The use of the serum progesterone strip test as a clinical tool for assessing reproductive status in replacement gilts.

Identifying the reproductive status of replacement gilts at the appropriate age can improve mating efficiency and reduce non-productive days. This study aimed to evaluate the reproductive status of gilts and assess the accuracy of a serum progesterone strip test. A total of 112 Landrace × Yorkshire gilts, aged 196-238 days, were enrolled.

Legal challenges to the 340B drug pricing program: administration, regulation, and reform.

The 340B Drug Pricing Program ("340B Program") was created to help safety net hospitals and clinics "stretch scarce federal resources" by discounting the price of their outpatient drug purchases. The spread between the discounted price and the sales price of the drug is retained by the hospitals and clinics, subsidizing operational costs and funding services that would not otherwise be possible to provide. The 340B Program has grown dramatically since its inception, eliciting significant criticism and calls for reform.

Supplementation of boar semen extender with 5 μg of buserelin improves litter size and birth weight in gilts raised under tropical field conditions.

Administering exogenous GnRH at the onset of standing estrus induces ovulation within ∼37.5 ± 3.3 h by stimulating LH secretion, narrowing the optimal insemination window.

The effect of ovulation synchronization with OvuGel on ovarian follicles and fertility responses to a single fixed time insemination in different parities and seasons.

Increasing use of semen from superior sires can accelerate genetic improvement when using a single fixed-time AI (SFTAI) to reduce the number of sperm required to produce a litter. The objectives of this study were to: 1) Assess whether follicle development, ovulation, and insemination was altered by parity and season in OvuGel and Controls; 2) Determine the impact of Day of OvuGel administration and estrus in Controls; and 3) Evaluate OvuGel and Control interactions with parity and season on farrowing rate and litter size. The experiment was performed in replicates in summer and fall with sows assigned from Monday and Thursday wean groups by parity to OvuGel or Control after weaning (Day 0).