This study was conducted to evaluate the influence of category (heifers, primiparous or multiparous cows) on pregnancy rates in a large scale resynchronization ovulation program. Nelore heifers (n = 903), primiparous lactating cows (n = 338) and multiparous lactating cows (n = 1,223) were synchronized using a conventional protocol of estradiol/P4-based fixed-time artificial insemination (FTAI)....

artificial insemination, in vitro fertilisation and surrogacy) commonly known as Assisted Reproductive Technologies (ARTs), which started in 1999 in the country, reached an important turning point on September 13, 2008. At a two day National Consultation on ‘Assisted Reproductive Technologies (ARTs): Emerging Concerns and Future Strategies’ organised by Sama Resource Group for Women and Health ...

In a recent case, artificial insemination was employed by a couple in an attempt to ensure the birth of a deaf child. In response to this, I argue that individuals should not be allowed to select for or against deafness. While I establish that preferences for deaf children can be inherently just, allowing individuals to secure these preferences may have unacceptable consequences for existing pe...

The assumption that secrecy is of paramount importance in AID programmes has arisen in order to protect the three parties involved: donor, recipient couple and offspring. Due to the uncertain legal position, he medical profession has also been concerned to protect itself against possible litigation. Recent calls for an abolition of all secrecy have been motivated by the knowledge and experience...

• In an independent noninferiority FTAI study of 2,620 cows from 40 Canadian herds, first service CR was 40.4% for FACTREL and 41.0% for Fertiline® (GnRH acetate, Vétoquinol, Lavaltrie, Quebec, Canada); FACTREL was noninferior to Fertiline.3 Another independent study with 3,938 cows showed CR of FACTREL was noninferior to Cystorelin® (gonadorelin diacetate tetrahydrate injection) in FTAI (36% v...

AIM Evaluation of the effect of clinical mastitis (CM) and its treatment outcome on the reproductive performance in crossbred cows retrospectively. MATERIALS AND METHODS Datasets of 835 lactating cows affected with CM during a period of 12 years (2001-2012) were considered for this study. Mastitis treatment related data and reproductive parameters such as days to first detected heat (DTFDH), ...

Methods of semen collection and artificial insemination (AI) in poultry, requirement for diluents, methods of liquid and frozen storage of avian semen and evaluation of spermatozoa after storage for fertilizing ability are reviewed. Frozen storage of semen from non-domestic birds is also briefly discussed.

A journal of medical ethics is likely to be judged by three criteria: by the discernment with which medical procedures are selected for consideration; by the elegance and accuracy with which they are presented; and by the quality of the ethical commentary offered upon them. The choice of artificial insemination as the procedure to be amined n this first number ofa new journal may be questioned ...

Artificial insemination using the husband's semen (AIH) has always seemed more acceptable than the same procedure using donor semen. However, the layman may not even have thought of the legal problems or the moral dilemma if in fact a woman is inseminated using her husband's frozen semen after his death. In the USA there are already sperm banks set up by private individuals, generally for the u...

The present study aimed to determine the effect of administrating prostaglandin F2α (PGF2α) and GnRH at the time of artificial insemination (AI) on the pregnancy per artificial insemination (P/AI) and the pregnancy survival rate of dairy cows. A number of 830 lactating Holstein cows were randomly divided into four groups. Cows in group 1 (n=200) treated with 150 µg d-cloprostenol. In group 2 (n...