Showing papers in "Theriogenology in 2013"

TL;DR: The present review summarizes the toxicological data on the effects of Fusarium mycotoxins on ovarian function, testicular function, placenta and fetus, and puberty/sexual maturity of domestic animals.

TL;DR: There were only marginal effects of increasing dose of GnRH or PGF2α on fertility to TAI after Double-Ovsynch on ovulation and luteolysis and therefore increase pregnancies per artificial insemination (P/AI).

TL;DR: In incubation times and concentration toxicities established for the main permeable CPAs used for conventional freezing of rabbit sperm, the postthaw motility and DNA integrity of sperm were significantly better than control.

TL;DR: The authors' method allows the sexing of domestic chicken at a very early stage of embryonic development, even before the onset of pain perception, and represents a vast improvement compared with culling day-old chicks.

TL;DR: In conclusion, a short proestrous interval reduced pregnancy rate after fixed-time AI in beef cattle because a low progesterone environment during growth of the ovulatory follicle increased the preovulatory follicles size and subsequent CL size and function, and compensated for the effect of a long proestrus on pregnancy rates.

TL;DR: Prostaglandin-based protocols for timed AI achieved poor reproductive outcomes, but increasing the interval between PG injections might increase pregnancy rates, and the point of view regarding future perspectives on the use of PG in programs of controlled sheep reproduction is presented.

TL;DR: The results indicated that the CASA used can affect motility results even when the same motility recordings are used, and should be considered as a suitable model for longer motility analyses.

TL;DR: In conclusion, L-carnitine supplementation during IVM redistributed lipid droplets in oocytes; if they survived vitrification, their developmental competence was similar to that of nonvitrified oocytes.

TL;DR: ACRBP and TPI can be used as markers of boar sperm freezability before starting the cryopreservation procedure, thereby avoiding unnecessary costs involved in this practice.

TL;DR: regulation of ovine oocyte cAMP concentrations during IVM improved embryo quality compared with embryos produced by standard IVM methods, and delayed, but did not inhibit, completion of nuclear maturation.

TL;DR: In conclusion, quercetin significantly improved the motility and zona binding ability of cryopreserved stallion sperm, and reduced DNA fragmentation in sex-sorted, cryopReserved stallian sperm.

TL;DR: PFE are less resistant than GFE to cryopreservation not only in terms of sperm motility and membrane integrity, but also in the integrity of nucleoprotein structure.

TL;DR: The detrimental effects of heat stress were dependent upon embryo breed and were more evident in Bos taurus embryos than in Bos indicus embryos.

TL;DR: Transfer of proteins from exosome to sperm and their ability to block cholesterol efflux supports a direct interaction between these vesicles and sperm, whereas inhibition of some capacitation-dependent features suggests a stabilizing function for exosomes in boar semen.

TL;DR: This review presents a brief overview of the current knowledge regarding the bovine placenta and attempts to define terms, and contemporary and novel terms are proposed from a biological perspective.

TL;DR: Because the HSP genes (HSP25, HSP70, and HSP90AA1) and the antiapoptotic BAG3 gene were dramatically altered in heat-stressed chicken testes, it is concluded that these genes were important factors in the avian testes under acute heat stress.

TL;DR: Both studies show that chilling injury associated with hypothermic Dilution results in lower quality of stored boar semen compared with isothermic dilution and that the type of semen extender affects the outcomes.

TL;DR: It is seen that the presence in semen samples of S. marcescens, K. oxytoca, M. morganii, or P. mirabilis, but not P. stuartii or E. coli, was negatively associated with sperm motility, and bacterial contamination should always be examined in sperm samples prepared for artificial insemination.

TL;DR: Serum AMH concentration varies with sex in the neonatal period, postnatal sexual development and season, and serum AMH concentrations can be used as a biomarker for the presence of testicular tissue.

TL;DR: Alfaxalone was associated with better neonatal vitality during the first 60 minutes after delivery, and both alfaxalone and propofol can be safely used for induction of anesthesia in bitches undergoing emergency cesarean section.

TL;DR: The addition of 50% of seminal plasma seems to modify the physiology of thawed boar spermatozoa, possibly through membrane changes and ROS increase, and may favor the performance of post-thaw boar semen.

TL;DR: Presynchronization of cows with Double-Ovsynch induced ovulation in noncycling cows and appeared to increase most aspects of synchronization during the Ovsynch protocol.

TL;DR: Progesterone supplementation pre-TAI increased P/AI in nonpresynchronized cows and reduced pregnancy losses, particularly in acyclic cows.

TL;DR: Some protocol variables of sperm analysis by computer-assisted sperm analysis software can affect the measurement of eel sperm quality parameters, and should be considered before directly comparing results obtained by different laboratories.

TL;DR: Incorporation of TAI programs early in the BS increased reproductive performance of suckled beef cows.

TL;DR: The data suggest that the detrimental effects of LA on oocyte developmental competence are mediated, at least in part, by a reduction in GPx1 and SOD2 mRNA expression, and VE and GPx may provide protection to most of the inhibitory effects.

TL;DR: Treatment with forskolin before vitrification improved cryotolerance of Bos indicus IVP embryos, resulting in good post-transfer pregnancy rates.

TL;DR: The review concluded that the main challenges for the future are evaluating the feasibility, effectiveness, sustainability, and effects of mass nonsurgical sterilization campaigns on dog population size and impact as well as integrating nonsurgical fertility control with disease vaccination and public education programs.

TL;DR: It is suggested that FD medium supplemented with trehalose at appropriate concentrations improves sperm DNA integrity, but does not improve fertilization and preimplantation embryo development of IVM oocytes following ICSI.

TL;DR: This study proves that the incidence of estrus induction-although very low-is highest after treatment in estrus or postestrus, the duration of efficacy varies between 16 and 37 months, and estrus suppression is reversible and animals remain fertile after the treatment effect has expired.