The influence of timing of artificial insemination on fertility and hatchability of breeder hens was carried out by inseminating breeder hens at 10:00 hr and 15:00 hr with pooled semen from Shikabrown White breeder cocks for four weeks. Fertile eggs were collected two days after the first insemination and stored at a temperature of 16 C for seven days before incubation. Fertility was higher (P ...

Introduction The number of equine sperm used for artificial insemination (AI) in the mare was largely established by research conducted at Colorado State University in the 1970s [1-3]. The minimum insemination dose of 500 million progressively motile spermatozoa (PMS) established in these studies has been widely used as an industry standard. Clinical observations suggest that this insemination ...

Objective. Determine which factors predict multiple pregnancy in gonadotropin-intrauterine insemination cycles so that cancellation criteria might be developed. Study Design. Retrospective chart review of all patients undergoing gonadotropin-intrauterine insemination over a continuous 36 month period. Results. No factors examined were able to predict the occurrence of multiple pregnancy. Conclu...

OBJECTIVE To compare fecundity rates following intrauterine insemination (IUI) with donor sperm frozen conventionally versus an IUI-ready preparation. DESIGN Both retrospective results and a prospective, randomized study where recipients were assigned to one of two sperm cryopreservation methods in each cycle of intrauterine insemination are reported. SETTING University-based infertility pr...

OBJECTIVE To evaluate the effectiveness of 15 minutes of immobilisation versus immediate mobilisation after intrauterine insemination. DESIGN Randomised controlled trial. Setting One academic teaching hospital and six non-academic teaching hospitals. PARTICIPANTS Women having intrauterine insemination for unexplained, cervical factor, or male subfertility. INTERVENTIONS 15 minutes of immo...

OBJECTIVE To look at the level of compliance with Swedish law whether or not parents intend to tell their child about donor insemination. We also wanted to look at the parents' attitudes towards open-identity sperm donors and at relationships within the family. METHOD All parents who were treated and gave birth to a child through donor insemination from 1997 to 2003 were included in the study...

The cause of infertility is unexplained in about 22-28% of all infertile couples. The prognosis for spontaneous pregnancy in such couples is better than in those with diagnosed causes of infertility. Traditional treatment options in this group have included expectant management, clomifene citrate, intrauterine insemination with (super ovulation plus intrauterine insemination) or without (intrau...

In vivo blastocyst production and collection using superovulation and intrauterine insemination was established in albino Syrian hamsters. Twenty female albino hamsters were injected pregnant mare serum gonadotropin (PMSG, 25 IU) in non-breeding season and 48 h or 56 h later, 25 IU of human chorionic gonadotropin (hCG) were injected. Both groups were divided into two subgroups of natural mating...

The first successful artificial insemination in cats was described 40 years ago. However, the insemination in cats is at present not as commonly performed in daily veterinary practice as the insemination in dogs due to the practical difficulties in collecting a sperm sample from the tomcat, the small volume of the sperm obtained, the few possibilities to determine the optimal timing of insemina...

A newly developed technique for trans-cervical deep uterine insemination of goats is described. An experiment was conducted to compare this transcervical method with the laparoscopic intrauterine insemination using frozen-thawed semen. Of the 46 primiparous and 21 multiparous estrus-synchronized Boer goat does inseminated transcervically, 71% (22/31) kidded compared with 53% (19/36) of does ins...