نتایج جستجو برای: artificial insemination
تعداد نتایج: 290674 فیلتر نتایج به سال:
Genetic and Economic Evaluation of Progeny Testing Selection Programs with Different Levels Artificial Insemination Milk Recording for Breeding Khuzestani Buffalo
OBJECTIVES Male infertility is on the rise. Artificial insemination is an option in many cases like oligozoospermia or oligoasthenozoospermia. Homologous insemination is helpful for some couples in whom sperm count is low. This study was aimed to understand the most suitable portion of split ejaculate for insemination and also the level of calcium and magnesium in each split. MATERIALS AND ME...
This article covers recent developments in the field of equine artificial insemination. Use of both chilled and frozen semen is discussed. For chilled semen, there is new information about what to do if the semen shipment is delayed and on maximising pregnancy rates in older mares by careful evaluation of the cervix. The number of motile sperm needed for insemination is reviewed in light of the...
Artificial insemination (AI) is an important technology for improving animal production. Through consistent use of AI, herd genetics can be advanced at a rapid rate. While AI is a technology that enables the dissemination of selected male genetics, embryo transfer (ET) is a technology that enables the dissemination of selected female genetics and, by using ET, frozen embryos can be moved around...
Currently, timed artificial insemination (TAI) can be applied routinely in the reproductive programs on farms. TAI protocols are designed to promote control of both luteal and follicular function, permitting the TAI with satisfactory pregnancy per AI (P/AI). A variety of protocols for TAI have been designed according to specific characteristics and requirements of different breeds, animal categ...
Since the development by Quinn and Burrows (1936) of a simple method of obtaining semen from and inseminating gallinaceous (chicken-like) birds, artificial insemination has made possible a number of studies on the physiology of reproduction and hybridization of these birds. An extension of the technique to the smaller birds, particularly to the pigeons and doves, holds promise as a tool for mor...
BACKGROUND Insemination with donor sperm is an option for couples for whom in vitro fertilisation (IVF) or intra-cytoplasmic sperm injection (ICSI) has been unsuccessful, couples with azoospermia and for single women or same sex couples. Insemination of sperm can be done via cervical (CI) or intra-uterine (IUI) routes. IUI has been considered potentially more effective than CI as the sperm bypa...
Methods of collection and freezing of semen of some deer species and aspects of controlled reproduction associated with the use of frozen-thawed semen by artificial insemination (AI) are discussed.
Characteristics of buffalo semen, diluents used for liquid storage, aspects involved in freezing and thawing of semen are reviewed, and fertility results after artificial insemination (AI) with frozen-thawed semen are given.
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