In sheep industry, pregnancy rate after artificial insemination (AI) declines due to the complex anatomy of the cervix in ewes, such that it might prevent effective intrauterine insemination. At estrus, cervical relaxation occurs to some degree in ewes, which is regulated by the changes in the levels of reproductive hormones. This study aimed to evaluate the effects of estradiol and intravenous...

Prenatal exposure to marijuana has been associated with a variety of brain deficits, as Δ9-tetrahydrocannabinol (THC), its main active ingredient crosses the placenta and affects foetal brain development. Despite this effect, marijuana remains a commonly abused substance among pregnant women. In the current study, we examined the histological and biochemical changes in the superior colliculus (...

Konigsson, K. 2001. Induced Parturition and Retained Placenta in the Cow. Inhibition of prostaglandin F z a synthesis and antibiotic therapy Doctor's dissertation. In order to study rapid changes in 1 5-kctodihydro-PGF2, (PG-metabolite), in the period preceding parturition in cattle, prc-term parturition was induced by dcxamcthasonc injection in four heifers on days 254 to 265 in gestation. Blo...

Our objective was to study the relationships between colostral somatic cell counts (SCC, a criterion for mastitis severity at parturition) and early calf growth, blood indicators of immunity, and pre-weaning faecal and health states. Sixty-nine Holstein cows were assigned to three groups of greater (n = 21, 5051 × 10(3)), medium (n = 38, 2138 × 10(3)) and lower (n = 10, 960 × 10(3)) colostral S...

Forty-eight mature US Spanish does (40 kg BW), from a herd selected for cashmere ®ber growth, were used to investigate in ̄uences of the number of fetuses and levels of ME and CP in supplements during gestation and lactation on doe and kid performance. At 60 days of gestation, does with single or twin fetuses consumed mature Bermudagrass hay ad libitum and 1% BW (DM basis) of supplements with 18...

Limited information is available describing the development of the neonatal fecal microbiome in dogs. Feces from puppies were collected at 2, 21, 42, and 56 days after birth. Feces were also collected from the puppies' mothers at a single time point within 24 hours after parturition. DNA was extracted from fecal samples and 454-pyrosequencing was used to profile 16S rRNA genes. Species richness...

in sheep industry, pregnancy rate after artificial insemination (ai) declines due to the complex anatomy of the cervix in ewes, such that it might prevent effective intrauterine insemination. at estrus, cervical relaxation occurs to some degree in ewes, which is regulated by the changes in the levels of reproductive hormones. this study aimed to evaluate the effects of estradiol and intravenous...

In Préalpes de Sud ewes after an autumn lambing, the mean post-partum interval to first LH surge was 10 +/- 1 days and 17 +/- 1 days for non-suckling and suckling ewes, respectively. Post-partum interval to first luteal phase, estimated from plasma progesterone concentrations, was similar in non-suckling and suckling ewes (27 +/- 1 days and 28 +/- 5 days, respectively). Interval to first oestru...