Method of enhancing reproductive performance in sows

Details Method of enhancing reproductive performance in sows Method of enhancing reproductive performance in sows

A - Human Necessities

23

K

A23K 1/16 (2006.01) A23K 1/175 (2006.01) A23K 1/18 (2006.01)

Patent

CA 2444603

The present invention relates to supplementing the diets to sows during the periods of gestation, lactation, and breeding by feeding L-carnitine and chromium. The supplementation enhances pork productivity by increasing the number of pigs born alive in the subsequent reproductive cycle. Sow diets of this invention include L-carnitine and L-carnitine salts and trivalent chromium salts, such as chromium picolinate and chromium nicotinate. L- carnitine is generally added to the swine feed formulation in the amount of from about 20 to about 1500 ppm, and the trivalent chromium salt is generally added to the swine feed formulation in the amount of from about 20 ppb to about 1000 ppb. The invention also relates to supplemented sow diets and feed supplement formulation.

La présente invention concerne des additifs à l'alimentation des truies pendant la période de gestation, de lactation et de mise à la reproduction, ces additifs étant la L-carnitine et le chrome. Les additifs améliorent la productivité porcine car ils permettent d'augmenter le nombre de porcelets nés vivants pendant le cycle reproductif suivant. Selon l'invention, l'alimentation des truies comprend la L-carnitine et des sels de L-carnitine ainsi que des sels de chrome trivalents tels que le picolinate de chrome et le nicotinate de chrome. La L-carnitine est généralement ajoutée à la formulation d'alimentation porcine dans des quantités généralement comprises entre environ 20 et environ 1500 ppm, et le sel de chrome trivalent est généralement ajouté à la formulation d'alimentation porcine dans des quantités entre environ 20 ppb et environ 1000 ppb. L'invention concerne aussi une alimentation supplémentaire pour truies et une formulation d'additifs alimentaires.

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