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The frog test had been a highly dependable pregnancy testing method since the 1930s until the immunological test was presented in the 1960s. [12] Pharmacists would inject the female's early urine sample into the frogs and confirm their pregnancy with the spawning of eggs within 18 hours. However, there was a critical prerequisite for accurately ...
Gestation crates, used on modern pig-production facilities, commonly referred to as factory farms. A gestation crate, also known as a sow stall, is a metal enclosure in which a farmed sow used for breeding may be kept during pregnancy.
The term "rabbit test" was first recorded in 1949, and was the origin of a common euphemism, "the rabbit died", for a positive pregnancy test. [4] The phrase was, in fact, based on a common misconception about the test. While many people assumed that the injected rabbit would die only if the woman was pregnant, in fact all rabbits used for the ...
Since the late 1970s, scientists have used the herd to conduct studies on feral horse behavior, social structure, ecology, remote contraceptive delivery and pregnancy testing, and the effects of human intervention on other wild animal populations. There are few other wildlife populations of any species worldwide that have been studied in as ...
Idexx Laboratories office in Markham, Canada. IDEXX Laboratories, Inc. is an American multinational corporation [3] [4] engaged in the development, manufacture, and distribution of products and services for the companion animal veterinary, livestock and poultry, water testing, and dairy markets.
The African clawed frog or platanna, Xenopus laevis, was first widely used in laboratories in pregnancy assays in the first half of the 20th century. When human chorionic gonadotropin , a hormone found in substantial quantities in the urine of pregnant women, is injected into a female X. laevis , it induces them to lay eggs .
A modern hormone pregnancy test, showing a positive result A series of pregnancy test strips, taken one per day at the beginning of a pregnancy. A pregnancy test is used to determine whether a female is pregnant or not. The two primary methods are testing for the female pregnancy hormone (human chorionic gonadotropin (hCG)) in blood or urine ...
Heat shock 10 kDa protein 1 (Hsp10), also known as chaperonin 10 (cpn10) or early-pregnancy factor (EPF), is a protein that in humans is encoded by the HSPE1 gene. The homolog in E. coli is GroES that is a chaperonin which usually works in conjunction with GroEL .
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