ASPECTS CONCERNING THE BREEDING OF LIMOUSIN CALVES IN ALTERNATIVE SYSTEM

The aim of the research was to monitor the growth process of the Limousin calves from birth to weaning (six months old). The research was performed on S.C.TAOS.S.R.L situated in Covasna. In this farm, the rearing of the calves was not made by a technological guide. The maintaining system was outdoor, during summer on pasture, and in the winter season, in free stabulation. The calves had been grown along with the mother cows, having free access to the paddock. The base of feeding was represented by semi-hay, corn silage, barley straw and cereals (barley, wheat and corn) and grazing is made on lowland meadow. The introduction of vegetal food into the calves ration is done at 3 weeks old. In the first period (first month old), the daily gain was 666.7 g at heifers and 800 g at calves. In the second period (from one month old until weaning), the daily gain was 1120 g at heifers and 1200 g at calves. The stress of weaning was present only to the young females; for ten days, these were restless, having the desire for sucking and the appetite for feed has decreased. Their bodyweight has decreased with 12%, the differences being significantly (p ≤ 0.05)

Entomofagy – A Viable Solution for Supporting Food Security

Entomophagy or the practice of eating insects has been known and practiced for millennia by people around the world, and being taken into account in countries where insect consumption is considered to be exotic behavior or the evolution of society begins to impose it. Food security is a prerequisite for the welfare of the population and can be achieved by appropriately capitalizing on the natural resources available to Romania’s agriculture. Its approach and development must be in two directions, strongly interrelated with each other, namely a quantitative one and a qualitative one. The quantitative aspect regards as a matter of priority the provision of the necessary amount of food to meet the physiological needs of a reference population, while the quality aspect focuses on the nutritional value of foods consumed by the population so that its health is not affected or compromised. Considering the two above-mentioned aspects, we consider that the practice of consuming edible insects presents several advantages, both quantitative and qualitative, which should not be neglected in ensuring food security. Innovation must be implemented throughout the agri-food chain, and entomophagy can be one of the viable solutions to support food security. In order to emphasize the importance of entomophagy in ensuring food security, the paper brings to the fore a series os aspects regarding the review of the scientific literature in the field, the nutritional value of insects, the impact of insect food production on the environment, and consumer attitudes towards entomophagy. At the end of the paper, a small attempt is made to assess to what extent Romanian consumers are prepared to accept edible insects in their foo

A systematic review of the development and application of home cage monitoring in laboratory mice and rats

Funding Information: Open Access funding enabled and organized by Projekt DEAL. VV is supported by Jane and Aatos Erkko Foundation. Funding Information: The Vienna BioCenter Core Facilities (VBCF) Preclinical Phenotyping Facility acknowledges funding from the Austrian Federal Ministry of Education, Science & Research; and the City of Vienna. Funding Information: This article is based upon work from COST Action “Improving biomedical research by automated behaviour monitoring in the animal home-cage” (TEATIME; CA20135; cost-teatime.org) supported by COST (European Cooperation in Science and Technology). Funding Information: PK, PM, AJ, BL, CTR, LL, and KH were funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC 2002/1 “Science of Intelligence” —project number 390523135. Funding Information: This article is based upon work from COST Action “Improving biomedical research by automated behaviour monitoring in the animal home-cage” (TEATIME; CA20135; cost-teatime.org) supported by COST (European Cooperation in Science and Technology). Publisher Copyright: © 2023, The Author(s).Background: Traditionally, in biomedical animal research, laboratory rodents are individually examined in test apparatuses outside of their home cages at selected time points. However, the outcome of such tests can be influenced by various factors and valuable information may be missed when the animals are only monitored for short periods. These issues can be overcome by longitudinally monitoring mice and rats in their home cages. To shed light on the development of home cage monitoring (HCM) and the current state-of-the-art, a systematic review was carried out on 521 publications retrieved through PubMed and Web of Science. Results: Both the absolute (~ × 26) and relative (~ × 7) number of HCM-related publications increased from 1974 to 2020. There was a clear bias towards males and individually housed animals, but during the past decade (2011–2020), an increasing number of studies used both sexes and group housing. In most studies, animals were kept for short (up to 4 weeks) time periods in the HCM systems; intermediate time periods (4–12 weeks) increased in frequency in the years between 2011 and 2020. Before the 2000s, HCM techniques were predominantly applied for less than 12 h, while 24-h measurements have been more frequent since the 2000s. The systematic review demonstrated that manual monitoring is decreasing in relation to automatic techniques but still relevant. Until (and including) the 1990s, most techniques were applied manually but have been progressively replaced by automation since the 2000s. Independent of the year of publication, the main behavioral parameters measured were locomotor activity, feeding, and social behaviors; the main physiological parameters were heart rate and electrocardiography. External appearance-related parameters were rarely examined in the home cages. Due to technological progress and application of artificial intelligence, more refined and detailed behavioral parameters have been investigated in the home cage more recently. Conclusions: Over the period covered in this study, techniques for HCM of mice and rats have improved considerably. This development is ongoing and further progress as well as validation of HCM systems will extend the applications to allow for continuous, longitudinal, non-invasive monitoring of an increasing range of parameters in group-housed small rodents in their home cages.publishersversionpublishe