Methods for increasing the reproductive performance of a sow, for increasing the number of live births for a sow, for increasing the total number of births for a sow, for decreasing the weaning to estrus range for a sow, for decreasing weaning until re-breeding for a sow, to increase the uniformity of offspring birth weight of a sow, to decrease loss by pre-weaning death of a sow's offspring, to increase the calving rate of a sow, to increase fertility of a pig and to increase the reproductive performance of a pig breeding population; and, pig feed composition

摘要

"METHODS FOR INCREASING SOW PERFORMANCE PERFORMANCE TO INCREASE THE NUMBER OF LIVE BIRTHS FOR A SOW, TO INCREASE THE TOTAL NUMBER OF BIRTHS SUCKED TO REDUCE THE WEEKING INTERVAL TO A SOW WEEK UP TO REWARDING A SOW, TO INCREASE THE UNIFORM OF THE NUTRIAN BIRTH WEIGHT, TO REDUCE THE PRELIMINARY LOSS OF A NULL, TO INCREASE THE NURSING RATE FERTILITY OF A PIG AND TO INCREASE THE REPRODUCTIVE PERFORMANCE OF A PIG BREEDING POPULATION, AND, PIG FEED COMPOSITION ". The present invention relates to compositions and methods for enhancing the reproductive performance of pig breeding populations. The porcine feed compositions of the present invention are animal feed mixtures including marine animal products such as fish oil or fishmeal products. The methods include administering to the sow a biologically effective amount of the swine feed composition comprising marine animal products wherein marine animal products contain omega-3-fatty acids or their esters which serve as a source of metabolites in the sow. to improve the reproductive performance of the sow. The methods may also be used to increase the fertility of a pig, and may be used to increase the reproductive performance of both male and female animals by feeding both pig and sow with the pig feed composition.