11 research outputs found
Effects of kefir on coccidial oocysts excretion and performance of dairy goat kids following weaning
The aim of this study was to investigate effects of kefir, a traditional source of probiotic, on coccidial oocysts excretion and on the performance of dairy goat kids following weaning. Twin kids were randomly allocated to one of two groups at weaning. Kids of the first group received 20 ml of kefir daily for 6 weeks (KEF), while kids in the control group were given a placebo (CON). Individual faecal samples were regularly (n = 18 per kid) taken to quantify the number of coccidial oocysts per gram of faeces (OpG). There were no differences between the groups in terms of body weight development (P > 0.05) and feed consumption. Kids of both groups were not able to consume enough feed to meet their nutrient requirements during the first 3 weeks following weaning. KEF had a lower frequency of OpG positive samples than CON (P = 0.043). Kefir did not affect the maximum oocyst excretion and age of the kids at the highest oocyst excretion (P > 0.05). KEF shed numerically 35% lower coccidial oocysts than the controls, which corresponded to a statistical tendency (P = 0.074) in lowering Log-OpG in comparison to CON. While KEF had a lower frequency of OpG positive samples and tended to shed lower OPG by around one-third, the frequency of diarrhea, level of highest oocyst excretion, and performance of the kids remained unaffected. Therefore, it is concluded that overall effects of kefir do not have a significant impact on sub-clinical infection and performance in weaned kids under relatively high-hygienic farming conditions
New diagnostic tools for transport measurements in the scrape-off layer (SOL) of medium-size tokamaks
Cats and clouds: how a citizen camera-trapping project boosts wildcat (Felis silvestris) conservation
The European wildcat is an elusive small carnivore species whose distribution, behavioural ecology and interactions with domestic cats are scantly known. However, the use of camera-trapping is steadily increasing in wildlife studies as well as citizen science, with the latter setting the basis for a large source of robust data. Here we provide an overview of our efforts to create an independent network, named Piccoli Fototrappolatori Indipendenti (Little Independent Camera-trappers, hereafter PFI), of citizen scientists who are contributing with the goal of a deeper understanding of wildcat ecology. We engaged 31 volunteers who collected domestic cats, putative hybrids (hereafter hybrids) and wildcats' detections at 503 locations throughout Italy from 11/04/2006 to 24/10/2022. So far, this dataset hosts 312 images and 1015 videos (1327 detections) which were morphological examined and standardised, leading to 123, 137 and 1016 detections of domestic cats, hybrids and wildcats, respectively. We documented the expansion of the wildcat towards Northern Italy, with the first camera-trapping records from the Western Alps (Val D'Aosta) and from the Northern Apennines (Liguria), as well as the detection of kink-tailed wildcats in new regions. Moreover, we observed behavioural differences among cat types, with domestic cats marking at a lower rate and with hybrids being less elusive than wildcats at night. Further research and efforts are needed to better explore the conservation consequences of our findings, as well as to investigate the full potential of citizen science combined with camera trapping which are promising tools in wildcat conservation