Agricultural Livestock Farming Research Articles

Social Acceptance Scale—development of an instrument for the differentiated measurement of social acceptance in agricultural livestock farming

This paper presents the development and validation of the Social Acceptance Scale (SAS), an instrument designed to measure social acceptance, particularly in transformative sectors like agricultural livestock farming. Recognizing the need for a nuanced acceptance scale, various facets of acceptance across a three-level continuum were delineated, spanning from opposition to commitment, encompassing eight distinct items. The SAS's creation and validation process included the conceptual and empirical testing of four validity types: content validity, face validity, construct validity, and criterion validity. Content and face validity involved construct definition, item generation, iterative review, and pilot testing to ensure theoretical soundness. Empirical testing encompassed construct validity through statistical validation and assessments of factorial and convergent validity. Furthermore, criterion validity was explored by examining associations with related constructs, enhancing the SAS's external applicability. In conclusion, this paper introduces the SAS as a tool to measure social acceptance within transformative sectors. It underscores the necessity for a comprehensive acceptance scale, offering a detailed account of its development and validation. The discussion section acknowledges limitations and outlines potential directions for future research in this domain.

LIVE FENCES HAVE GREATER DIVERSITY OF BIRD ASSEMBLAGES THAN GALLERY FORESTS IN HUMAN-MODIFIED ECOSYSTEMS

Anthropogenic activities have led to changes in land use resulting in fragmented areas with a reduction of biodiversity and ecosystem services. Gallery forests and live fences are common elements in Neotropical agricultural landscapes that could contribute to the conservation of bird species and the services they provide. However, we need to better understand how different tree cover types influence bird assemblages in order to conserve biodiversity. I analysed the diversity of bird assemblages in space and time across two cover types in three agricultural-livestock farms in Guanacaste, Costa Rica. Bird assemblages were sampled during 2019 using transects, covering both the dry and rainy season. I estimated richness and relative abundance of bird assemblages at each tree cover type and site. To characterize vegetation structure, I calculated plant richness, diameter at breast height and tree height. Patterns in bird diversity changed at a spatial scale, whereas remained similar in time. Bird assemblages had consistently higher richness and abundance in live fence than in gallery forest in the three study sites. In addition, live fences resulted in a less structural complexity compared to gallery forest, as indicated by decreased plant richness and tree height. My results show that live fences play an important role for birds, allowing for more diverse avian assemblages in human-modified ecosystems. Although live fences are less structurally complex and may offer less suitable habitats for birds than gallery forests, they might provide complementary food resources and act as stepping-stones for both resident and migratory bird species. Thus, live fences may perform as corridors for birds increasing connectivity in rural landscapes, which make them an essential tool for bird conservation.

Experimental Water Treatment Plant from Agrozootechnical Farm

According to the existing statistical data at the country level, over 65% of the wastewater (rural from agricultural livestock farms) is discharged without purification, 61% are insufficiently purified and only 10-15% are properly purified. The pollution effect of wastewater not purified or insufficiently purified on surface waters, is mainly manifested by the content of suspended matter, of organic matter, in nutritional salts, ammonium and in pathogenic microorganisms. It is well-known that the nutritional salts of nitrogen and phosphorus cause the eutrophication of surface waters, with the effect of consuming the dissolved oxygen needed to sustain the aquatic life. Ammonia is particularly toxic to aquatic life. Unsaturated or insufficiently purified wastewater pollutes groundwater, among others with nitrates, ammonium and bacteriologically. From the presented results, the purification of waste water is an essential requirement of the development of human civilization. Being a necessity with special social and ecological implications, the unitary regulation and the general provision of the necessary infrastructure is a priority, in this sense an article will be presented in an experimental treatment station that performs the collection of waste water from an agrozootechnical farm. The purification of water within this experimental model of treatment plant will be done autonomously from an energy point of view (electricity supply is carried out through a hybrid system based on photovoltaic panels and wind turbine), and the recovery. The use of purified water is done in a greenhouse, using a mixed irrigation system (dripping / spray irrigation).