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[3] A weanling horse is a foal that has been weaned, usually between four and six months old. Once it is a year old, the horse is referred to as a yearling. Weanlings are separated from their dam and often grouped with other weanlings to keep each other company. Weaning is a very stressful time for a foal. [4] [5]: 231
Foal immunodeficiency syndrome (FIS), originally known as Fell pony syndrome, mainly affects two breeds of ponies: the Fell and Dales. FIS is a recessive genetic disease . Affected foals appear normal at birth, but become weak, and either die or must be euthanized by three months of age due to persistent infections caused by immunodeficiency.
Other studies are possible, as in psychological factors. For example, Barbara Rogoff has noted, citing a 1953 study by Whiting & Child, that the most distressing time to wean a child is at 13–18 months. After this peak, weaning becomes progressively easier and less distressing for the child, with "older children frequently wean[ing ...
A foal at about weaning age. A foal is an equine up to one year old; this term is used mainly for horses, but can be used for donkeys. More specific terms are colt for a male foal and filly for a female foal, and are used until the horse is three or four. When the foal is nursing from its dam (mother), it may also be called a "suckling".
Neonatal maladjustment syndrome (NMS) is a syndrome where newborn foals exhibit uncommon behaviors, occurring in three to five percent of live births. These behaviors can include aimless wandering, hypersensitivity to loud sounds and brightness, weakness or coordination issues, and the incapability to nurse.
Under ideal conditions, a yearling will have already been trained as a suckling or weanling foal to lead, to have its hooves handled, to be groomed, clipped, blanketed and loaded into a horse trailer. If these tasks have not been accomplished, the yearling year is a time they are often done, in part to get the horse used to human handling ...
During the final month of gestation, alloantibodies concentrate into the colostrum. Horses, unlike humans, have an epitheliochorial placenta which prevents the transfer of antibodies to the foal in-utero. Foals are only exposed when they first nurse and ingest colostrum, so therefore are born without the disease and acquire it soon after birth.
Cancer in children is rare in the UK, with an average of 1,800 diagnoses every year but contributing to less than 1% of all cancer-related deaths. [76] Age is not a confounding factor in mortality from the disease in the UK. From 2014 to 2016, approximately 230 children died from cancer, with brain/CNS cancers being the most commonly fatal type.