Florida faces a critical challenge in wetland management as invasive species threaten ecosystem integrity across the state. The South Florida Water Management District identifies approximately 200 introduced plant and animal species established in the region, with 66 non-native plant species designated as priorities for control. Current management strategies rely heavily on mechanical removal, prescribed burns, and herbicide applications—methods that are expensive, labor-intensive, and may have unintended ecological consequences.
Simultaneously, livestock grazing in wetland environments remains controversial and understudied, particularly in subtropical climates. While extensive research documents livestock impacts on wetlands, the vast majority focuses on cattle in temperate regions. Research on sheep grazing in subtropical wetlands, specifically using parasite-resistant hair sheep breeds, remains critically limited.

1579 Walsh Street Oviedo,
Florida 32765

© 2025 Black Hammock Family Farm.
All rights reserved.
Katahdin sheep represent a unique opportunity for Florida wetland management due to their specific biological adaptations:
Parasite Resistance: Research demonstrates that Katahdin sheep possess significantly higher parasite resistance than conventional wool breeds. Studies conducted at Virginia Tech and Arkansas showed Katahdin sheep had fecal egg counts 45% lower than Dorper crosses and required substantially less anthelmintic treatment than wool breeds. Their Caribbean hair sheep ancestry provides genetic resistance evolved in hot, humid, high-parasite environments—precisely the conditions present in Florida wetlands.
Climate Adaptation: Katahdin sheep demonstrate well-developed heat tolerance in tropical and subtropical regions. Their hair coat (rather than wool) allows superior thermoregulation in humid conditions where wool breeds experience heat stress. University of Florida research identifies Katahdin as one of six meat breeds demonstrating ability to naturally minimize parasite burdens in Florida conditions.
Selective Grazing Behavior: Sheep exhibit different grazing patterns than cattle. Research indicates sheep nibble grass close to the ground and selectively consume flowers and certain vegetation types. This selective grazing could target specific invasive plant species while minimizing impact on desired native vegetation.
Reduced Wetland Impact: Sheep are lighter and more agile than cattle, causing less soil compaction and trampling damage. Studies in New Zealand and British Columbia specifically noted that sheep grazing can be preferable to cattle in fragile wetland environments vulnerable to poaching (soil damage from hoofprints in wet conditions).
Vegetation Management Without Chemicals: Multiple studies demonstrate that moderate grazing intensity can increase plant species diversity and control dominant invasive species that exclude less competitive native plants. Research in California vernal pools showed that reintroduced grazing at moderate stocking rates significantly increased both diversity and native cover after just two years. European wetland studies found that patchy, occasionally intense grazing increased protected plant species and habitat heterogeneity while benefiting both conservation and agricultural goals.
Cost-Effective Management: The solar grazing industry demonstrates that sheep can provide effective, economical vegetation management. While mechanical mowing requires expensive equipment, fuel, and risks panel/infrastructure damage, sheep provide continuous low-cost maintenance while generating potential revenue through meat production.
Ecosystem Services: Properly managed grazing can create habitat heterogeneity that benefits wildlife. Research in Hungarian marshes showed increases in wetland bird populations, protected plant species, and patches of open vegetation with grazing intensity gradients. The key is avoiding continuous heavy grazing while allowing patchy, varied grazing pressure.
Carbon Footprint Reduction: Replacing mechanical vegetation management eliminates fossil fuel consumption for mowers while integrating livestock production into ecosystem restoration.
Hypothesis: Katahdin sheep grazing at moderate stocking densities (2-4 sheep/acre for 2-4 week periods) will significantly reduce biomass of target invasive species compared to ungrazed control areas, while maintaining or increasing native plant species diversity.
Hypothesis: Moderate-intensity sheep grazing will maintain water quality parameters (turbidity, nitrogen, phosphorus, fecal coliform bacteria) within acceptable ranges for wetland ecosystem health, with impacts significantly lower than documented cattle grazing effects.
Hypothesis: Katahdin sheep grazing on Florida wetland vegetation will maintain adequate body condition scores and parasite resistance within acceptable management thresholds, requiring no more than 15% of animals to need anthelmintic treatment during the grazing period.
Hypothesis: Sheep grazing vegetation management costs will be ≤50% of equivalent mechanical mowing and herbicide application costs over a 12-month period, while producing marketable lamb weight gain.
Hypothesis: Sheep grazing vegetation management costs will be ≤50% of equivalent mechanical mowing and herbicide application costs over a 12-month period, while producing marketable lamb weight gain.
All sheep management will follow American Veterinary Medical Association guidelines
Monitoring protocols ensure early detection of heat stress or health issues
Access to shade, clean water, and supplemental minerals as needed
Immediate veterinary intervention protocols established
Grazing exclusion during critical wildlife breeding/nesting periods
Monitoring for any decline in threatened or endangered species
Adaptive management to respond to unintended impacts
Coordination with Florida Fish and Wildlife Conservation Commission
Results may be specific to Black Hammock Farm's wetland types and may not generalize to all Florida wetlands
Seasonal variation requires multi-year data collection for robust conclusions
Initial infrastructure investment may limit adoption by other landowners
Weather variability in Florida may affect consistency of grazing schedules

