Page 14 - MWC 10-27-2022s
P. 14

MINIMIZING STORAGE                                                                        The Midwest Cattleman · October 27, 2022 · P14
      continued from page 7                                                 FEEDING FROSTED

      the hay in that bale.                 •Store bales end-to-end, in     continued from page 11            plants can contain or produce
                                                                                                              prussic acid and can possess
         Research from past studies  rows, facing in a northwest to  the lab to confirm what guide-           toxic levels at maturity. Prus-
      shows outdoor storage losses  southeastern direction when- lines they suggest and that                  sic acid poisoning can be as-
      range  from 5-35%,  this can  ever possible.                          they are still doing the test.    sociated with new regrowth
      be reduced by 2/3 with indoor         •Space adjacent lines at          Plant age affects toxic-        following a drought-ending
      storage  and be reduced by  least 10 feet apart.                      ity.  Young, rapidly growing      rain. Rain after drought plus
      50% with good plastic cover-          •Stacking bales usually  plants of species that con-              young stages of plant maturi-
      ing outdoors.                      increase losses.                   tain cyanogenic glucosides        ty can combine to cause toxic

      Recommendations for                   •Locate bale rows away  will have the highest levels              levels of prussic acid in forag-
      Storage Techniques                 from fences and fields and  of prussic acid. Pure stands of          es.
         •Make a dense bale: It          it is recommended to cover  Indiangrass (a native prairie               Fertility can affect poi-
      will shed more precipita-          hay if keeping more than one  grass) can have lethal levels          soning risk. Plants growing
      tion, sag less, and have less                                         of cyanide if they are grazed     under high nitrogen levels or
      surface area to absorb mois- Drovers                                  when the plants are less than     in soils deficient in phospho-
      ture. By using net wrap, you                                          8 inches tall.                    rus or potassium will be more
      will reduce bale                                                        Species with prussic            likely to  have high prussic
      sag and main-                                                         acid poisoning potential.         acid poisoning potential.
      tain bale shape.                                                      Forage species that  can con-        Fresh forage has more
      In addition, net                                                      tain prussic acid after frost     risk. After frost damage, cy-
      wrap makes a                                                          are listed below in decreasing    anide levels will likely be
      tight,      smooth                                                    order of toxicity risk:           higher in fresh forage as com-
      surface that will                                                       •Grain sorghum = high to        pared with silage or hay that
      resist    weather-                                                    very high toxic potential         is wilted in the field. This is
      ing, insects, and                                                       •Indiangrass = high toxic       because cyanide is a gas and
      rodents.                                                              potential                         dissipates as the forage is
         •Store     bales                                                     •Sorghum-sudangrass hy-         wilted and dried for making
      on a well-drained                                                     brids (“sudax”) and forage        silage or dry hay.
      location with a                                                       sorghums = intermediate to        Prussic Acid Toxicity
      4–6-inch coarse                                                       high potential                    Symptoms
      rock base that                                       Photo-Troy Walz    •Sudangrass hybrids = in-          Animals can die within
      will      minimize Baled forage constitutes the highest percentage of winter   termediate potential     minutes if they consume for-
      bottom spoilage.     feed cost we have wrapped up in a cow.             •Sudangrass varieties =         age with high concentrations
                                                                            low to intermediate in cya-       of prussic acid. Prussic acid
                             Show-Me-Select                                 nide poisoning potential          interferes with oxygen trans-
                                                                              •Piper sudangrass = low
                                 Replacement                                prussic acid poisoning poten-     fer in the blood stream of the
                                                                                                              animal, causing it to die of
                                    Heifer Sale                               •Pearl millet and foxtail       asphyxiation. Before death,
                                                                                                              symptoms include excess sal-
        150 Crossbred & Purebred Spring-Calving Heifers                     millet = rarely cause toxicity    ivation, difficult breathing,
                                                                              Species not usually plant-
               Friday, November 18, 2022 at 7 PM                            ed for agronomic use can also     staggering, convulsions, and
                       Joplin Regional Stockyards                           develop toxic levels of prussic      Ruminants are more sus-
                                                                            acid, including the following:
                        I-44 East of Carthage, MO at Exit 22                  •Johnsongrass                   ceptible to prussic acid poi-

