The objective of the present field study was to establish the beneficial effects of re-insemination of non-pregnant cows using ultrasonography 20 to 23 days after the artificial insemination. A total of 245 Japanese Black cows were artificially inseminated and early pregnancy diagnosis (EPD) was performed on 92 cows 20 days after insemination, using ultrasonography. The remaining 153 cows were ...

BACKGROUND Results regarding the use of bovine somatotropin for enhancing fertility in dairy cattle are variable. Here, the hypothesis was tested that a single injection of a sustained-release preparation of bovine somatotropin (bST) during the preovulatory period would improve pregnancy success of lactating dairy cows at first service. RESULTS The first experiment was conducted in a temperat...

Ongole cattle in smallholder farms on Java, Indonesia, have been crossed with Limousin, which is not controlled repeatedly. The character of estrus affects the success Artificial Insemination. This study aimed to determine relationship between characters before double dose artificial insemination using frozen semen sexing. research was conducted Senggreng Village, Sumber Pucung District, Malang...

This Article attempts to untangle Jewish law regarding assisted reproductive technologies (ARTs), namely artificial insemination with husband’s sperm, artificial insemination with donor sperm, and in vitro fertilization. The author examines teachings by prominent Jewish law scholars and clarifies basic schools of thought regarding each method. He explores Jewish law prohibitions on incest and a...

reproductive performance was evaluated in non-lactating crossbred ewes to which were administered the exogenous gnrh and pmsg. the ewes were randomly allocated in three treatment groups (n=40).after accurate detection of estrus and 2 hours prior to mating, 2.5 ml of distilled water and 2.5 ml of gnrh were injected intramuscular to each ewe of the first (control) and second group, respectively. ...

This study was carried out to evaluate the effect of artificial insemination (AI) time and methods on fertilization and delivery rate at onset of estrus cats. Artificial insemination method was used by a transcervical insemination (TCI) or intra-vaginal insemination (IVI) using frozen epididymal sperm (FES) with Norwegian catheter. Semen was collected from epididymal spermatozoa after testis ec...

The objective of this work was to obtain prevalence estimates of cloudy vaginal mucus in artificially inseminated Holstein cows raised under intense heat, in order to assess the effect of meteorological conditions on its occurrence during estrus and to determine its effect on conception rate. In a first study, an association was established between the occurrence of cloudy vaginal mucus during ...

this study had the objective of determining the fertility and calving ease of small holder indigenous cattle herds inseminated with imported semen from proven sires. sixty one indigenous cows of different breed origin (bunaji, sokoto gudali and rahaji) were selected from different herds across jigawa state-nigeria, and were used for this study. the selected dams were inseminated with semen from...