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Published byShannon Horn Modified over 8 years ago
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Nutrient Management in Mixed Specie Pastures for GOATS An Peischel Small Ruminant Specialist (Goats) Cooperative Extension Service Tennessee State University and University of Tennessee Phone: 615-963-5539
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Sustainability through Biodiversity Persists over generations Flexible Meets needs - present / future Renewable resources used wisely Pollution rate minimal
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Ecosystem Foundation Blocks Succession Water cycle Mineral cycle Energy flow
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Ecosystem Foundation Blocks Succession –Change and development –Complex, stable communities –Competition, interdependence & adaptation Water Cycle –Maximum use of rainfall –Minimize erosion –Percolation / infiltration
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Ecosystem Foundation Blocks Mineral Cycle –Effective cyclic pattern –Biological soil – atmospheric interaction –Continuous decomposing plant & animal residues Energy Flow –Carbon cycle –Keeps all processes of life functioning –Solar power –All living things depend upon plants to harvest (capture) energy from sun & convert it to a useable form
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Nutrition –Environment / weather –Breed –Stage of production –Quality of diet –Age and sex of goats –Body weight and body condition –Activity and exercise Energy and protein levels in balance to reflect stage of Vitamin and mineral requirements are being met production
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Forage Quality & Goat Requirements TDN Dry & Early Pregnant Does Does in Early Lactation Yearling Weanling J-M Luginbuhl
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Forage Quality & Goat Requirements PROTEIN Dry and Early Pregnant Does Yearling WeanlingDoes in Early Lactation J-M Luginbuhl
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Protein (%) J-M Luginbuhl
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T N C (%) 35 30 25 20 15 MarAprMayJunJulAugSept verbina goldenrod ironweed TNC – Lipids, Sugars, Starches, Pectins
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Chemical composition of various plants browsed by goats (%) Browse typeCrude protein Neutral detergent fiber CalciumPhosphorous Multiflora rose 18.834.50.990.32 Honeysuckle 12.834.51.210.30 Brambles 15.924.50.230.84 Privet 18.026.80.890.34 Green briar 17.039.50.600.18 Kudzu leaves 23.7 Trumpet creeper 16.743.10.420.22 J-M Luginbuhl
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Energy Physiological Priorities Energy has the number one effect on reproduction –Basal metabolism –Activity –Growth –Energy reserves –Pregnancy –Lactation –Energy reserves (milk fat) –Estrus cycle / Initiation of pregnancy Hormonal Ovulation –Excess energy reserves
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Management Terrain Physiological state Climate Plant specie Fiber composition Nitrogen content Seasonal patterns Browse and grass Browse Density Plant part Chemical composition Behavior Soil Quantity Residual Dung and urine Grass Browse Fertility Moisture Organic Matter
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Effects of Grazing % of Leaf Removed 40 50 60 70 80 % of Root Stoppage 0 5 50 70 100
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WEEKS OF GROWTH IIIIIIIV Dormant GROWTH RATE (# / AC / DA)
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Recovery time –Soil fertility –Season –Soil water –Temperature –Degree of defoliation –Time of removal –Animal specie
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Pasture Calendar Specie Brome Fescue Wheatgrass Orchardgrass Switchgrass Bluestem Indiangrass Month A M J J A S O
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Diet Preference Differences (percent of diet) PlantHorseCattleSheepGoat Grass90706020 Weeds (forbs) 4203020 Browse (woody) 610 60
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Goat’s Eye 1)Young green leaves / stems 70 – 75% digestible 20% CP 24 – 30 hour turn over rate 2)Old green leaves 60 – 65% digestible 10% CP 50 hour turn over rate 3)Dead / brown leaves 45% digestible 6% CP 65 hour turn over rate 4)Mature stems 35% digestible 4% CP 72 hour turn over rate
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GRAZING HEIGHT, FROM SOIL SURFACE LOWER ….TO HIGHER Horse > Sheep > Cattle > Goat J-M Luginbuhl
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$ $ $ J-M Luginbuhl
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Leaf Tannin (mg/g DM) J-M Luginbuhl
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Cattle alone Goats + Cattle Experimental site after four years of grazing Control Rosa multiflora Thumb. bushes No bushes left.. Stocking rate: 1.4 acre/steer or 1.4 acre/steer + 0.7 acre/goat J-M Luginbuhl
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Recommendation: 1 to 2 goats per head of cattle J-M Luginbuhl
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Electric Fencing (Portable Solar Powered) - Maximize utilization of forage - Allocation based on forage quality and physical condition of goat - Manage individual or mixed plant species - Maintain healthy environment for vegetation and livestock
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Health Disease prevention Fecal analysis Strategic vaccinations Hoof care Biosecurity
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Management –Vegetation – browse, pasture, woodlands –Source alternative feedstuffs –Fencing –Health (disease prevention, foot problems, internal parasites) –Facilities –Dogs – guardian / herding –Behavior –Transportation
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-INTER · RELATIONSHIPS- ITEMPLANTANIMALSOILECON- OMICS SOCIAL Herd Objectives Unit Size Feed on Offer Desired Residual Growth Rate Growing Conditions Animal Conditions Days Browsed Days Grazed
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Cooperative Extension Program
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