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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 ...
The development of quantitative methods for livestock production includes mathematical modelling based in plant-herbivore or predator-prey models to forecast and optimise meat production. An example is the Predator-Prey Grassland Livestock Model (PPGL) [7] to address the dynamics of the combined grass-animals system as a predator-prey dynamical ...
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.
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 following is a list of instruments that are used in modern obstetrics and gynaecology. [ 1 ] [ 2 ] This list is incomplete ; you can help by adding missing items .
Prenatal testing is a tool that can be used to detect some birth defects at various stages prior to birth. Prenatal testing consists of prenatal screening and prenatal diagnosis, which are aspects of prenatal care that focus on detecting problems with the pregnancy as early as possible. [1]
Immunologic pregnancy tests were introduced in 1960 when Wide and Gemzell presented a test based on in-vitro hemagglutination inhibition. This was a first step away from in-vivo pregnancy testing [42] [43] and initiated a series of improvements in pregnancy testing leading to the contemporary at-home testing. [43]
Swiss Precision Diagnostics GmbH is a Swiss medical diagnostic company, that produces Clearblue-branded pregnancy testing equipment. History The ...