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Cow Fertility

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Cow Fertility How can we affect it? Objectives Identify three management areas Make a vaccination calendar Have a basic understanding of the body condition scoring ... – PowerPoint PPT presentation

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Title: Cow Fertility


1
Cow Fertility
  • How can we affect it?

2
Objectives
  • Identify three management areas
  • Make a vaccination calendar
  • Have a basic understanding of the body condition
    scoring system
  • Identify three main times to body condition score
    cows

3
What is fertility?
The capacity to initiate, sustain, and support
reproduction.
4
Three Management Areas
  • Herd health
  • Age at puberty
  • Nutrition

5
Herd Health
  • External parasites
  • Lice
  • Grubs
  • Horn flies
  • Face flies

6
Vaccination Calendar
  • Replacement heifers
  • Brucellosis- about 9 mo. Of age
  • Leptospirosis
  • IBR (Red Nose)-consult veterinarian
  • Clostridials-baby calves, booster at weaning
  • BVD- consult veterinarian
  • Consult with your veterinarian for other
    recommendations

7
Vaccination Calendar-Cont.
  • Prebreeding
  • Vibriosis
  • Annual booster vaccinations- preg check
  • Vibriosis
  • Trichomaniasis
  • Leptospirosis
  • Respiratory as recommended

8
Age at Puberty
  • Should reach puberty at 11-12 mo. of age
  • Need to cycle at least 2 times before breeding
  • Should be bred at 15 mo. of age
  • Target weight of 65 of mature weight

9
Nutrition
  • Reproduction is a luxury event.
  • Use body condition score to assess level of
    nutrition
  • Three major times to assess BCS
  • Weaning
  • 1 month post weaning
  • 80-100d precalving

10
Nutrition-Cont.
  • Cows should be BCS 5 at calving
  • Heifers should be BCS 6 at calving
  • BCS at calving affects colostrum levels
  • BCS at calving affects rebreeding
  • Cows must rebreed within 82 days to have a calf
    every year.

11
Factors Affecting Nutrition
  • Body condition score
  • Age of the animal
  • Stage of gestation
  • Lactation
  • Season

12
Other Factors Affecting Fertility
  • Age of cow
  • Calving difficulty

13
What Does This Mean To Us?
  • Cow fertility can be controlled with simple
    management procedures
  • Herd profitability can be increased by better cow
    fertility
  • Use veterinarian and extension educator to plan
    your management scheme
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