Co-Ral (1950s)

[Music] you [Music] these are scenes familiar to all cattleman glimpses of a business he knows well and the cattle business is big business one measured in the billions of dollars each year from the ranges to the feeder lots to the stockyards Americans have come to expect and demand the best in high-grade beef [Music] and yet unfortunately not offered behave like this all too often they behave like this Leslie sometimes almost fighting they run off valuable power to avoid attacking insects they instinctively seek shelter in shape or they stand in ponds refusing to venture out to eat yes cattlemen are all too familiar with these signs they lead to the lumps on the backs of animal indicating growth these parasites ruin hides and some of the finest meat the damage done by cattle grubs alone runs into the millions of dollars each year in destroyed meat and downgraded beef it's a really shocking sight in the packing house [Music] damage to beef and hides alone can amount to twelve to fifteen dollars per head for years stockman have fought to control these parasites however until quite recently efforts proved unsatisfactory the old method was to spray the back of infested animals after the grubs had cut their breathing holes this killed the grubs but by then the damage had been done it had begun months before when the life cycle of the he'll fly began for grub's start out as he'll fight these slides emerge from their hard shells during early summer they deposit their eggs along the hairs of animals generally on the legs or underbelly [Music] from these eggs the tiny grubs emerge they penetrate the skin and start moving through the body tissue within about five months they've made their way along the connective tissues and are congregated in the animals color others will congregate in the spinal column depending on the species of drug but whether in the spine or the gullet the grubs grow remaining for two or perhaps three months now they make their final migration traveling to the animals back at this stage in their development the grubs require oxygen so they cut freezing holes through the hide they continue to grow and develop inside forming the lump so familiar to cattlemen unless the grub is killed at this time it will eventually emerge fall to the earth and burrow underground it forms a shell and comes out in the spring to become another he'll fly and the whole process starts again so by the old methods drugs were killed when the spray entered the breathing holes in the animals back but this was too late the damage had been done but now a new agricultural chemical called coral has been developed which kills Grubbs before they can call stanitch corral is sprayed on cattle and is absorbed through the skin if then moves through the body tissues and destroys the migrating grubs without affecting the animals the dead grubs are broken down within the body and are absorbed without harm before they can cause damage to the beef or hi after the grubs are gone the chemical itself is eliminated in order to work systemically that is to kill grubs internally instructions should be carefully followed proper mixing is the prosthetic the recommended proportion is 16 pounds of corral to each 100 gallons of water no special protective clothing need be worn by the operator while mixing or spray corral must be applied in such a manner that the skin of the animal not just the hair becomes wet [Music] too little pressure or too wide a cone like this will get only the surface hair if the hair and skin underneath is less dry like this poor control of grubs results while high pressure spray equipment is recommended simple knapsack sprayers are suitable on animals with short hair currying the animal before spraying will help to get the chemical to the skin [Music] weed sprayers with nylon roller pumps are suitable for spraying animals with short hair the highest pressure obtainable should be used and the operator should work from three to five feet [Music] in areas farther north coats of cattle become much heavier in the fall to ensure penetration of thick coats like these spraying may have to be done from as close as six inches unless high pressures are used high pressure systems allow the operator to work at greater distances and still get the desired penetration with this type of equipment the operator can stand six to eight feet from the animals and still be certain he is getting a thorough wedding of the skin [Music] one of the most efficient methods is the recirculating power sprayer animals are driven into a metal shoot where high volume sprays from every angle soak the hide corral is equally effective in killing another pest the screwworm this pest is often fatal to the animal again we should understand how infestation occurs screw worms are the larvae of the blowfly the flies are attracted by cuts or wounds on the animals and here they lay their eggs within 12 to 24 hours the eggs hatch and the larvae begin feeding on the flesh with in the world [Music] they mature in approximately one week now the full-grown maggots crawl out of the wound fall to the ground and Berlin [Music] in a few days the maggot are transformed into flies and emerged they mate and begin the egg-laying cycle once more [Music] treating for grub's will of course kill any screw worms which may be present however to treat specifically for screw worms it is necessary to spray it just enough to wet the code without runoff infested areas of course must be given particular attention to ensure a complete kill one application will prevent reinvest station and allow the wound to heal normally new wounds will be protected from infestation for a period of two to three weeks calves under three months should not be given an overall spray but their wounds should be spot treated for screw worm carell assured a herd free of grubs and screw work and as a bonus treated herds are automatically protected from other pets life horn flies ticks chorale will control them all as with any chemical certain two cautions should be observed animal should be at least three months old before being given an overall spray only light sprays are recommended until they are six months old [Music] the time to spray will vary in different localities but regardless of the area treatment should be started after the heel flies have laid their eggs and disappeared spraying should always be completed at least six weeks before grubs would normally appear as lump in the back the use of corral has proven extremely effective everywhere when properly applied virtually 100% control of cattle grubs is obtained results against other parasites have been equally successful for the rancher for all producers this means healthier animals fewer fatalities with fewer heel flies on the summer range greater gains will be made curds easier to manage labor costs reduced earlier shipping more profits for the feeder it means more contented animals who will better utilize their feet gains will be more rapid beef quality will be higher the feeder can ship when the price is right [Music] for the fire prime beef usable hides more profit thus a significant breakthrough in the age-old battle to control insects that prey on cat cattlemen have reached another milestone in their efforts to bring more and better beef to a growing nation you