Scours cause more financial loss to cow/calf producers than any other disease-re¬lated problems. Calves in a confinedenvironment seem to be more susceptibleto scours than calves out on the range.

Agriculture Center Building, 5630 S. Broadway ot Spruce Point

P.O. Box 4240, Eureka, California 95501 Phone 443-0896

SCOURS - THE CALF KILLER

/o/o/o/o/o/o/o/o/o/o/o/o/Q/o/o/o/o/ii/o/o/o/o/o/o/o/o/o/o/o/Q/o/o/o/o/o/o

^ SCOURS - THE CALF KILLER ^°

WORKING STOCK DOG WORKSHOP ^"

VACCINATION TIME °"

SPRING CLASSES AT C/R°

BE AWARE OF WOOL CONTAMINATION °°

SHEEP SHEARING SCHOOL °"

HOPLAND SHEEP DAY j°

COPING WITH FOOT ROT °°

CALENDAR OF EVENTS 7,7, RENEWAL NOTICE 7,Vo /oo/ct/Q/Q/ofa/o/oiaia/o/otataia/<s/G/ata/ofa/a/ata/o/otoiafo/ot<3t<j/ot<rf<j/<tt/O/o/O/O/O/O/O/O/O/Q/O/O/O/O/O/O/O/O/O/Q/O/O/O/O/O/O/O/O/O/O/O/O/O/O/O/O

Scours are more deadly to younger calvesthan older calves. The younger the calfthe greater the chance of death. Ifscours are a problem on your ranch, con¬sult your local veterinarian for a treat¬ment program. Scours can be a seriousproblem especially if the calves go un¬treated.

mRKIHG STOCK VOG liJORKSHOP

APRIL 1983

Calf scours is not a disease - it is a

clinical sign of a disease which can havemany causes. Scours are characterized bydiarrhea, and in all diarrheas, the intes¬tine either fails to absorb fluids and/orintestinal secretions are increased result¬

ing in loss of essential fluids from thebody.

A calf is approximately 70% water at birth.If the calf begins to lose fluids - throughdiarrhea - he dehydrates rapidly. Thisdehydration and loss of certain body chemi¬cals (electrolytes) produces a change inbody chemistry and severe depression in thecalf. Even though infectious agents maycause the primary intestinal damage, deathfrom scours is usually due to electrolyteloss, changes in body chemistry and de¬hydration, rather than invasion by an in¬fectious agent. The infectious agent isimportant, however, from the standpoint ofprevention.

The Agriculture Department at College ofthe Redwoods is sponsoring a "WorkingDog" workshop on Saturday, May 7, 1983.The workshop starts at 9:00 a.m. at thesheep bam on campus and will go toabout 4:00 p.m.

Mr. Silas Francis from Cloverdale willbe the instructor. Mr. Francis owns,shows, and breds stock dogs. He hadthe winning dog in the Sheep Dog Trialsat Redwood Acres Fair in 1981.

The workshop will include demonstrationsand instruction on dog selection, obedi¬ence training, starting the young dogand advanced training. Participants inthe workshop are encouraged to bringtheir working dogs for advice and assist¬ance in training them.

For more information on the workshop,please call 443-8411, extension 600.

The University of Californio Cooperative Extension in compliance with the Civil Rights Act of 1964, Title IX of theEducation Amendments of 1972, and the Rehabilitation Act of 1973 does not discriminate on the basis of roce, creed,religion, color, notional origin, sex, or mental or physical handicap in any of its programs or activities. Inquiriesregarding this policy may be directed to: Worren E. Schoonover, 317 University Hall, University of California, Berkeley,

California 94720, (415) 642-0903.Work in Agriculture and Home Economics, U. S, Department of Agriculture,

University of California and Humboldt and Del Norte counties, co—operating

l/ACCIMATm TIME

It's time to have your horses' annualvaccination for sleeping sickness!

The season for Western Equine Encephalo¬myelitis will soon be hereo This diseaseis caused by a virus and is usually foundwest of the Mississippi River,, Ordinarily,mosquitoes spread the disease, but otherinsects such as biting flies may also beinvolved,. The incubation period variesfrom 4 to 14 days.

The often fatal disease may initiallycause hyperactivity in an animal, follow¬ed by abnormal drowsiness, tremors, in¬coordination, and loss of weight. Thehorse may also chew excessively, havedifficulty swallowing, and show impairedvision, reduced reflexes and an irregulargait,

SPRING CLASSES AT C/R

The Agriculture Department at College ofthe Redwoods has a couple of classesthat might be of interest to ranchers.They arei

* Beef Science - taught by Bruce Berg¬man. The class is on Wednesdays12-2 p.m. and the lab on Mondays2-5 p.m.

* Feeds and Feeding - taught by BruceBergman. This class is on Monday,12-2 p.m. and a lab on Wednesdaysfrom 2-5 p.m.

Classes begin on March 28. For more in¬formation on the classes, please call443-8411, extension 600.

BE AO/ARE OF (iJOOL CONTAMINATION

Plastic twine is a serious contaminateof wool, and woolen mills are very con¬cerned. Wool buyers have been warnedto reject wool shipments that have anyplastic or sisal material in any of thefleeces.

