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Opportunities Farm Update, Erik Loe, Robbi Pritchard, Matt Loewe
Opportunities Farm Update, Erik Loe, Robbi Pritchard, Matt Loewe
South Dakota Beef Report, 2006
Opportunities Farm allows comparisons of different feedlot facilities located on one site for use in teaching and outreach. The three facilities are: 1) bed-pack confinement, 2) dirt-mound open pens, and 3) partially-covered pens. The first cattle were placed in Opportunities Farm in February 2004. There have been 3,023 head of steers and heifers marketed from Opportunities Farm through June 2006.
Effect Of An Injection Of Gnrh At Time Of Insemination Following Detection In Standing Estrus On Beef Cow And Heifer Pregnancy Rates, G. A. Perry
South Dakota Beef Report, 2006
An injection of GnRH at the initiation of standing estrus has been reported to increase pregnancy and circulating concentrations of progesterone in repeat breeder dairy cows, cows that have normal estrous cycles but will not conceive. The objective of this study was to determine the effect of administering an injection of GnRH at time of insemination on subsequent concentrations of progesterone and conception rates in beef cattle that have exhibited standing estrus. Eighty-two beef heifers at 2 locations were synchronized with the Select Synch-CIDR protocol (n = 42) or the 14-19 MGA protocol (n = 40) and AI was performed …