1. Joe Vendramini Forage Specialist Range Cattle Research and Education Center - Ona FL Are you prepared for the winter ?

4. Hay Cost for Hay production - 2007

5. Storage System Dry Matter (%) Animal Refusal (%) TOTAL(%) Ground282250 Gravel311748 Tires35 641 Rack26 632 Rack with cover12 214 Barn 2 1 3 Storage Losses * Hay stored for 7 months

6. Nutritional Requirement Beef Cattle DM, CP and TDN requirements ClassTDN (%) CP (%) Dry cow mid preg487 Mature cow 10# milk569 2 yr old lact cow6311

7. Forage Testing Results 2007 SpeciesCP (%)TDN (%) Coastal Bermuda12.052.8 Stargrass10.253.6 Limpograss5.053.4 Bahiagrass8.149.7 Rhizoma Peanut14.268.8

8. Forage Testing Results 2007 SpeciesCP (%)TDN (%) “Horse” Hay8.348.0 “Cattle” Hay5.549.0

9. What to expect in the drought? Increased hay prices Hay with lower nutritive value Longer regrowth period to achieve target herbage mass Marketing opportunity

10. Production x Nutritive Value Coastal bermudagrass WeeksYield (lb/A)CP (%)TDN (%) 215001656 421001357 63200952 836007.548 1046008.046

11. Hay price calculation Hay value calculation: $/ lb TDN Example: $ 50 / round bale Weight (lb)TDN (%)TDN/bale$ / TDN 1000606000.08 1000505000.10 (~20%)

12. Forage Extension Lab http://rcrec-ona.ifas.ufl.edu/felgform.pdf or County Extension Offices

13. Stockpiled Forage

15. Species

16. Stockpiled Forage Advantages High production Competitive with weeds Adapted to wet soils Superior late fall and early spring production Limpograss

17. Stockpiled Forage AdvantagesDisadvantages High productionLow CP concentration Competitive with weedsNot well adapted to dry, deep, sandy soils Adapted to wet soilsDifficult to cure for hay at advanced growth stages Superior late fall and early spring production Limpograss

18. Stockpiled Forage

19. Fertilization N rateCPTDNTDN:CP lb/acre% 455.6509.1 1357.3547.4 Effects of N fertilization on Limpograss nutritive value

20. Stockpiled Forage Weight Gain Calf Weight Preg Rates lbs % Limpograss-11554791.6 Bahia + hay-8853592.2 Comparing Limpograss and Bahia + hay winter grazing systems

21. Supplementation Supplement NoneCUCUUP ADG (lbs)0.130.901.23 Effects of protein supplementation on heifers grazing Limpograss pastures CU = corn + urea (1.5 lbs/head/d) CUUP = corn + urea + RUP (1.5 lbs/head/d)

22. Winter Pastures

24. Annual Ryegrass Dry matter yield of selected ryegrass cultivars at the Overton TX (3 yr. average) VarietyYield (lb/ac) Jumbo7474 Prine7358 Marshall7126 Ed7067 Jackson6744 TAM 906556 Gulf6256

25. Annual Ryegrass Dry matter yield of selected ryegrass cultivars at the RCREC- Ona, FL (5 yr. average) VarietyYield (lb/ac) Prine6000 Jumbo5800 King5800 Jackson5400 Marshall5000 Gulf4800

26. Cool-season annuals In 2007, the average $$ for ryegrass seed was 0.70/lb for Tetraploid (Jumbo) and 0.50/lb for Gulf. 0.20/lb x 20 lbs/ac = $ 4.00/ac

27. Annual Ryegrass Establishment Method of EstablishmentRyegrass Yield (lb/ac) Control 0 Overseeded 150 Gramoxone + overseeded (1.3 pt) 630 Light disk + overseeded 740 Roundup + overseeded (2 qt) 3400 Prepared seedbed + overseeded 3200

28. Cool-season annuals Nutritive value: 70-80% TDN and 20- 25% CP

29. ADG (lbs/d) Cottonseed meal (lbs/d) Effect of cottonseed meal supplementation or part-time grazing ryegrass on performance of replacement heifers grazing stockpiled Limpograss

30. ADG (lbs/d) Cottonseed meal (lbs/d) Effect of cottonseed meal supplementation or part-time grazing ryegrass on performance of replacement heifers grazing stockpiled Limpograss RyegrassRyegrass

31. Economics of part-time grazing ryegrass Days Grazing Ryegrass Cost of Ryegrass establishment + fertilization / acre CSM $ Equiv.$100$150$200 $ -----$----- 1242-58-108-158 2484-16-66-116 3612626-24-74 481686818-32 Stocking rate = 3 heifers/acre of ryegrass Cottonseed meal (CSM) = $200 / ton Grazing part-time ryegrass 12 d /month = 420 lbs cottonseed meal

32. Thanks!! Joe Vendramini Forage Specialist Range Cattle Research and Education Center Ona FL jv@ufl.edu