Showing papers in "Theriogenology in 2015"

TL;DR: Melatonin therapy is emerging as a promising strategy to improve the natural reproductive performance of cows suffering conditions of heat stress and the hormonal strategies used to mitigate these effects at the farm level are reviewed.

TL;DR: It is suggested that quality assessment of thawed bull sperm using CASA and flow cytometry may provide a reasonable prediction of bovine semen fertility.

TL;DR: The research and information from the literature showed that higher osmolarities promote greater longevity in anuran sperm, and some freshwater fish sperm and that anuran and cryptobranchid sperm maintained membrane integrity long after the cessation of motility, demonstrating a preferential sharing of energy reserves toward the maintenance of membrane integrity.

TL;DR: A higher BCS during prepartum and postpartum period and increased NEFA and aspartate aminotransferase levels, along with decreased glucose and urea nitrogen levels during post partum, were associated with ketosis, increased reproductive disorders, and decreased reproductive performance in dairy cows.

TL;DR: This study was designed to test a vitrification method in Atlantic salmon spermatozoa and determine the capacity of seminal plasma (SP) to protect these cells from cryoinjuries.

TL;DR: The present study emphasizes the need for both training of the laboratory staff in monitoring HCCP in routine semen production and audits in such AI centers for the external control of hygiene parameters.

TL;DR: A decrease in abortions and a nearly 85% decrease in fetal infection rate in cattle vaccinated for BVDV compared with unvaccinated cohorts are revealed.

TL;DR: It is indicated that crocin (1 mM) improves bovine sperm quality and its fertilization capability, directly and/or indirectly, by modulating ROS concentration.

TL;DR: Benefits of supplementation of the Beltsville extender with 4% LDL resulted in higher quality of frozen-thawed rooster sperm, and Progressive motility and acrosome integrity were not affected by LDL levels in the extenders.

TL;DR: The evaluation of the levels of cytokines and Hp in serum, but primarily in uterine washings, can be an important diagnostic indicator in cows that developed subclinical endometritis and shows that the simultaneous examination of selected parameters of antagonistic interactions allows for better assessment of the current state of local immunity in the uterus.

TL;DR: Differences between high- and low-potential COCs were examined by transcriptomic analysis of CC biopsies obtained from C OCs before individual in vitro maturation, fertilization, and culture until Day 8 after fertilization and revealed a significantly higher expression of Glycine amidinotransferase (GATM) (posttranslational modification, amino acid metabolism, and free radical scavenging).

TL;DR: Subclinical endometritis and uterine infections linked to common pathogens were playing a minor role as a cause for repeat breeder cows in this study, with alternative reasons for failure to conceive in these cows discussed.

TL;DR: It is suggested that resveratrol increased the ATP content in oocytes via energy homeostasis and improved the developmental ability of oocytes grown in vitro.

TL;DR: Cryopreserved semen from Churra rams using TES-Tris-fructose or soybean lecithin seems to be a suitable replacement for EY, but its effect on mitochondria must be investigated and Trolox and crocin might be useful for ram semen freezing.

TL;DR: This work used suppression subtractive hybridization technology to establish a complementary DNA subtractive library, and combined microarray technology and sequence homology analysis to screen and analyze differentially expressed genes in the library, comparing fresh sperm with the frozen-thawed sperm of nine bulls.

TL;DR: A series of baseline techniques comprising isolation and transplantation of female and male early-stage germ cells in sturgeon to generate a germline chimera as a potential tool for surrogate reproduction and gene banking are reported.

TL;DR: The first known and functional method of sturgeon sterilization is reported, and tissue-specific expression of Ardnd is confirmed only in the gonads of both sexes.

TL;DR: It is demonstrated that lecithin can be considered as a suitable alternative to egg yolk in goat semen cryopreservation, because it ensures higher fertilization rates and a better protection from membrane damage by cold shock.

TL;DR: Different phases of the pharmacologically synchronized ovarian follicular wave did not affect OPU-IVEP in B indicus, B taurus, and B bubalis heifers, andB indicus heifer showed greater OPU -IVEP efficiency than did the other genetic groups, under the same management conditions.

TL;DR: The objective of the present study was to monitor the diameter of the uterine artery, uterine blood flow, and the combined thickness of the uterus and placenta (CTUP) throughout gestation in a large number of pregnant mares of different age and parity.

TL;DR: It is indicated that the proportion of DHA in sperm can be increased at the expense of DPAn-6 by either FO or FLX supplementation, indicating de novo elongation and desaturation of short- into longer-chain n-3 FAs in testes.

TL;DR: Novel evidence is provided that FGF 17 enhances cumulus expansion in bovine COCs submitted to IVM and that the supplementation of the IVM medium with FGF17 and BMP15 may improve embryo quality.

TL;DR: Overall, IRT showed poor performance for detecting cows about to ovulate, and alerts generated by SCR HR LD tags based on a lower activity threshold level had high sensitivity and may be able to detect a high proportion of cows in ovulatory periods in pasture-based system.

TL;DR: MaZda et al. as discussed by the authors characterized changes in the ultrasound characteristics of the CL and uterus in pregnant, inseminated non-pregnant, and cyclic beef heifers and correlated findings with systemic progesterone (P4) concentrations with the intention of identifying possible markers for early identification of pregnancy.

TL;DR: A new system for the direct transfer of vitrified embryos to be used under farm conditions was developed and it was found that the CVM combined with this new one-step warming in-straw CP dilution procedure could be used for direct ET under field conditions.

TL;DR: Halloysite nanotubes modified using the surfactant, stearyldimethylbenzylammonium chloride, were tested for its efficacy in protecting against the detrimental effects of zearalenone exposure and significantly reduced the damage to the fat in the colostrum and the protein and lactose in the milk induced by the ZEN-contaminated feed.

TL;DR: It can be suggested that marked deterioration of the quality of fractionated ejaculates during the spring-summer period was probably caused by impaired reproductive function in the boars, particularly during the autumn-winter period.

TL;DR: Dromedary camel sperm benefit from exposure to CLC before cryopreservation; this may facilitate the routine collection and storage of sperm from this species.

TL;DR: It is found that the AMH Gen II ELISA is reliable for diagnosing spay and neuter status of cats and that the domestic cat might be an interesting model for studies on AMH dynamics.

TL;DR: It is concluded that supplementation of freezing and thawing media with both GSH and AA has a combined, beneficial effect on frozen-thawed boar sperm, which is greater than that obtained with the separate addition of either GSH or AA.