METHODS FOR USE OF SEX SORTED SEMEN TO IMPROVE GENETIC MANAGEMENT IN SWINE

• US 20180161137A1
• Filed: 12/22/2017
• Published: 06/14/2018
• Est. Priority Date: 06/06/2012
• Status: Active Grant

• Current Assignee: Inguran LLC
• Original Assignee: Inguran LLC
• Inventors: van der Steen, Hein, Bevier, Gregg
• Granted Patent: US 10,219,883 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 1/044 for absorption imaging
• CPC Class Codes: A61B 1/3132 for laparoscopy
• CPC Class Codes: A61B 6/12 Arrangements for detecting or locating foreign bodies
• CPC Class Codes: A61B 6/485 involving fluorescence X-ray imaging
• CPC Class Codes: A61D 19/027 Devices for injecting semen into animals, e.g. syringes, guns, probes
• CPC Class Codes: A61K 35/52 Sperm; Prostate; Seminal fluid; Leydig cells of testes

Abstract

The invention relates to methods of increasing genetic merit of swine by establishing a plurality of mating subtypes for a line of swine, and determining a percentage of progeny that are male for each of the mating subtypes, or a percentage of progeny that are female for each of the mating subtypes, that would result, relative to a control, in an increase in genetic merit in the line; the invention further relates to sorting a sperm cell sample from a male swine in one of the mating subtypes into one or more subpopulations of sperm cells, wherein a majority of sperm cells in a subpopulation of sperm cells bear X chromosomes or Y chromosomes, and inseminating one or more female swine in the one of the mating subtypes with the subpopulation of sperm cells to achieve the percentage of progeny that are male, or the percentage of progeny that are female, determined to increase genetic merit relative to the control.

Claims

1. A method of increasing genetic merit of swine comprising the steps of:

providing a population of swine in a sire line;

establishing a subpopulation of males and females from the population of swine available for breeding and parenting progeny;

inseminating one or more females in the subpopulation with a sex sorted sperm cell sample from a male in the subpopulation; and

producing progeny of the subpopulation, wherein approximately 10 to 35% of the progeny are male.

2. The method of claim 1, wherein the subpopulation of males and females are members of a genetic nucleus, a daughter nucleus or a multiplier.

3. The method of claim 1, wherein subpopulation of males and females are members of a genetic nucleus.

4. The method of claim 1, wherein approximately 15 to 30% of the progeny are male.

5. A method of increasing genetic merit of swine comprising the steps of:

providing a population of swine in a dam line;

establishing a subpopulation of males and females from the population of swine available for breeding and parenting progeny;

inseminating one or more females in the subpopulation with a sex sorted sperm cell sample from a male in the subpopulation; and

producing progeny of the subpopulation, wherein approximately 5 to 30% of the progeny are male.

6. The method of claim 5, wherein the subpopulation of males and females are members of a genetic nucleus, a daughter nucleus or a multiplier.

7. The method of claim 5, wherein subpopulation of males and females are members of a genetic nucleus.

8. The method of claim 5, wherein approximately 10 to 25% of the progeny are male.