seasonally breeding species the animal may not return to estrus (when mating is done during the end of the breeding season) because the season was over. 
The Udderly EZ ™ Cow & Miniature Cow Milker #EZ003, our cow milking machine, is the safest and most effective hand held, trigger-operated vacuum pump available.
The UDDERLY EZ ™ MILKER was designed and tested over a five year research and development period with input from leading industry Professionals, Flock masters, Herdsmen, Veterinarians and Breeding Farm Managers from around the world. The relationship & animal mating between living beings have been the key to forming links between individuals in nature. If wild cows are to be handled, an extra-long dark box can be constructed. Prior to breeding cattle should be handled in the box so that they can become familiar with it. A new novel dark box can cause stress (Lay et al., 1992). 
Preliminary experiments with cattle are yielding a similar result (Kinsman, 1986, personal communication). 
13 Pregnancy Testing Methods Rectal Palpation - gloved hand is inserted into the rectum to palpate the uterus through the rectum wall Rectal Doppler Technique - probe that is inserted into the rectum. Bulls and cows go through a ritual before the actual “high-mount” of mating A cow’s gestation is approximately 246 days, + or – 10 days Artificial insemination is common, with a success rate of 50% – 80%.
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