Plastic twine never breaks down in theenvironment. Many times small piecesof the black or yellow plastic twineattaches to sheep's wool when they lie

down on bedding grounds. There havebeen some instances when sheepmen havetied their wool fleeces with plastictwine. This raises havoc in the woolenmills because the physical propertiesof plastic are similar to wool fibers.As a result, the plastic twine can't beeasily separated during wool processing,and it causes defective woolen garments.

As shearing time approaches make sureyou have paper twine on hand to tie thefleeces. If you find pieces of plastictwine in the fleeces, be sure to removethem before tying the fleeces. Follow¬ing these practices will make the peopleat the woolen mills a lot happier,

SHEEP SHBARING SCHOOL

A Sheep Shearing school will be heldMay 9-13 at Capetown Ranch,

Alan Barker, a native of New Zealand,will be the instructor for the school,Mr. Barker has been a professionalsheep shearer for 26 years and hasconducted shearing schools in the UnitedStates for the last 12 years. Mr. Barkeris one of seven professional shearinginstructors for the New Zealand WoolBoard.

For more information on the ShearingSchool, please call our office at443-0896.

HOPLANV SHEEP VAV

The University of California HoplandField Station is hosting a Sheep FieldDay on April 16. The program startsat lOtOO AM at the Hopland Field Sta¬tion.

Some of the speakers include: Dr.Walter Howard on the 1080 Hoax, Dr.Eric Bradford on Selecting and Breed¬ing for Higher Weaning Lambs, andChuck Phillips on a 260% Lambcrop—It Is Possible. There will be a

report from Sara Rosenthal on bio¬logical control of Italian Thistle.

HAPPY easier!

COPING WITH rOOT ROT

There is no easy cure for foot rot insheep, but there are some practices youcan follow to reduce the problem.

Foot rot is caused by one or more strainsof bacteria that destroy the connectivetissues between the hoof wall and thesole of the foot, causing them to sepa¬rate. Other bacteria then invade thefoot and cause inflamation and lameness—which are the major symptoms of foot rot.Bacteria enter the foot through cuts, ir¬ritated areas, or breaks in the hoof wall.These bacteria can live for months in theflesh of the hoof, but the bacteria onlysurvive 2 weeks or less in soil. This is

why its good to rotate pastures.

Foot rot is contagious and spreads bycontaminating the grounds, pastures,corrals, sheds, barns, floors, and truckbeds. Noninfected sheep being grazed orhandled on contaminated premises readilypick up the infection.

Foot rot can be eliminated from an in¬fected flock only if treatment is con¬tinued until every infected sheep hasbeen cured or sold. This requires:

* repeated examination, trimming, anduse of disinfectants

* strict isolation of infected and

suspected animals* disposal of carriers.

Trim each hoof as necessary to remove over¬grown parts and to prevent excessive fu¬ture growth. After trimming examine eachfoot carefully. Look for diseased or deadtissue, for infected areas, and for under-run horn. Tap on the sole with the backof the knife. If you find any abnormal orunusual condition, pare the hoof to exposethe site of trouble.

and manure. Copper sulfate will leave agreen stain on the wool. Formalin won'tdilute out, stain wool, or corrode metalsbut it does have objectionable fumes.

The U.S.D.A. recommends a 10% solutionwhen using formalin (2 gallons formalin t18 gallons of water). Research at theHopland Field Station has found a 5% solution is satisfactory. A 20% solution ofcopper sulfate is recommended (32 lbs ofcopper sulfate with 20 gallons of water).If the foot bath solution is changed regularly, a 10% solution can be used. Zincsulfate is recommended as a 10% solution.Zinc sulfate is about 1/2 the price ofcopper sulfate. If you have trouble dis¬solving the zinc or copper sulfate inwater, use hot water. If your water ishard, add vinegar.

CALENVAR Of Bl/ENTS

March 31 - John Lenz Retirement Dinner,7:00 PM - OH's Townhouse

April 8 - Humboldt County Wool Grower'Spring Meeting, 10:00 AMScotia Inn

April 16 - Hopland Sheep Field Day,10:00 AM - University ofCalifornia, Hopland FieldStation

Apr. 22-23 - Livestock Symposium, Fresno

Apr. 25-28 - Foothills for Food & ForestsS3miposium, Corvallis, Oregon

May 5-6 - Beef Improvement FederationMeeting, Capitol PlazaHoliday Inn, Sacramento

May 7 - Sheep Shearing SchoolCapetown Ranch, Ferndale

There are three disinfectants that are com¬

monly used in foot baths; copper sulfate,zinc sulfate, and formalin. These disin¬fectants promote hardening of the hoofand healing. Copper sulfate and zinc sul¬fate have no objectionable fumes, but theywill corrode metals and nails, and theywill dilute out when contaminated by mud

Gary~MarkegaraFarm Advisor

IMPORTANT If you want to stay on the mailing list for the REDWOOD CORRAL,please fill in the form below and return to:

Gary MarkegardFarm Advisor5630 South BroadwayEureka, OA 95501

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