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Annual Ewe Management Program(Fall Lambing)
I. Ewe Production Stages
Flushing:April15 to May 1Breeding:May1 to May 31EarlyGestation:May15 to September 15LateGestation:September15 to October 15AverageLambing Date:October15Lactation:October15 to December 15AverageWeaning Date:December15Post-Weaning:December15 to December 20Maintenance:December20 to April 15
II. Nutritional Flushing(15 days)
Management1. Highly Intensive(a) Enter in 1.5 to 2.0 BCS(b) De-worm all ewes on April 7(c) Flush with cool season grass(d) Teasers in on April 15/out onMay 1(e) Fertile rams with markingharnesses in on May 1
II. Nutritional Flushing(15 days)
ManagementHighly IntensiveADG = 0.2 to 0.25lb/ewe/dLeave in 2.0 to 2.5 BCSCan’t flush > 3.0 BCSProducts of nutritional flushing(1) Stimulate out-of-seasonbreeding(2) Synchronized breeding(3) 15 to 20% higher lambing rate(e) Mineral, water, shade
III. Breeding(31 days)
ManagementHighly IntensiveContinue flushing regimen all ofbreeding periodCheck raddle marks daily. RecordRemove rams on May 31Leave ewes in same pasture for7 to 10 days after ram removalLeave breeding in 2.0 to 2.5 BCSMineral, water, shade
IV. Early Gestation(107)
ManagementHighly IntensiveEnter in 2.0 to 2.5 BCSTeasers with marking harnesses inon June 1Check raddle marks daily for 20days. Record(d) Remove teasers on June 20Remove raddle marked ewes onJune 20. Don’t have to cull.Re-expose in Aug/Sep for Jan/Feblambing.
IV. Early Gestation(107 days)
A. ManagementHighly IntensiveDivide pastures into small plotsRotate so forage has 30 days to recover from each grazing boutStocking rates (cool season grasses)June 12 to 18 ewes/acreJuly 8 to 10 ewes/acreAugust 3 to 4 ewes/acreSeptember 3 to 7 ewes/acre
IV. Early Gestation(107 days)
A. ManagementHighly IntensiveVibrio booster on September 1FAMACHA score ewes every 21 days to October 1De-worm 3’s, 4’s, and 5’sADG = 0.07lb/ewe/d (7 to 10lb/ewe)Mineral, water, shadeQuality of forage unimportant as long as quantity is adequate
V. Late Gestation(30 days)
A. ManagementHighly IntensiveEnter in 3.0 BCSBegin to feed 1.0lbcorn/ewe/d 1 x/d on September 5Higher quality and quantity forage than EGContinue pasture rotation
V. Late Gestation(30 days)
A. ManagementHighly IntensiveIf pasture unavailable, feed following outside or inside barnOG hay (EV) = 3.3lbCorn = 1.2lbCDT vaccinationMove ewes to “up close” pens on September 20. ShearwooledewesLG ration in barnOG (EV) = 3.3lbCorn = 1.2lbMineral, water, shade3.5 to 4.0 BCS at lambing
VI. Lambing
A. ManagementHighly IntensiveLamb in “up close” pens/move to jugsWeigh lambs/record. Iodine navelMake sure lambs nurse/check every 2 hoursWater only 1st24 hours3 to 5lbgrass hay/ewe/d from 24 hours to 2 to 5 daysMove to nursery pen (dock, castrate, ear tag, may vaccinate for sore mouth)
VII. Lactation(60 days)
A. ManagementHighly IntensiveEnter in 3.5 to 4.0 BCSDe-worm all ewes as they leave jugsTrim hoovesLeave in 1.5 to 2.0 BCSMineral, water, shadeFeed for milk, not BCS
VII. Lactation(60 days)
Rations1. OG, full bloom = 5.3lbCorn = 1.5lbSBM= 0.5lbOG, early vegetative = 5.3lbCorn = 1.4lbAlfalfa hay (mid-bloom) = 5.5lbCorn = 1.5lb
VIII. Post-weaning(5 days)
Remove grain from ewe ration 7 days before weaningReduce hay during last 7 daysNo feed or mineral for 48 hours after lamb separationWithhold water 24 to 48 hoursMineral and water ad libitum after 48 hoursTurn to winter pasture
IX. Maintenance(116 days)
Enter in 1.5 to 2.0 BCSFAMACHA. De-worm 3’s, 4’s, and 5’sPalpate udders 4 weeks after weaningCull ewesFAMACHA again. De-worm 3’s, 4’s, and 5’sPasture pickings + mature hay ad libitum until April 15
IX. Maintenance(116 days)
Vibrio and EAE vaccination 30 days before breedingMineral, water, shadeLeave maintenance/enter Flushing in 1.5 to 2.0 BCS
Annual Ram Management Program(Fall Lambing)
I. Nutritional Flushing(14 days)
Enter in 2.5 to 3.0 BCSDe-worm teasers and fertile rams on April 7Trim hooves of teasers and rams on April 7Teasers in with ewes on April 15Manage like ewes on spring pastureMineral, water, shadeRenew teasers on May 1
II. Breeding(31 days)
Fertile rams with marking harnesses in on May 1One ram/group of ewes = single sire matingMultiple rams/group of ewes = multi-sire matingLeave with ewes until May 31Check harnesses/crayons dailyRecord raddle marks dailyChange crayon color on May 16
II. Breeding(31 days)
Ewes to ram ratioMature 35 to 50:1Yrlg20 to 35:1Lamb 15 to 20:1Remove rams on May 31Leave in 2.0 to 2.5 BCS
III. Maintenance(316 days)
Teasers with harnesses replacefertileson June 1Check raddle marks daily for open ewes from June 1 to June 20Remove teasers on June 20Re-acquaint rams and teasersDe-worm all rams on June 20
III. Maintenance(316 days)
Pen all rams in barn until October 1Feed 4lbgrass hay + 1 to 2lbcorn/dManage matures, yearlings and lambs separatelyTurn all rams to pasture on October 1Feed low quality grass hay until April 15Continue to feed ram lambs 1 to 2lbcorn/hd/dShearwooledbreeds next Mar/AprMaintain 2.0 to 2.5 BCS
Annual Lamb Management Program(Fall Lambing)
I. Parturition
Born in “up close” pensMove to jugsWeigh/record/iodine navelIn jugs for 24 hours up to 2 to 5 daysDock, ear tag, may vaccinate for sore mouthNo castrationMove to nursery pen
I. Pre-Weaning
Creep available by 7 days90% corn, 10% SBM, 1lbAureo-50/tonVaccinate forEnterotoxemiaWean on Dec. 15 – Move ewes awayLeave lambs on creep for 7 days with 0.5lbgrass hay/lamb/dMix creep and post-weaning diet 50:50 so lambs on post-weaning diet by 14 days
I. Post-Weaning
Post-Weaning Diet10% CSH64.75% ground/cracked corn15.00% SBM5.00% DDGS1.50% gnd. limestone1.00% white salt0.50% ammonium chloride2.00% corn oilGnd. Grass can replace CSH or long haycan be fed separatelyMarket lambs at 100 to 150lbby March 10





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