Reproduction

Perioperative support reduces mortality of obese BALB/c mice after ovariectomy

The incidence of obesity is on the rise in most western countries and represents major risks to health. Obesity causes complex metabolic dysfunctions and can be associated with a large number of secondary diseases. To investigate causal mechanisms of obesity...

Year Published: 2016Topics: Reproduction, Surgery & Post-OpAnimal Type: Mouse, Rodent

Citation: Mattheis, L., Jung, J.-S., Hiebl, B. et al. 2016. Perioperative support reduces mortality of obese BALB/c mice after ovariectomy. Lab Animal 45(7), 262-267.

Experimental control for the ovariectomized rat model: Use of sham versus nonmanipulated animal

One of 2 models required by the U.S. Food and Drug Administration for registration of a treatment for osteoporosis, the ovariectomized (OVX) rat model, is widely used in scientific studies investigating sex hormone-deficient bone loss. The use of control nonhuman...

Year Published: 2016Topics: Disease/Experimental Model, ReproductionAnimal Type: Rat, Rodent

Citation: Kruger, M. C., Morel, P. C. H. 2016. Experimental control for the ovariectomized rat model: Use of sham versus nonmanipulated animal. Journal of Applied Animal Welfare Science 19(1), 73-80.

Refinements for embryo implantation surgery in the mouse: Comparison of injectable and inhalant anesthesias – tribromoethanol, ketamine and isoflurane – on pregnancy and pup survival

An essential aspect of genetically-engineered mice (GEM) is the ability to produce live animals after the appropriate injection procedure. Animals are produced by implantation of manipulated embryos into pseudopregnant females for gestation, parturition, and growth to the weaning stage. This...

Year Published: 2016Topics: Anesthesia & Sedation, ReproductionAnimal Type: Mouse, Rodent

Citation: Norton, W. B., Scavizzi, F., Smith, C. D. et al. 2016. Refinements for embryo implantation surgery in the mouse: Comparison of injectable and inhalant anesthesias – tribromoethanol, ketamine and isoflurane – on pregnancy and pup survival. Laboratory Animals 50(5), 335-343.

A review of population control methods in captive-housed primates

The success of breeding primates in captivity has led to a surplus number of animals in collections. This review examines published journals and key books to investigate the various methods of primate population control. Hormonal, surgical and separation methods are...

Year Published: 2016Topics: Husbandry & Management, ReproductionAnimal Type: Baboon, Capuchin, Chimpanzee, Lemur, Macaque, Marmoset, Nonhuman Primate, Other Nonhuman Primate, Owl Monkey, Squirrel Monkey, Vervet (African Green Monkey)

Citation: Wallace, P. Y., Asa, C. S., Agnew, M. et al. 2016. A review of population control methods in captive-housed primates. Animal Welfare 25(1), 7-20.

Breeding zebrafish: A review of different methods and a discussion on standardization

In recent years, a rapidly increasing number of scientific papers have been published that utilize zebrafish (Danio rerio) as an alternative model organism in the study of a wide range of biological phenomena from cancer to behavior. This is, in...

Year Published: 2017Topics: Housing, Husbandry & Management, ReproductionAnimal Type: Fish, Zebrafish

Citation: Tsang, B., Zahid, H., Ansari, R. et al. 2017. Breeding zebrafish: A review of different methods and a discussion on standardization. Zebrafish 14(6), 561-573.

The experimental modification of the oestrous cycle in the ferret by different intensities of light irradiations and other methods

With female ferrets subjected to different degrees of intensity of light irradiation as measured by placing them at different distances from a 1000 W. lamp, the acceleration of the oestrous cycle, generally speaking, was correlated with the degree of intensity....

Year Published: 1940Topics: Husbandry & Management, ReproductionAnimal Type: Ferret

Citation: Marshall, F. H. A. 1940. The experimental modification of the oestrous cycle in the ferret by different intensities of light irradiations and other methods. Journal of Experimental Biology 17, 139-147.

Effects of adult social experience on patterns of reproductive activity of socially deprived male rhesus monkeys (Macaca mulatta)

The three [single-caged, socially deprived] male subjects represented examples of severely disturbed animals as witnessed by rates of stereotyped behavior (self-aggression, stereotyped locomotion). The problem under investigation involved the extent to which social group experience as an adult could modify...

Year Published: 1972Topics: Reproduction, Social Housing & CompanionshipAnimal Type: Macaque, Nonhuman Primate

Citation: Missakian, E. A. 1972. Effects of adult social experience on patterns of reproductive activity of socially deprived male rhesus monkeys (Macaca mulatta). Journal of Personality and Social Psychology 21(1), 131-134.

A breeding colony of cotton-top tamarins (Saguinus oedipus)

A breeding colony of cotton-top tamarins is described where 91% of the breeding females are from the first and second laboratory-born generations, and whose infants have a one year survival rate of 62%. Mortality is greatest in the first week...

Year Published: 1985Topics: ReproductionAnimal Type: Nonhuman Primate, Other Nonhuman Primate

Citation: Snowdon, C. T., Savage, A., McConnell, P. B. 1985. A breeding colony of cotton-top tamarins (Saguinus oedipus). Laboratory Animal Science 35, 477-480.

Effects of environmental enrichment on behaviour and reproductivity of growing pigs

Enriching the environment [extra area with peat and a straw hopper; pigs in enriched environments had more than four times the floor space of pigs in barren environments] reduced both the amount of time pigs spent inactive and the time...

Year Published: 1995Topics: Abnormal/Problematic Behavior, Environmental Enrichment, ReproductionAnimal Type: Pig

Citation: Beattie, V. W., Walker, N., Sneddon, I. A. 1995. Effects of environmental enrichment on behaviour and reproductivity of growing pigs. Animal Welfare 4, 207-220.

Improving the laboratory environment for nonhuman primates

Environmental improvements include construction of large indoor cages that allow pairing of experimental animals, a grass-covered 'playground' for breeding chimpanzee groups, and indoor/outdoor group housing for 'retired' experimental animals. In addition, we provide toys, perches, mirrors, and foraging devices, and...

Year Published: 1995Topics: Environmental Enrichment, Housing, Rearing & Weaning, ReproductionAnimal Type: Chimpanzee, Nonhuman Primate

Citation: Brent, L. 1995. Improving the laboratory environment for nonhuman primates. Animal Welfare Institute (AWI) Quarterly 44(1), 14-15.