Table 2

Influence of Inadequate and Excessive Dietary Nutrient Intake on Reproduction in Beef Cattle (Bearden and Fuquay, 1992)

Nutrient Consumption

Reproductive Consequence

  • Excessive Energy Intake
  • Low conception, abortion, dystocia, retained placentae, reduced libido
  • Inadequate Energy Intake
  • Delayed puberty, suppressed estrus and ovulation, suppressed libido and spermatozoa production
  • Excessive protein intake
  • Low conception rate
  • Inadequate protein intake
  • Suppressed estrus, low conception, fetal resorption, premature parturition, weak offspring
  • Vitamin A deficiency
  • Impaired spermatogenesis, anestrus, low conception, abortion, weak offspring, retained placentae
  • Phosphorus deficiency
  • Anestrus, irregular estrus
  • Selenium deficiency
  • Retained placenta
  • Copper deficiency
  • Depressed reproduction, impaired immune system, impaired ovarian function
  • Zinc deficiency
  • Reduced spermatogenesis