxic effects of acrylamide, the authors decided to evaluate the impact of high and low doses of this compound on the process of granulopoiesis in porcine bone marrow.
Показать больше [+] Меньше [-]First report of multiple drug-resistant gastrointestinal nematodes of sheep in Arbat District, Sulaymaniyah, Iraq detected by in vivo and in vitro methods
2021
Dyary Hiewa Othman | Banaz Hamasalih Qadir
The control of gastrointestinal nematodes (GINs) in small ruminants is principally dependent on anthelmintic therapy, which encounters the rising problem of anthelmintic resistance (AR) development. Veterinarians reported anthelmintic failure in several sheep farms in Arbat District, Sulaymaniyah, northern Iraq, which called for a systematic study about the efficacy of three commonly used drugs: albendazole, ivermectin, and levamisole.
Показать больше [+] Меньше [-]Effect of negative energy balance on plasma metabolites, minerals, hormones, cytokines and ovarian follicular growth rate in Holstein dairy cows
2021
Song Yuxi | Wang Zhijie | Zhao Chang | Bai Yunlong | Xia Cheng | Xu Chuang
The aim of this study was to evaluate the effect of negative energy balance (NEB) on the final growth of the dominant ovarian follicle in Holstein cows.
Показать больше [+] Меньше [-]Monitored therapy of sporadic mycobacteriosis caused by Mycobacterium genavense in Atlantic canaries (Serinus canaria) and Bengalese finch (Lonchura striata)
2021
Ledwoń Aleksandra | Dolka Izabella | Adamczyk Krzysztof | Szeleszczuk Piotr
Mycobacteriosis is a significant disease of companion and wild birds which causes emaciation and widely distributed lesions, as well as being a potential zoonosis. Its primary aetiological agents in birds are Mycobacterium avium subsp. avium and the fastidious Mycobacterium genavense. This study monitored the therapy of birds naturally infected with Mycobacterium genavense to gain understanding of its effectiveness and the interrelation of co-infections with the disease course and pharmacotherapy.
Показать больше [+] Меньше [-]Local and systemic influence of toxic levels of airborne ozone on the inflammatory response in rats
2021
Chmielewska-Krzesińska Małgorzata | Wąsowicz Krzysztof
Ozone is not harmful itself; however, it directly oxidises biomolecules and produces radical-dependent cytotoxicity. Exposure to ozone is by inhalation and therefore the lungs develop the main anti-inflammatory response, while ozone has an indirect impact on the other organs. This study investigated the local and systemic effects of the ozone-associated inflammatory response.
Показать больше [+] Меньше [-]Seroprevalence of feline foamy virus in domestic cats in Poland
2021
Materniak-Kornas Magdalena | Frymus Tadeusz | Löchelt Martin | Kuźmak Jacek
Feline foamy virus (FFVfca) is widespread and its prevalence in naturally infected domestic cats ranges between 30% and 80% worldwide. The infection is persistent, with a sustained antibody response in FFVfca-positive cats; however to date, no defined disease or clinical symptoms have been proved to be associated with it. The goal of the presented study was to determine the prevalence of FFVfca infection in domestic cats in Poland.
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