Microbial contamination of harvested colostrum on Czech dairy farms

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F21%3AN0000146" target="_blank" >RIV/00027014:_____/21:N0000146 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00027162:_____/21:N0000161 RIV/62157124:16270/21:43879723

Výsledek na webu

<a href="https://vuzv.cz/_privat/21141.pdf" target="_blank" >https://vuzv.cz/_privat/21141.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3168/jds.2020-19949" target="_blank" >10.3168/jds.2020-19949</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microbial contamination of harvested colostrum on Czech dairy farms

Popis výsledku v původním jazyce

A quantitative and qualitative evaluation of microbial contamination of harvested colostrum on 39 Czech dairy farms. The study identified the proportion of colostrum samples that met the recommended goals for total plate count (TPC), total coliform count (TCC), and gramnegative noncoliform count (NCC), and evaluated the effect of the farm, breed, parity, season of the year, time of calving, and colostrum volume on these 3 microbiological parameters. Colostrum samples (n = 1,241; 57.6% from Czech Fleckvieh, and 42.4% from Holstein breed) were collected on dairy farms between 2015 and 2017. The samples were collected after the first milking. In 155 out of 1,241 colostrum samples the species of microorganisms obtained by culture were determined, and the findings were classified into 4 groups: (1) normal inhabitants of bovine skin and mucosa, (2) fecal contaminants, (3) environmental contaminants, and (4) potential gram-positive mammary pathogens. Results showed heavy microbial contamination (TPC median = 408,000 cfu/ mL; TCC median = 200 cfu/mL; NCC median = 80 cfu/mL). Only 28.4% of samples met the requirement for TPC ( < 100,000 cfu/mL), 88.2% for TCC ( < 10,000 cfu/mL), and 86.0% for NCC ( < 5,000 cfu/mL). Among the tested factors, farm had a significant effect on all 3 microbiological parameters, volume of colostrum had an effect on TPC (the highest TPC in < 3.0 L of colostrum), and season had an effect on TCC and NCC. The most of microbes isolated from colostrum belonged to normal inhabitants of bovine skin and mucosa, fecal, or environmental contaminants. Potential gram-positive mammary pathogens were found in 13.5 % of samples. Escherichia coli was isolated from 9.0 % of colostrum samples, and Streptococcus uberis and Streptococcus parauberis were each isolated from 5.2 % of samples. Our study showed high microbial contamination of colostrum collected on dairy farms. Therefore, better hygiene and sanitation around colostrum harvest should be addressed by farmers

Název v anglickém jazyce

Microbial contamination of harvested colostrum on Czech dairy farms

Popis výsledku anglicky

A quantitative and qualitative evaluation of microbial contamination of harvested colostrum on 39 Czech dairy farms. The study identified the proportion of colostrum samples that met the recommended goals for total plate count (TPC), total coliform count (TCC), and gramnegative noncoliform count (NCC), and evaluated the effect of the farm, breed, parity, season of the year, time of calving, and colostrum volume on these 3 microbiological parameters. Colostrum samples (n = 1,241; 57.6% from Czech Fleckvieh, and 42.4% from Holstein breed) were collected on dairy farms between 2015 and 2017. The samples were collected after the first milking. In 155 out of 1,241 colostrum samples the species of microorganisms obtained by culture were determined, and the findings were classified into 4 groups: (1) normal inhabitants of bovine skin and mucosa, (2) fecal contaminants, (3) environmental contaminants, and (4) potential gram-positive mammary pathogens. Results showed heavy microbial contamination (TPC median = 408,000 cfu/ mL; TCC median = 200 cfu/mL; NCC median = 80 cfu/mL). Only 28.4% of samples met the requirement for TPC ( < 100,000 cfu/mL), 88.2% for TCC ( < 10,000 cfu/mL), and 86.0% for NCC ( < 5,000 cfu/mL). Among the tested factors, farm had a significant effect on all 3 microbiological parameters, volume of colostrum had an effect on TPC (the highest TPC in < 3.0 L of colostrum), and season had an effect on TCC and NCC. The most of microbes isolated from colostrum belonged to normal inhabitants of bovine skin and mucosa, fecal, or environmental contaminants. Potential gram-positive mammary pathogens were found in 13.5 % of samples. Escherichia coli was isolated from 9.0 % of colostrum samples, and Streptococcus uberis and Streptococcus parauberis were each isolated from 5.2 % of samples. Our study showed high microbial contamination of colostrum collected on dairy farms. Therefore, better hygiene and sanitation around colostrum harvest should be addressed by farmers

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40301 - Veterinary science

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Dairy Science

ISSN

0022-0302

e-ISSN

—

Svazek periodika

104

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

11047-11058

Kód UT WoS článku

000736976500023

EID výsledku v databázi Scopus

2-s2.0-85110553606