Technology

Virtual Fencing to preserve ecosystem services

Virtual Fencing collar, Nofence (Norway)
Virtual Fencing operational scheme
Example of Nofence management App screenshot

About

The practical solution proposed combines i) the use of a prediction model (VISTOCK model, Bellini et al., 2022) which use remote sensing (i.e., satellite) Normalized Difference Vegetation Index (NDVI) and estimated thermal and water stresses to simulate daily dry matter (DM) production and biomass dynamics of grasslands and ii) Virtual Fencing to improve livestock grazing management in Mediterranean agroforestry systems so as to sustain rational grazing during the season. Virtual Fencing (VF) aims at replacing the traditional physical fences by virtual one. Animals are provided with collars which contains a GPS tracker, and through an App, farmers can design virtual grazing surfaces by using GPS coordinates, which are downloaded on each collar by GSM. When the animals are close to the virtual boundaries, they receive a paired stimulus: an audio cue followed by a low electrical pulse if the animal continues to walk forward. After few days of training animals learn to associate the audio cue to a forbidden direction and, in most of the case, the electrical pulses are no longer delivered.
Objectives of the project
The general objective will be to test VF application on Sardo-Modicana cattle breed and on Sarda lactating sheep to optimize pasture utilization through rational grazing according to forage supply along the season.
The specific objectives that will be pursued will be:
i) to assess the animal’s ability to learn, and so, to avoid the adverse stimulus.
ii) to calibrate and test the VISTOCK model (Bellini et al., 2023) in the specific area for monitoring available aboveground biomass and forage resource along the grazing period
iii) to use the data collected and estimated by the model to sizing the grazing plots
iv) to evaluate the efficiency of the system to manage the herd and the flock within grazing areas virtually delimitated.
v) to assess whether VF impact animal welfare by determining hair cortisol in cattle for chronic stress, and milk yield and cortisol in sheep.
Ecological context
The practical solution studied can be applied to estimate biomass above-ground production and to optimize its utilization by livestock managed through Virtual Fencing in alpine, arid, or semi-arid rangelands.
Main constraints

The main constraints are
i) the lack of network coverage in many rural areas, which makes the connection to sensors and the download of real-time data difficult;
ii) the cost of sensors, especially the ones that need to be placed on every animals, whose purchase should be sustained by public funding plan, such PSR;
iii) the lack of digitalization in livestock management which hinder the systems integration to build a comprehensive decision-making tool for farmers;
iv) the availability of cloud-free satellite images to force VISTOCK model.

Indexes

Workers needed
Skilled workers are essential 

Ease of use
Learning to use the solution requires little time

Adaptability
Quick and easy to be adopted

Effectiveness
The solution address the challenge / problem

Reliability
The innovation is sufficiently stable over time

Cost
The investment needed to implement the innovation

Greenhouse emissions
Impact of on climate change

Water availability
The impact of technology on water availability

Water quality
The impact of technology on water quality

Main business opportunities
Main business opportunities are:
i) maximize livestock’s biomass intake by applying rotational grazing, thus reducing the amount of feed integration with external sources;
ii) reduce the cost for physical fences installation and maintenance,
iii) reduce the time effort for move the livestock among different grazing lot and for monitoring them;
iv) real-time control on each animal to promptly intervene before health was compromised.
Socio-economic context
Virtual Fencing (VF) can be used in i) pasture-based livestock system, where an optimization of forage intake is needed to reduce the use of purchased feed; ii) small-medium herd and flocks and on farms with large grassland extents where the cost for physical fences becomes unaffordable as well as the time required for their maintenance; iii) small-sized farms where the labor shortage doesn’t allow the adoption of rotational grazing iv) in environmental sensitive areas to herd livestock outside
Information to maximize the adoption
The adoption of this practical solution can be promoted by improving the reliability for above-ground biomass estimation and building-up an open and easy-to-use platform for farmers to access data of their pastures. The adoption of virtual fencing, as well as other sensors on animal can be facilitate by public funding initiatives to support the purchase of digital tools on livestock farms. Technical competences on the proper use of such devices should be fostered among farmers to avoid negative impacts on animal welfare.

The adoption of virtual fencing, as well as other sensors on animal can be facilitate by public funding initiatives to support the purchase of digital tools on livestock farms. Technical competences on the proper use of such devices should be fostered among farmers to avoid negative impacts on animal welfare. Research is needed to better understand the technology reliability and effectiveness according to species, breed, age, and other factors which could affect animal’s learning capacity and response to cues delivered by VF collars.

Technology Feedbacks

Andrea Galante

Primo Principio S.c.a.r.l.

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Fracesco Martini

Abinsula S.r.l.

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Indicators

The indicators are key metrics within the SALAM-MED project, allowing an objective assessment of the environmental, economic and social sustainability aspects for each technology in the different Living Labs. This analysis is essential to validate the effectiveness of the solutions developed and will be the starting point for the future use of the results obtained, thus contributing to significant progress in research and innovation for sustainability.

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Technical data sheets and documentation – Virtual Fencing to preserve ecosystem services

Living Labs for testing and implementing this technology

Living Labs as a crossroads for the development of sustainable and resilient technologies for environmental, economic and social progress.

Italy

Technology responsabile

Department of Agriculture, Food, Environment and Forestry (DAGRI)

Tech Responsible contacts

Chiara Aquilani
chiara.aquilani@unifi.it 

Camilla Dibari
camilla.dibari@unifi.it 

References

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