2results about How to "Improve conception rate" patented technology

This invention discloses a novel use of pyrroloquinoline quinone (PQQ) in improving conception rates after artificial insemination in beef cows, as well as compositions containing rumen-protected PQQ and their application methods, belonging to the field of animal nutrition and reproductive technology. Addressing the problem of low conception rates in beef cattle after artificial insemination due to early embryonic oxidative stress death, this invention proposes continuously adding an effective dose of rumen-protected PQQ to the cow's diet starting from the day of artificial insemination. This method significantly increases the conception rate of cows from approximately 40.00% in the control group to 80.00%. This invention is safe, effective, and easily applicable in large-scale farming.

The application discloses a method for regulating porcine estrus synchronization by using a new modified GnRH analogue, and belongs to the technical field of veterinary reproduction regulation. n The application adopts Fmoc-NH-PEG n -COOH as a bifunctional linker to perform site-specific coupling modification at a non-active safety site of a GnRH agonist / antagonist, and compound natural antioxidant / anti-apoptotic active ingredients to obtain a sustained-release preparation, and single administration achieves long-acting estrus inhibition for 20-150 days, and the inhibition is released by cooperating with late GnRH agonist injection to induce synchronous estrus ovulation of the whole group. The method can be adapted to 3-week, 4-week, 5-week and quarterly super-long cycle batch management, completely replaces allylgestrinone, significantly reduces labor cost, improves estrus synchronization rate, pregnancy rate and healthy piglet rate, significantly reduces ovarian cyst and follicular atresia rate, has no progesterone residue, has high biological safety, and is especially suitable for reproduction regulation of large-scale pig farms in a hot stress environment.