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The Effect Of Heterosis On Reproductive And Preweaning Traits In Crosses Of Three British Breeds Of Beef Cattle
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Book Synopsis The Effect of Heterosis on Reproductive and Preweaning Traits in Crosses of Three British Breeds of Beef Cattle by : John Julius Dingfelder
Download or read book The Effect of Heterosis on Reproductive and Preweaning Traits in Crosses of Three British Breeds of Beef Cattle written by John Julius Dingfelder and published by . This book was released on 1979 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heterosis in Crossbreeding British Beef Breeds by : Jean Marie Hagerbaumer
Download or read book Heterosis in Crossbreeding British Beef Breeds written by Jean Marie Hagerbaumer and published by . This book was released on 1975 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crossbreeding Systems for Beef Cattle by : Peter T. Anderson
Download or read book Crossbreeding Systems for Beef Cattle written by Peter T. Anderson and published by . This book was released on 1990 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heterosis from Crosses Among British Breeds of Beef Cattle by : J. A. Gaines
Download or read book Heterosis from Crosses Among British Breeds of Beef Cattle written by J. A. Gaines and published by . This book was released on 1985 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Animal Science written by and published by . This book was released on 1991 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Abstracts - American Society of Animal Science by :
Download or read book Abstracts - American Society of Animal Science written by and published by . This book was released on 1985 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Consists of abstracts of papers presented at the national and sectional meetings of the American Society of Animal Science.
Book Synopsis Heterosis and Heterosis Retention for Reproductive and Maternal Traits in Nellore-Angus Crossbred Cows by : Mohammad Diya Talal Hamed Obeidat
Download or read book Heterosis and Heterosis Retention for Reproductive and Maternal Traits in Nellore-Angus Crossbred Cows written by Mohammad Diya Talal Hamed Obeidat and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Calving rate, weaning rate, birth weight, weaning weight, and ADG from 1997 to 2011 were investigated in Angus, Nellore, F_(1) Nellore-Angus, first generation 3/8 Nellore 5/8 Angus produced as following: (1/2 Nellore 1/2 Angus sires and 3/4 Angus 1/4 Nellore dams, 3/4 Angus 1/4 Nellore sires and 1/2 Angus 1/2 Nellore dams, and 3/4 Nellore 1/4 Angus sires and Angus dams), and second generation 3/8 Nellore 5/8 Angus cows. The objectives were to estimate heterosis in Nellore-Angus crosses for cow reproductive traits and maternal effects on traits of their calves. The F_(1) cows expressed 0.20 ± 0.02 heterosis for calving rate, while both first and second generation 3/8 Nellore 5/8 Angus expressed 0.13 ± 0.02. the first generation 3/8 Nellore 5/8 Angus produced out of 3/4 Angus 1/4 Nellore sires and 1/2 Nellore 1/2 Angus dams expressed 0.14 ± 0.03 heterosis for calving rate. The F1 Nellore-Angus expressed 0.23 ± 0.03 heterosis for weaning rate and the 3/8 Nellore 5/8 Angus produced out of 3/4 Angus 1/4 Nellore sires × 1/2 Nellore 1/2 Angus dams and the second generation 3/8 Nellore 5/8 Angus expressed 0.14 ± 0.07 and 0.15 ± 0.05, respectively. No heterosis was expressed for birth weight in any breedtype group. Multiple attempts to analyze weaning weight and ADG and estimate heterosis resulted in excessive adjustments to least squares means. Young and oldest cows weaned lighter calves than others. F_(1) cows weaned heavier calves at most ages. Nellore-sired F_(1) calves were heavier at weaning than the reciprocal cross. Calves out of cows of intermediate ages had larger preweaning ADG than calves born to 2- and 3-yr-old and to aged cows. Generally, calves out of F_(1) Nellore-Angus cows had larger ADG than those out of cows of other breedtypes. Nellore-sired F_(1) heifers had lower ADG than Angus-sired F_(1) heifers. In general, bull calves had larger ADG than heifers. Non-F_(1) crossbred cows expressed slightly larger heterosis than what would be expected by the dominance model. Heterosis expressed by second generation 3/8 Nellore 5/8 Angus for calving and weaning rate did not appear to differ from the first generation. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/151235
Book Synopsis Heterosis in Preweaning and Weaning Traits Among Crosses of the Hereford, Angus, and Charolais Breeds by : Diedrich Reimer
Download or read book Heterosis in Preweaning and Weaning Traits Among Crosses of the Hereford, Angus, and Charolais Breeds written by Diedrich Reimer and published by . This book was released on 1971 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Service General Technical Report SO. by :
Download or read book Forest Service General Technical Report SO. written by and published by . This book was released on 1973 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heterosis from Crosses Among British Breeds of Beef Cattle by : Elizabeth Anne Tolley
Download or read book Heterosis from Crosses Among British Breeds of Beef Cattle written by Elizabeth Anne Tolley and published by . This book was released on 1972 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beef Cattle Production Systems by : Andy D. Herring
Download or read book Beef Cattle Production Systems written by Andy D. Herring and published by CABI. This book was released on 2014-10-24 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook provides an integrated view of beef cattle production with a systems based approach, discussing the interrelationships of a broad range of aspects with the overall goal of optimising cattle production. This book provides the background to allow cattle producers to match their production environments with genetic, management, and marketing opportunities for sustainable beef production globally. This logic and resulting considerations can then be tailored to address specific regional challenges and opportunities worldwide. Considerations and examples for extreme situations will be provided, such as very small herds, very large herds, communal-group situations, and minimal artificial input systems.
Download or read book Research Extension Series written by and published by . This book was released on 1987 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulated Index Medicus written by and published by . This book was released on 1985 with total page 1160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by and published by . This book was released on 1987 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin (University of Arkansas (Fayetteville Campus). Agricultural Experiment Station). by :
Download or read book Bulletin (University of Arkansas (Fayetteville Campus). Agricultural Experiment Station). written by and published by . This book was released on 1986 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Bulletin written by and published by . This book was released on 1967 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