There's something almost quiet about the way a skilled shepherd walks into a pasture.
No clipboard. No lab results. No equipment to calibrate. Just eyes that know what to look for — and hands that have learned to listen.
In a few seconds, those hands can tell a story: whether a ewe is thriving or struggling, well-nourished or quietly heading toward trouble. It's not magic. It's a technique. And this Saturday at Black Hammock Farm, students of all ages will learn how to do it themselves.
Body Condition Scoring (BCS) is a standardized, repeatable method for evaluating the fat and muscle on a sheep's frame. It gives farmers and veterinary professionals a shared, consistent language for describing an animal's nutritional status — without needing scales, ultrasound equipment, or bloodwork.
The assessment is performed entirely by touch. An evaluator runs their hands along specific bony landmarks on the animal's back and loin, and what they feel — sharp and prominent, smooth and rounded, or buried under fat — maps directly to a numerical score on a 1-to-5 scale.
This is hands-on livestock science education in its most direct form: a child placing their hands on a living animal and reading what the body is saying. Visit communotfarm.com to see how CommunOT Farm & Programming builds experiences like this one from the ground up.
The standard U.S. BCS scale runs from 1 (emaciated) to 5 (obese), with half-scores used for greater precision in the middle range. In a well-managed flock, 90% of animals should score between 2 and 4.
Here's what each score looks and feels like in practice:

The difference between a 2.5 and a 3.5 isn't just a number on a chart. Research from Oregon State University found that ewes scoring in the 3.0–3.5 range at lambing weaned 82% more pounds of lamb per ewe compared to ewes at 2.5. A single BCS unit change represents roughly 13% of a ewe's live weight — about 20 pounds for a 150-pound animal.
That's the kind of real-world data that makes body condition scoring for sheep one of the most powerful tools in livestock management — and one of the best lessons a student can learn on a working farm.
Visual appraisal alone is unreliable — especially in wooled breeds where fleece can obscure the animal's true condition. BCS must always be done by hand. The assessment focuses on three anatomical landmarks in the loin area, just behind the last rib.
Run fingers along the top of the spine. At Scores 1–2, the processes are sharp and prominent. At Score 3, they're rounded and felt only with pressure. At Scores 4–5, they're buried and undetectable.
These are the horizontal projections off the spine. Test whether you can slip your fingers underneath them. At Score 1, fingers pass easily under. At Score 3, smooth and rounded — pressure is needed. At Score 5, buried entirely in fat.
This is the area between the last rib and the hip. In ideal condition, it feels firm and smooth without sharp edges. At low BCS, the muscle is shallow with no fat padding. At high BCS, the muscle is deep and cushioned with thick fat.
Students at Black Hammock Farm will walk through all three landmarks during the farm lab — guided step by step through the same assessment technique used by professional shepherds and veterinary staff across the country.
Knowing a score is only meaningful if it triggers the right response. BCS management isn't static — it changes based on where a ewe is in her reproductive cycle.

This is what makes hands-on farm science in Central Florida so compelling: it's not abstract. Every number on that table represents a decision a real farmer makes, on a real animal, with real consequences. That's the kind of science that sticks.
Learn more about how CommunOT structures farm-based science learning at communotfarm.com.
Here's something that might surprise you. When a student performs a BCS assessment — pressing their hands along a sheep's spine, feeling for sharpness or roundness, applying deliberate pressure to locate a bony landmark — they're not just learning science.
They're using proprioception.
Proprioception is the body's awareness of pressure, resistance, and spatial positioning. It's the same sensory system occupational therapists target to support motor planning, body awareness, and self-regulation in children with sensory processing needs.
This is the heart of what CommunOT Farm & Programming does: design experiences where the therapeutic input and the educational outcome are the same activity. Hands-on animal interaction provides deep proprioceptive input that is both scientifically productive and therapeutically beneficial — for every learner in the pasture.
Join Us This Saturday at Black Hammock Farm
This is your child's chance to learn a real livestock health technique — not from a diagram, but from a sheep.
Space is limited, and this is a small-group hands-on experience. Once it fills, it fills.
Event Details:
Date: Saturday, March 14, 2026
Time: 10:00 – 11:30 AM
Location: Black Hammock Farm, Oviedo, FL
Cost: $30 per student
Ages: 2–18 · All learners welcome
👉 Reserve your spot at communotfarm.com
A good shepherd reads the flock. This Saturday, your child learns how.
CommunOT Farm & Programming is a pediatric occupational therapy organization based in Seminole County, FL, dedicated to integrating sensory-rich, nature-based experiences into developmental programming for children ages 2–18. Register and learn more at communotfarm.com.

1579 Walsh Street Oviedo,
Florida 32765

© 2025 Black Hammock Family Farm. All rights reserved.