        Video preview and sale may be viewed at      •Shattercane                    soning than horses or swine
        On-line bidding and approval must be arranged in advance along with bank approval.   •Chokecherry     because cud chewing and

            To create an account go to www.joplinstockyards  click on Live Auction then register and fill out     rumen bacteria help release
             banking information. At least 4 days prior to sale. Any questions and/or approval call 417-548-2333    •Black cherry
             and ask for Dustin, Misti, or Clay.                              •Elderberry                     the cyanide from plant tissue.

        •NOTICE: New JRS in-person buyers should bring   •About 35% are black, 40% are black whiteface,   It is always a good idea to
        a letter of  preapproval from their bank when   25% are red                                           Grazing Precautions
        registering prior to the sale     •Many are synchronized and AI bred.  A few Tier   check areas where wild cher-  Against Nitrate & Prussic
        • Breeds & crosses include: Angus, Gelbvieh, Red   II and Show-Me-Plus heifers are in the offering.      ry trees grow after a storm   Acid Poisoning
        Angus, SimAngus, & Hereford. Primarily   See catalog for details.   and pick up and discard any
        crossbreds with a few purebreds.                                                                         The following guidelines
                                Program Requirements:                       fallen limbs to prevent an-       will help you avoid danger to
        ◊   Heifers have met minimum standards for reproductive soundness, pelvic size, body         imals from grazing on the   your livestock this fall when
            condition and weight and are free of blemishes.                 leaves and twigs.                 feeding species with nitrates
        ◊   Heifers bred to bulls meeting strict calving ease or birth weight EPD requirements.     Frost affects toxicity.
        ◊   A strict immunization program has been followed including official Brucellosis calfhood           or prussic acid poisoning po-
            vaccination. Heifers are tested and found negative for PI BVD.  Cyanogenic glucosides are         tential:
        ◊   Heifers will calve from February to April 30 and were preg checked within 30 days of the sale.     converted  quickly  to  prussic   •Do not graze on nights
                                 Consignors Include                         acid (i.e., hydrogen cyanide) in   when frost is likely. High lev-
        David & Danise Cummings, Sarcoxie  Mast Farms, Lamar                freeze-damaged plant tissues.     els of toxic prussic acid are
        Hunter Lane Cattle Co., Pierce City  Nolan Kleiboeker Farm LLC, Wentworth
        Broken S Land & Cattle LLC, Aurora Kunkel Farms Red Angus, Neosho   Prussic acid poisoning po-        produced within hours after
        Robert Miller, Aurora                                               tential is most common after
        Weber Cattle, Lamar                                                                                   a frost, even if it was a light
        Dichotomy Cattle Co., Rocky Comfort                                 the  first  autumn  frost.  New   frost.
        John Wheeler, Marionville                                           growth from frosted plants is
        Kathy Wheeler, Marionville                                                                               •Do not graze after a kill-
                                                                            palatable but can be danger-      ing frost until plants are dry,
                             FOR MORE INFORMATION:
  ously high in prussic acid.  which usually takes 5 to 7
       Patrick Davis  417-276-3313 • Andy McCorkill  417-345-7551  Drought stress can af-  days.
        Sponsored by: Missouri “Show-Me-Select” Replacement Heifers, Inc., Division of Animal Sciences, Southwest Missouri Beef Cattle   fect prussic acid poison-  •After a  non-killing frost,
        Improvement Association in cooperation with University of Missouri Extension, College of Veterinary Medicine, Missouri Cattlemen's
        Association and Missouri Department of Agriculture.                 ing risk.  Drought-stunted        do not allow animals to graze
   9   10   11   12   13   14   15   16   17   18   19