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Pygmy Goat
The American Pygmy is an American breed of achondroplastic (dwarf) goat. It is small, compact and stockily built. Like the Nigerian Dwarf, it derives from the West African Dwarf group of breeds of West Africa. Between 1930 and 1960, animals of this type were imported to the United States for use either as zoo animals or for research; some were later kept and bred as companion animals and established as a breed in 1975. It may also be known as the Pygmy or African Pygmy. It is quite different and separate from the British Pygmy breed. History Between about 1930 and 1960 a variety of small goats of the West African Dwarf group of breeds of West Africa were imported from zoos in Germany to the United States, to be exhibited in zoos or used as research animals. Some came into the hands of private breeders who kept and bred them as companion animals. By the 1970s, two distinct types had developed: one broad, compact and solid like the original African stock, the other more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Las Vegas Zoo
The Southern Nevada Zoological-Botanical Park, informally known as the Las Vegas Zoo, was a , nonprofit zoo and botanical garden located in Las Vegas, Nevada that operated from 1981 to September 20, 2013. It was located northwest of the Las Vegas Strip, about 15 minutes away. It focused primarily on the education of desert life and habitat protection. Its mission statement was to "educate and entertain the public by displaying a variety of plants and animals". An admission fee was charged. The park included a small gem exhibit area and a small gift shop at the main exit. The gift shop and admission fees helped support the zoo. Background An earlier zoo, the Las Vegas Valley Zoo, opened in 1973, at Las Vegas' Tule Springs Park (later the Floyd R. Lamb State Park). In 1975, the Las Vegas Zoological Society entered a 99-year lease with the city council for 255 acres at Tule Springs. The Las Vegas Valley Zoo, located one mile away on three acres of land, was to relocate to a new, ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Heritage Breed
In modern agriculture, a rare breed is a breed of poultry or livestock that has a very small breeding population, usually from a few hundred to a few thousand. Because of their small numbers, rare breeds may have a threatened conservation status, and they may be protected under regional laws. Many countries have organizations devoted to the protection and promotion of rare breeds, for which they each have their own definition. In botany and horticulture, the parallel to rare animal breeds are heirloom plants, which are rare cultivars. Definitions There are several definitions of "breed" and "rare breed". Breeds may be defined as a group of animals that share visible characteristics, such as Pinto horses, which are all spotted. A stricter definition insists that breeds are "consistent and predictable genetic entities", which means that individuals from that breed will produce offspring that is predictably similar to their genitors, and that this similarity is genetically based. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Gestation
Gestation is the period of development during the carrying of an embryo, and later fetus, inside viviparous animals (the embryo develops within the parent). It is typical for mammals, but also occurs for some non-mammals. Mammals during pregnancy can have one or more gestations at the same time, for example in a multiple birth. The time interval of a gestation is called the '' gestation period''. In obstetrics, '' gestational age'' refers to the time since the onset of the last menses, which on average is fertilization age plus two weeks. Mammals In mammals, pregnancy begins when a zygote (fertilized ovum) implants in the female's uterus and ends once the fetus leaves the uterus during labor or an abortion (whether induced or spontaneous). Humans In humans, pregnancy can be defined clinically, biochemically or biologically. Clinically, pregnancy starts from first day of the mother's last period. Biochemically, pregnancy starts when a woman's human chorionic gonado ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Precocial
Precocial species in birds and mammals are those in which the young are relatively mature and mobile from the moment of birth or hatching. They are normally nidifugous, meaning that they leave the nest shortly after birth or hatching. Altricial species are those in which the young are underdeveloped at the time of birth, but with the aid of their parents mature after birth. These categories form a continuum, without distinct gaps between them. In fish, this often refers to the presence or absence of a stomach: precocial larvae have one at the onset of first feeding whereas altricial fish do not. Depending on the species, the larvae may develop a functional stomach during metamorphosis (gastric) or remain stomachless (agastric). Precociality Precocial young have open eyes, hair or down, large brains, and are immediately mobile and somewhat able to flee from or defend themselves against predators. For example, with ground-nesting birds such as ducks or turkey (bird), turkeys, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Polyestrous
The estrous cycle (, originally ) is a set of recurring physiological changes induced by reproductive hormones in females of mammalian subclass Theria. Estrous cycles start after sexual maturity in females and are interrupted by anestrous phases, otherwise known as "rest" phases, or by pregnancies. Typically, estrous cycles repeat until death. These cycles are widely variable in duration and frequency depending on the species.Bronson, F. H., 1989. Mammalian Reproductive Biology. University of Chicago Press, Chicago, IL, USA. Some animals may display bloody vaginal discharge, often mistaken for menstruation. Many mammals used in commercial agriculture, such as cattle and sheep, may have their estrous cycles artificially controlled with hormonal medications for optimum productivity. The male equivalent, seen primarily in ruminants, is called rut. Differences from the menstrual cycle Mammals share the same reproductive system, including the regulatory hypothalamic system tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Agouti (coloration)
