Showing papers in "Theriogenology in 2008"

TL;DR: Cytobrush cytology was the most reliable method of diagnosing endometritis in cattle and was chosen as the reference diagnostic test.

TL;DR: Presynchronization of cows with Double-Ovsynch increased fertility in primiparous cows compared to a standard Presynch protocol, perhaps due to induction of ovulation in non-cycling cows and improved synchronization of cycling cows.

TL;DR: An update of research progress highlights recent findings on the repeatability (predictability) within individuals of follicle recruitment and wave pattern, the relationship between oocyte competence and follicular status, and the dynamics of small follicles.

TL;DR: The aim was to identify additional behavioural and physiological indicators of piglet survival incorporating traits reflective of both the intrauterine and extrauterine environment and identify additional factors influencing piglet neonatal survival.

TL;DR: An overview of human and sheep pregnancy is provided, with emphasis placed on placental development and function as an organ of nutrient transfer.

TL;DR: In conclusion, timed-AI pregnancy rates were improved with a 5d CO-Synch + CIDR program with timed- AI at 72 h after C IDR withdrawal, compared to a 7dCO-synch +CIDRprogram withtimed-AI at 60 h after cIDR withdrawal.

TL;DR: Prostaglandin treatment on the day of CIDR insertion reduced serum progesterone during treatment, and resulted in increased maximum DF diameter and ovulation rate and in heifers treated with PGF on Day 0.

TL;DR: It was not until the flow cytometric sorting system was improved greatly and successful cryopreservation of sex-sorted bull sperm was developed that efficacious approaches to commercialization of sexed semen could be implemented worldwide in cattle.

TL;DR: Bacterial, fungal, protozoan, and viral causes of reproductive dysgenesis in cattle, sheep, goats, pigs, horses, dogs, and cats are summarized to avoid zoonotic infections resulting from reproductive pathogens of animals.

TL;DR: Emphasis is placed on proper diagnostic sampling of the prostate gland, its fluid, and interpretation of findings, as well as emerging medical options for treatment of canine prostatic disease.

TL;DR: There was no significant difference between observed and calculated methods of determining the beginning of follicle deviation, and the size at which the DF acquires ovulatory capacity in B. indicus heifers.

TL;DR: Long-term exposure of Gir cows to heat-stress had a delayed deleterious effect on ovarian follicular dynamics and oocyte competence, and HS reduced blastocyst development during Phase III.

TL;DR: Development of cloned bovine embryos was enhanced by 5-aza-dC and TSA; furthermore, the combination was more effective than either one alone.

TL;DR: Some of the problems associated with in vitro production of embryos are highlighted and some of the ways of overcoming these problems are discussed.

TL;DR: It is hypothesized that reinforcing the membranes with molecules having particular properties, such as cholesterol, will improve the ability of boar sperm to withstand cold temperatures and cryopreservation protocols, thereby resulting in better survival and motility characteristics, and reduced non-regulated capacitation and spontaneous acrosome reactions.

TL;DR: Among the treatments available, the use of repeated low doses of prostaglandins alone or in association with either dopamine agonists or progesterone-receptor antagonists has been demonstrated to be a viable alternative for valuable breeding dogs.

TL;DR: The best strategy to prevent AI-transmitted diseases is to use boars that are free of specific pathogens, to monitor the animals and semen regularly, and to maintain very high biosecurity.

TL;DR: The data demonstrate that TSA treatment after HMC in pigs may affect reprogramming of the somatic genome resulting in higher in vitro embryo development, and enable full-term in vivo development.

TL;DR: In conclusion, cysteine or vitamin E supplementation of tris egg yolk extender improved motility, progressive motility and integrity of the sperm membrane and DNA of frozen-thawed epididymal cat spermatozoa.

TL;DR: Reproductively normal crossbred beef heifers were individually offered a diet of barley straw and concentrate supplemented with one of four levels of a fish oil (FO) enriched supplement and blood samples were collected for the measurement of progesterone, oestradiol, fatty acids, insulin-like growth factor 1 (IGF-1) and metabolites.

TL;DR: Until a validated pluripotent bovine stem cell marker can be identified, it might be advisable to combine the use of epiblast and trophoblast-specific markers to rule out the presence of early committed trophectoderm cells in bovines embryonic stem cell cultures.

TL;DR: It is shown that different in vitro tests of semen quality are of predictive value for the success rate of semen cryopreservation in the chicken, the most accurate being membrane fluidity.

TL;DR: This paper will describe the definitions, signalment, historical findings, incidence, clinical signs, physical exam findings, and diagnostic findings in canine pyometa and mucometra, and hematometra and hydrometra.

TL;DR: Evidence now exists supporting the concept that the uncompensable effect is due to chromatin aberrations in morphologically normal or near-normal fertilizing sperm present in abnormal ejaculates, which may be the best indication for the presence of an uncompensable deficiency.

TL;DR: The aim of this review is to evaluate the mare as an animal model to study age-associated changes in reproduction and to improve the understanding of oocyte and follicular maturation in vivo.

TL;DR: Recent discoveries of unexpected variation in genome organization and regulation may reveal a heretofore unknown lack of homology between model animals and target animals that could account for a significant proportion of the weakness in predictive ability.

TL;DR: Four experiments confirmed that superior calfhood nutrition augmented gonadotropin secretion (which is probably mediated by metabolic hormones); this resulted in larger testes at 1 y of age and an earlier onset of spermatogenesis.

TL;DR: It is inferred that the capacitation-dependent formation of an aggregated lipid ordered apical ridge surface area in the sperm head plasma membrane was not only relevant for ZP-binding, but also for the Zp-induced acrosome reaction.

TL;DR: The objectives of this paper are to review the pathophysiology of cystic lesions of canine uterus, to demonstrate these using subgross photomicrographs taken from natural cases, and to present key diagnostic features of each.

TL;DR: It is inferred that there is potential for venereal transmission of leptospirosis in small ruminants and analogous findings in cattle are inferred.