University of Port Elizabeth

About: University of Port Elizabeth is a based out in . It is known for research contribution in the topics: Population & Estuary. The organization has 1067 authors who have published 1538 publications receiving 38560 citations. The organization is also known as: UPE & Universiteit van Port Elizabeth.

Traditional Bayes and the Bayesian method of moment analysis for the mixed linear model with an application to animal breeding : theory and methods

Abstract: The Bayesian Method of Moments (BMOM) was introduced by Arnold Zellner in 1994. Given the data it enables researchers to make inverse probability statements about unknown parameters if the form of the likelihood function is unknown. In this paper the theory and results derived by Zellner (l972a) are extended to the mixed linear model. To illustrate the application of the method, data from the Elsenbuig Dormer sheep stud were analysed. A total of 879 weaning weight records, from the progeny of 17 sires were used. The estimates obtained were compared with the traditional Bayes and REML estimates.

Early post-cleavage stages and abnormalities identified in the embryonic development of chokka squid eggs Loligo vulgaris reynaudii

Abstract: Six early, post-cleavage embryonic stages for chokka squid Loligo vulgaris reynaudii eggs that were developed in an aquarium are identified and described, expanding the embryonic stages for this species from 14 to 20. The influence of water temperature on embryonic development is described. At temperatures 15°C, high percentages of morphological abnormalities were observed in embryonic development. Gross forms are described and illustrated.