Agouti is a type of fur coloration in which each hair displays two or more bands of pigmentation. The overall appearance of agouti fur is usually gray or dull brown, although dull yellow is also possible. Agouti fur is characterized by an appearance of being composed of hairs of different colors, separate from definite markings (although agouti can appear in combination with other markings, such as spots, stripes or patches). This effect is caused by different ''portions'' of each hair being visible, such that different colors of the hair's banding are seen, despite hairs actually having similar coloration. This effect produces a very distinctive, finely "speckled" appearance similar to "salt and pepper" hair, as well as an iridescent effect very similar to shot silk which causes the overall color to appear to shift subtly depending on the angle of the light or when the animal moves. Agouti fur is the wild type pigmentation for many domesticated mammals. It is a highly re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Breed Standard
In animal husbandry or animal fancy, a breed standard is a description of the characteristics of a hypothetical or ideal example of a breed. The description may include phenotype, physical or morphology (biology), morphological detail, genotype, genetic criteria, or criteria of athletic or productive performance. It may also describe faults or deficiencies that would disqualify an animal from registration or from animal reproduction, reproduction. The hypothetical ideal example may be called a "breed type". Breed standards are devised by breed associations or breed clubs, not by individuals, and are written to reflect the use or purpose of the species and breed of the animal. Breed standards help define the ideal animal of a breed and provide goals for breeders in improving stock. In essence a breed standard is a blueprint for an animal fit for the function it was bred - i.e. herding, tracking etc. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Withers
Withers are the ridge between the shoulder blades of an animal, typically a quadruped. In many species, this ridge is the tallest point of the body. In horses and dogs, it is the standard place to measure the animal's height. In contrast, cattle are often measured to the top of the hips. The term (pronounced ) derives from Old English ''wither'' ("against'), because the withers are the part of a Working_animal#Draft_animals , draft animal that pushes against a Mechanical load, load. Horses The withers in horses are formed by the dorsal spinal processes of roughly the 3rd through 11th thoracic vertebrae, which are unusually long in this area. Most horses have 18 thoracic vertebrae. The processes at the withers can be more than long. Since they do not move relative to the ground as the horse's head does, the withers are used as the measuring point for the height of a horse. Horses are sometimes measured in hand (unit), hands – one hand is . Horse heights are extremely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Angora (goat)
The Angora or Ankara is a Turkish breed of domesticated goat. It produces the lustrous fibre known as mohair. It is widespread in many countries of the world. Many breeds derive from it, among them the Indian Mohair, the Soviet Mohair, the Angora-Don of the Russian Federation and the Pygora in the United States. History The origin of the Angora is not known. The earliest Western description may be that published in 1555 by Pierre Belon, who while travelling from Heraclea to Konya in southern Turkey had seen goats with snow-white "... wool so delicate that one would judge it finer than silk ...". Angora goats were depicted on the reverse of the Turkish 50 lira banknote from 1938 to 1952. In 1960 there were over 6 million Angora goats in Turkey; the population subsequently dropped sharply. In 2004 the total goat population of the country was approximately 7.2 million; of these, just over 5% were of Angora stock, while the remainder were hair goats. A conservation programme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Pygora Goat
The Pygora goat is a breed of goat that originated from crossing the registered NPGA Pygmy goat and the white AAGBA Angora goat. Pygoras, along with the Angora goat and Cashmere goat, are fiber goats (goats bred for their wool). Pygora goats produce three distinct kinds of fleece. History The Pygora was a purposeful cross, bred by Katharine Jorgensen of Oregon City, Oregon. In 1987, the Pygora Breeders Association was formed in the United States, and has since then been registering and promoting Pygoras. Today, the registered Pygora goat may not be more than 75% AAGBA-registered Angora goat or 75% NPGA-registered Pygmy goat. Breed standards First generation (F1) Pygmy-Angora crosses are not considered true Pygoras; however, these may be bred with other Pygora goats, F1 crosses, or back to pure Pygmy or Angora goats to produce true Pygora goats. This may be continued while maintaining the integrity of the breed as long as they have no more than 75% Pygmy or Angora ance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Nubian (goat)
The Anglo-Nubian is a British breed of domestic goat. It originated in the nineteenth century from cross-breeding between native British goats and a mixed population of large lop-eared goats imported from India, the Middle East and North Africa. It is characterised by large, pendulous ears and a convex profile. It has been exported to many parts of the world, and is found in more than sixty countries. In many of them it is known simply as the Nubian. History The Anglo-Nubian breed originated in the British Isles in the nineteenth century from cross-breeding between traditional native prick-eared British goats and a mixed population of large lop-eared goats imported from India, the Middle East and North Africa. Many of these were brought to British shores by steamers of the P & O Steamship Company, which routinely loaded goats on board before starting a homeward voyage from the Orient, so as to have milk and fresh meat available during the voyage. Some of these goats were c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
