The effects of multiple mating on Þtness in the rice weevil, Sitophilus oryzae L. (Coleoptera: Curculionidae), were studied. In the Þrst of a series of experiments, the impact of multiple mating on female Þtness was determined by evaluating the effects of a single mating period with one male, continuous exposure to one male, and continuous exposure to Þve males. Continuous exposure to one male ...

Litter performance and passive immunity may be affected by dam parity. 1 Summary Preliminary experiments (reported in the 2008 Nebraska Swine Report) suggest that progeny health status may be affected by dam parity. However, the preliminary experiments only included a small population of sows and their progeny. Therefore, the objective of the current experiment was to evaluate litter performanc...

A model was developed for the economic evaluation of embryos for producing bull lines for use in commercial beef production. The fundamental concept underlying the model is that a cloned and sexed embryo of known genetic characteristics for beef traits is used to produce a bull. After reaching physiological maturity, the bull is used in natural matings. Equations relating feed energy requiremen...

An account is given of the behaviour of thoron and its progeny in the indoor environment. Emphasis is placed on the spatial distribution of these radionuclides in room air and on their interactions with indoor aerosols. How these aspects of thoron and progeny behaviour give rise to special problems for measuring them and assessing their radiological impact are described. Descriptions and compar...

The objective of this study was to identify the quantitative trait loci (QTL) affecting carcass traits on chromosome 1 in Japanese quail. The populations comprised of 422 progeny in 9 half-sib families. Phenotypic data on carcass weight, carcass parts, and the internal organs were collected on 422 progeny. Nine half-sib families were genotyped for 8 microsatellite markers covering chromosomes 1...

Estimates of genetic merit are used as both selection and marketing tools and, therefore, should predict the merit of future progeny as accurately as possible. Success depends on having an appropriate model and adequate data. The goal of data editing is to exclude questionable information from genetic evaluations so that the evaluations are as accurate as possible while still remaining represen...

Background: Grass Kebar (Biopytum petersianum Klotzch) is one of Indonesian medicinal plants, which can only be found in Kebar sub-district, Manokwari, Irian Jaya. This plant is mainly used by the community Manokwari to maintain the fertility of women of reproductive organs. This study aims to determine the effect of extract Grass Kebar dose on the fertility of the uterus and the number of prog...