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Full-Text Articles in Animal Sciences
Applications Of Transposable Elements In Fish For Transgenesis And Functional Genomics, Perry B. Hackett, Karl J. Clark, Stephen C. Ekker, Jeffrey J. Essner
Applications Of Transposable Elements In Fish For Transgenesis And Functional Genomics, Perry B. Hackett, Karl J. Clark, Stephen C. Ekker, Jeffrey J. Essner
Jeffrey J. Essner
Transgenic fish were first made more than 30 years ago. Since then a variety of methods and const ructs have been tested for introducing genetic sequences into fish for scientitlc investigations as well as commercial purposes. Here we review transposable clements and t heir applications in fish. Transposons can be used to deliver genes to chromosomes to confer new traits or as insertional agents and traps to uncover the functions and expression patterns of natural genes in chromosomes. Two DNA transposons have been characterized for transposon-based gene transfer and insertional mutagenesis. The t1rst is d1e Sleeping Beauty transposon system that …
Review: Compilation Of The Scientific Literature Comparing Housing Systems For Gestating Sows And Gilts Using Measures Of Physiology, Behavior, Performance, And Health, Anna K. Johnson, J. J. Mcglone, E. H. Von Borell, J. Deen, D. G. Levis, M. Meunier-Salaun, J. Morrow, D. Reeves, J. L. Salak-Johnson, P. L. Sundberg
Review: Compilation Of The Scientific Literature Comparing Housing Systems For Gestating Sows And Gilts Using Measures Of Physiology, Behavior, Performance, And Health, Anna K. Johnson, J. J. Mcglone, E. H. Von Borell, J. Deen, D. G. Levis, M. Meunier-Salaun, J. Morrow, D. Reeves, J. L. Salak-Johnson, P. L. Sundberg
Anna K. Butters-Johnson
The objective of this review was two-fold. First, a series of meta-analyses (analyses of treatment effects across studies) were performed on available data from scientific literature to determine whether sow behavior, performance, or physiology differed for sows in group pens or individual stalls. Second, research publications in areas of performance and health, physiology, and behavior of pregnant gilts and sows in studies that directly compared gestation sow housing systems were summarized. Common systems were stalls, tethers, and various types of group housing systems. Results of meta-analyses showed that the average levels of productivity, oral-nasal-facial behaviors (ONF), and blood cortisol were …