Level of nutrition and reproduction in cows

LEVEL OF NUTRITION AND  REPRODUCTION IN COWS

  • The cow has a dry period of about 2 months but in practice it may be longer.

Cumbu Napier grass 20 days

  • During this period, cow should build up the body reserves, lost in early lactation and will require nutrients to provide for the rapid growth of the foetus which occur during the later stage of pregnancy and for the regeneration of mammary tissue.
  • Low levels of protein and energy in the diets of cows and buffaloes are liable to affect the reproductive system in a number of ways, such as disturbing the oestrous cycle, prolonging postpartum anoestrous period and increasing number of services per conception. The mechanism of inhibitory action is on the hypothalamus affecting the release of Leutinising Hormone (LH) releasing factor from anterior pituitary.
  • In case, the energy requirement is met fully from time to time during  lactation, there may be further increase in milk production as well as better persistency from such cows.
  • High protein diets are reported to be beneficial for higher milk production and superior growth rate. It has been estimated that two third of increase in milk yield is due to adequate protein and one-third is a result of optimum energy in the rations.
Last modified: Wednesday, 4 April 2012, 5:18 AM