Browsing by Subject "Beef"

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  • Osemwowa, Etinosa; Omoruyi, Iyekhoetin Matthew; Kurittu, Paula; Heikinheimo, Annamari; Fredriksson-Ahomaa, Maria (2021)
    Beef can easily be contaminated with bacteria during the meat production chain. In this work, we studied the contamination levels of mesophilic aerobic bacteria (MAB) and thermotolerant coliform bacteria (TCB) on raw beef surfaces from small shops in Helsinki, Finland and meat markets in Benin City, Nigeria. We also investigated the prevalence of Salmonella, Campylobacter, Yersinia, Shiga toxin-producing Escherichia coli (STEC), Listeria, and cephalosporin-resistant E. coli (CREC). In total, one hundred unpacked raw beef samples from Finland and Nigeria were collected in 2019. The median MAB and TCB counts were significantly (P < 0.001) higher on beef from Nigeria than from Finland. The median MAB and TCB counts in Nigeria were 7.5 and 4.0 log10 cfu/cm2, respectively, and 6.5 and 2.8 log10 cfu/cm2 in Finland, respectively. Most (94%) Nigerian samples were unacceptable according to limits set by the EU. Beef samples from meat markets in Benin City were significantly (P < 0.05) more frequently contaminated with Salmonella, STEC, and CREC than beef samples from small shops in Helsinki. Salmonella, STEC, and CREC were isolated from 30, 36, and 96% of Nigerian samples, respectively, and from
  • Hakala, Tuuli (Helsingin yliopisto, 2019)
    Efforts must be made to reduce greenhouse gas emissions from dairy and beef production in order to curb climate change. The aim of this study was to investigate the impact of milk yield, longevity, fertility and live weight of dairy cows, calf mortality and feeding of dairy cows on greenhouse gas emissions of dairy and beef production. The analysis was carried out by production systems and by the total bovine sector, with total annual milk and beef production in each scenario being constant. The research method used was the Global Livestock Environmental Assessment Model (GLEAM) based on Life Cycle Assessment (LCA) developed by FAO (Food and Agriculture Organization of the United Nations). Calculations were made using the GLEAM-i -tool. The results showed that greenhouse gas emissions from milk production fell as average milk yield increased, cow longevity improved and live weight decreased. Decreased calf mortality or improved fertility of dairy herds did not affect milk output. The focus of beef production varied between the milk system and suckler cow production in the scenarios, which also led to a shift of greenhouse gas emissions from one system to another. Total bovine sector emissions decreased as average milk yields increased, cow fertility improved, calf mortality decreased and dairy cows live weight decreased. Increasing the proportion of concentraits in dairy cattle feeding reduced the greenhouse gas emissions of milk. Regarding feeding results, it should be noted that the calculation does not include land use change or carbon capture in feed production. Based on this study, it is possible to reduce the greenhouse gas emissions of Finnish milk production and the main breeding goals of dairy cattle support the promotion of climate efficiency. The live weight of dairy cows should possibly be limited. However, the interconnectedness of milk and beef production should be taken into account and the changes in emissions in dairy and beef cattle should be monitored simultaneously.
  • Niva, Mari; Vainio, Annukka (2021)
    This study investigated consumers' self-reported past changes and future intentions to change the consumption of beef and alternative, plant- or insect-based protein products. A survey of 18-79-year-old consumers in Finland (N = 1000) was analysed with latent class analysis, and five consumer clusters were identified. The largest cluster (37%) consumed beef, but no alternative protein products; three clusters incorporated alternative protein products in their diets in different ways (in total 55%); and one cluster did not consume beef or alternative proteins (8%). In total 27% of the respondents intended to reduce the consumption of beef in the future, whereas 26% planned to increase the consumption of plant-based and 24% planned to increase the use of insect-based protein products. Multinomial logistic regression indicated that the use of alternative proteins was associated with higher health and sustainability motives, and lower food neophobia. The results suggest that demand for new, more sustainable proteins and protein innovations will grow in the future.