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Wyszukujesz frazę "dairy cows" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Analysis of the microbial population that most often causes mastitis in dairy cows
Autorzy:
Radzikowski, Daniel
Powiązania:
https://bibliotekanauki.pl/articles/1178967.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
dairy cows
mastitis
microbial population
milk
Opis:
Mastitis is the most important disease of dairy cows, affecting the major economic losses of milk producers and the dairy industry around the world. In the work on the basis of data from the laboratory dairy plants analyzed the occurrence of microorganisms causing mastitis. Based on microbiological studies, 1462 milk samples taken from quarters of the cows' udders showed that the most common cause of inflammation was Streptococcus agalactiae, whose strains occurred in 27.77% of mastitis cows. In 18.13% of cows mastitis was caused by Staphylococcus aureus, 14.91% by Eschericha Coli, 8.55% by Streptococcus uberis, and 8.82% did not show bacterial growth during microbiological tests. In order to reduce the occurrence of mastitis, appropriate hygiene should be followed during milking of cows and, in the case of disease, cows udder milk should be tested to identify the microorganism causing inflammation and prepare appropriate antibiotic therapy.
Źródło:
World Scientific News; 2017, 89; 317-321
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mastitis pathogens in dairy cattle – a review
Autorzy:
Kalińska, Aleksandra
Gołębiewski, Marcin
Wójcik, Agata
Powiązania:
https://bibliotekanauki.pl/articles/1178860.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
dairy cows mastitis udder bacteria fungi
Opis:
Udder inflammations are one of the most common diseases of high-yielding dairy cows that cause high economic losses and have negative influence on milk technological value. Nowadays, pathogens involved in the inflammation process present lower susceptibility to antibiotics and around 90% of mastitis cases is caused by environmental bacteria. This situation forces researchers for seeking new solutions in mastitis prevention and treatment. The aim of this paper was to describe bacteria, fungi and algae are most common reasons of mastitis in dairy cows.
Źródło:
World Scientific News; 2017, 89; 22-31
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Susceptibility to antibiotics of bacterial microorganisms most commonly isolated from clinical and subclinical forms of mastitis in cows
Autorzy:
Radzikowski, Daniel
Powiązania:
https://bibliotekanauki.pl/articles/1178235.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
antibiotic therapy
antibiotics
dairy cows
mastitis
resistance
sensitivity
Opis:
Mastitis is an increasing problem in dairy farms and in the dairy industry. The paper presents changes in susceptibility of strains of bacteria isolated from quarter milk cows from mastitis in 2011, 2012, 2013, 2014, 2015 in the Factory Laboratory of Dairy Cooperative in south-eastern Poland. In total, 3409 strains of staphylococci, 2774 strains of streptococci and 423 strains of E. coli were isolated in these years. Susceptibility to antibiotics was examined by the disc diffusion method on Mueller-Hinton base. On the basis of the research it can be concluded that the highest sensitivity of staphylococci in all study periods is found for cefguin (from 91.2% to 96.1%) and cefapirin (92.2% to 96.2%), and the smallest for tetracycline (18 %), streptomycin (11.9%) and amoxicillin (9.3%). The highest sensitivity of bacteria from the Streptococcus family are cefapirin (97%), cefquinome (96.1%), amoxycycline (95.6%) and cefalexin (89.9%) on average in all years of research. The highest resistance was found for neomycin and streptomycin. They show that during the period under study over 90% of Escherichia coli were sensitive to streptomycin. Sensitivity at the level of 70%-80% was noted for amoxicillin, neomycin and cefapirin. The highest resistance of E. coli bacilli evolved for cefallaxin and tetracycline. Accordingly, early diagnosis of a pathogenic pathogen, and then selecting the appropriate form of treatment, gives you the opportunity to minimize the loss of mastitis in dairy cows.
Źródło:
World Scientific News; 2018, 93; 107-114
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variations in Responses to the Superovulatory Hormone Doses using Crossbred HF Dairy Cows in Ethiopia
Autorzy:
Jemal, Hamid
Lemma, Alemayehu
Degefa, Tamrat
Powiązania:
https://bibliotekanauki.pl/articles/1193345.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
CL count
FSH dose
dairy cows
embryo quality
ovarian response
Opis:
Response to the superovulatory hormone treatments varied for the type of breed and doses of superovulatory hormone used. Ovarian response of 42 crossbred HF (50%, 75%) and pure dairy cows were evaluated based on ultrasonographic count of CL and embryo recovery for quality assessment. Ovarian response rate was significantly higher (P<0.05) in the crossbreds than in the pure bred cows. The maximum response achieved (CL count, mean ± SE) was 14.6±1.1 and the least with 11.2±1.1, 75% HF at 650IU and pure HF at 800IU, respectively. Significantly higher (p<0.05) number of UFO were collected at a dose of 500 IU while transferable embryos were higher at 650IU in both the 50% HF and 75% HF cows. Pure bred cows responded fairly with more CL and produced higher number of transferable embryos at a dose of 800 IU FSH. In conclusion, the optimal dose for maximum response (CL count) exhibited in cross breed HF cows is 650 IU.
Źródło:
World Scientific News; 2021, 154; 66-75
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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