Breeding Rss feed

The term breeding refers to the mating and production of offspring by animals or other living organisms. It can also refer to the activity of controlling or mediating in the mating and reproduction of organisms. Breeding is also used synonymously with the term reproduction, which is the biological process where new individual organisms—referred to as offspring—are produced from parent organisms. Reproduction is a fundamental and important feature of all known life in the planet, with each individual organism existing as a result of this biological process. There are two types of reproduction: sexual and asexual.

Sexual reproduction often requires two individuals or gametes to be involved in the process. However, asexual reproduction can be more complicated. An individual organism with the capability to reproduce asexually is able to reproduce without the involvement of another individual of the same species. A bacterial has the ability to divide itself into two daughter cells. But asexual reproduction is not limited to single-celled organisms.

For many animals, breeding season is the most suitable season for reproduction. Typically, a breeding season has favorable conditions, as well as abundant food and water, which makes it ideal for wild animals and even birds to procreate. Species that have a breeding season have evolved—through natural means—to have sexual intercourse with other individuals of the same species during a particular time of the year in order to achieve the best chances of reproductive success.

Some species also breed in colonies (or large communities), and this practice is known as communal breeding. With these species, it is common to see large groups of individuals gathering in a particular location.

This section contains scientific information on breeding, a term that refers to the mating and production of offspring by animals or other living organisms.

Prerequisites for recruitment of kittiwakes rissa tridactyla

Porter J.M., 1988: Prerequisites for recruitment of kittiwakes rissa tridactyla. Ibis: 204-215 Observations at the North Shields Kittiwake colony between 1982 and 1984 showed over 100 potential recruits (birds of breeding age) associated with the colony, only about 40% of which were actually recruited. In addition, there were younger birds which visited the colony. The [...]


Preparation and evaluation of mycoplasma gallisepticum bacterin and live vaccines

Lin M.Y., 1986: Preparation and evaluation of mycoplasma gallisepticum bacterin and live vaccines. Journal Of The Chinese Society Of Veterinary Science: 311-322 The preparation cost of the Mycoplasma gallisepticum (Mg) oil emulsion bacterin in this laboratory has been greatly reduced, the bacterin become economically applicable in the breeder or laying chicken. The bacterin had good [...]


Prenatal occurrence and mode of inheritance of neuraxial edema in poll hereford calves

Bowler J.K., 1985: Prenatal occurrence and mode of inheritance of neuraxial edema in poll hereford calves. Research In Veterinary Science: 96-98 Breeding experiments were conducted in 1981, 1982 and 1983 using bulls and cows that were obligatory heterozygotes for neuraxial edema. Of the 56 calves born in the herd, 14 were diagnosed as cases of [...]


Prenatal and postnatal growth of the cape porcupine hystrix africaeaustralis

Van Aarde R.J., 1987: Prenatal and postnatal growth of the cape porcupine hystrix africaeaustralis. Journal Of Zoology (london): 25-34 Pre- and postnatal growth of the Cape porcupine Hystrix africaeaustralis is evaluated by means of the Huggett and Widdas equation, a modification thereof, and the von Bertalanffy equation. Specific foetal growth velocity for the Cape porcupine [...]


Prenatal and lactational transmission of toxocara canis and ancylostoma caninum experimental infection of the bitch before pregnancy

Roberson E.L., 1985: Prenatal and lactational transmission of toxocara canis and ancylostoma caninum experimental infection of the bitch before pregnancy. International Journal For Parasitology: 71-76 Breeding of 5 parasite-free and 5 experimentally infected (6000 T. canis eggs orally and 2500 A. caninum larvae s.c.) beagle bitches was done so that pairs of bitches (1 uninfected, [...]


Preliminary work on monographs of wild plant collections secale l

Knuepffer H., 1987: Preliminary work on monographs of wild plant collections secale l. Kulturpflanze: 35-178 The Gatersleben gene bank holds a large collection of wild rye available for the tasks of breeding research and plant breeding. Problems of maintaining this collection in the gene bank are discussed. In this connection the breeding system is especially [...]


Preliminary survey of populations of the bivalve noahs ark arca noae in the northern adriatic sea

Hrs Brenko M., 1980: Preliminary survey of populations of the bivalve noahs ark arca noae in the northern adriatic sea. Aquaculture: 357-364 Studies were conducted at several stations on the west coast of the Istra peninsula in 1966, 1970, 1977 and 1978 to determine population structure of the edible bivalve A. noae after the catastrophic [...]


Preliminary study on evolution of the breeding status of laridae and sternidae in valli comacchio italy camargue france

Isenmann P., 1981: Preliminary study on evolution of the breeding status of laridae and sternidae in valli comacchio italy camargue france. Rivista Italiana Di Ornitologia4: 133-161 A comparative study on the population of Laridae and Sternidae (excluding Chlidonias hydrida) breeding in Valli di Comacchio (Emilia Romagna) and Camargue (southern France) is presented. The species considered [...]


Preliminary study of self incompatibility of 24 collections of brassica campestris cultivar toria from bangladesh

Zuberi S., 1981: Preliminary study of self incompatibility of 24 collections of brassica campestris cultivar toria from bangladesh. Bangladesh Journal Of Botany: 187-194 Incompatibility reaction after self-pollination of 24 collections of B. campestris L. cv. Toria was assessed by determining the pollen tube growth on stigma and comparing the number of seeds produced per fruit. [...]


Preliminary study for obtaining a medicago sativa variety to be used for the dehydration and adapted to central italy

Veronesi F., 1980: Preliminary study for obtaining a medicago sativa variety to be used for the dehydration and adapted to central italy. Genetica Agraria4: 355-374 From 1971-1975 3 M. sativa Italian varieties and 4 M. sativa umbrian ecotypes were compared in an agronomical trial. The types are characterized by different growth rhythms and different yield [...]