1 / 32

feedlot management and nutrition

What can go wrong in the feedlot. ACIDOSISBLOATAIPPERITONITISFAST PNEUMONIABLACKLEG. . Feedlot: Energy. Most of what can go wrong in the feedlot (previous slides) has to do with energy managementEnergy is usually what limits gain in finishing dietWant to maximize energy and not get digestive problems.

albert
Download Presentation

feedlot management and nutrition

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Feedlot management and Nutrition Objective: when cattle reach the feedlot need to achieve the most rapid gain possible High capital investment – time is money so must maximize gain

    4. Feedlot: Energy Most of what can go wrong in the feedlot (previous slides) has to do with energy management Energy is usually what limits gain in finishing diet Want to maximize energy and not get digestive problems

    5. Feedlot: Energy – type of forage/roughage Set a minimum energy level (.62 Mcal of NEm and .92 Mcal of NEg per lb) Set a minimum level of roughage (8 to 12%) Set a minimum level of NDF (>15%) Curtis for example was 18-19%)

    6. Feedlot: Energy – type of forage/roughage Evaluate fiber from byproducts and from barley Just having fiber isn’t enough – must have effective fiber ***Find what works and does not produce acidosis – get the cattle on a “tight rope”

    7. Feedlot: Energy – type of forage/roughage Forage quality is not an issue; very little fiber digestion on finishing diets Feeder quality alfalfa rather than premium quality Why not straw?? Silages and haylages are very popular at feedlots What about effective fiber?

    8. Feedlot: Energy ingredients Abundant choices in the PNW – want to manage for: Fermentability (grain type and processing) Moisture content (would like to have 45 to 50% DM) Fat content (5 to 6%) Management of energy ingredients is essential for staying out of “digestives” problems

    9. Feedlot: Acidosis and other “digestives” Acute Laminitis, founder Hopelessly off-feed Sell immediately Chronic or subacute A little of feed, poor doers Long term effect Rumenitis: more problems as we have longer fed cattle – calf-feds, Holsteins, Japanese Probably bigger problem in the PNW with barley, wheat and potato feeding Best symptom is liver abscesses!

    11. ELANCO ANIMAL HEALTH LIVER ABSCESS SLAUGHTER CHECK 1999 Slaughter Checks 17,303 total lots = 2,0 million head 1,100,000 steers 700,000 heifers 60,000 Holsteins 160,000 mixed sex lots

    12. A+ Liver Abscesses, 1990 to 1999

    13. Total Abscesses by Month, 1990 - 1999Tylan Fed Steers, All Districts

    14. Total Liver Abscesses, 1999

    15. EFFECT OF RUMENSIN PLUS TYLAN ON LIVER ABSCESS INCIDENCE

    16. Feedlot: Management of disorders Step-up diets Usually three steps then the final ration Manage DM intake as well as level of grain Pay attention! Manage feed intake and bunk management Fermentability of carbohydrate feeds Limit intake programs Program feeding

    18. Anabolic Implants Over 90% of feedlot cattle receive some type of anabolic implant during the finishing phase Increase average daily gain, feed intakes and improve feed efficiency Currently 22 implant products on the market Used for calves, stocker cattle, and finishing cattle Reduce beef production costs by 7%

    19. How to Implant

    20. Hormones approved for use in growth promoting implants 3 Natural Hormones:EstradiolProgesteroneTestosterone 2 Synthetic hormones:ZeranolTrenbolone acetate (TBA)

    21. Mode of Action Estrogenic (Estradiol and Zeranol implants):enhance muscle growth through increased production of growth hormone Androgenic (TBA and testosterone implants):enhance muscle growth by inhibiting the release of hormones that cause muscle degradation Combination (Estrogenic and Androgenic implants)additive effects

    22. Implant Products Available

    25. Effect of implants on Heifer Pregnancy Rates

    26. Stocker Cattle

    27. Stocker Cattle

    28. Stocker Cattle

    29. Summary-Growing Cattle Suckling calves: Ralgro or Synovex-CSteers +$17/headHeifers +$18/headReplacements--reduces pregnancy ratesCan implant once at 2 mo of age or at weaning without dramatic effect Stocker: RalgroSteers +$ 12.50/headHeifers +$11.50/head Influenced by forage availability, genetic potential, creep feeding

    30. Feedlot Steers

    31. Feedlot Steers

    32. Implant Types: Steers

    33. Implant Types: Steers

More Related