Semantic Scholar is a free, AI-powered research tool for scientific literature, based at the Allen Institute for AI. 0000010388 00000 n 0000423118 00000 n 0000005488 00000 n 0000020560 00000 n 0000005027 00000 n 1934). 0000004529 00000 n 0000421314 00000 n Commercial application of marker- and gene-assisted selection in livestock: strategies and lessons. ,� ASAS presents this material only for "fair use" educational purposes. This explains the enormous influence of statistical procedures and, in particular, of Henderson’s methods, where the sole genetic input was the matrix A, defined earlier. ��@�.���!h�����U��� �E5,&�((����"l��������j�D�S�Ӑ43�!�����8%%e���e pc��� �M�8 ASAS has no responsibility for the content made available on Youtube. *qYٔ�.ӇІc�M9߲uDA��.$\n^c.������(�9���jdf���#���U���T�������ݘφm�T�"�ص��18a��X�*L��z�s=�SYoל?�)��RK��nY���ׇ��g1���DL���XxQK��di����q�9_Wa��bb_��1�g��� E��SI�m�]�l)BĆ)Ѥ't�]�Lw�zU��PF���H��RV����~�2Y0��מ�}�=��E4��z�iP���Z�#� ��N Thanks to these advantages, GS is now routinely implemented in advanced animal breeding programs of different livestock species such as cattle, pigs and sheep [5-7]. 0000003380 00000 n h�b```f``=���� 2�A���b�,GN04�00p04�?��9�����>�?B;��m���7�H%1w;T�``h[��O"���d��8|@ē�Y@^,�P������~�V+��q��d|��P�\���A �͜��c����GF�s��B��b��_����ޚ�yE�S�`�A6Q��Mi^ 0000423937 00000 n 0000423743 00000 n 0000422545 00000 n animal breeding, economic traits and their standardization, genetic parameters and their estimation ,response to selection including computation of selection differential, genera- 0000013921 00000 n pw���vL) 1527IK�L�NK�I��e�!�#6����W?�Y��7��&�������^����d`���*�2�3J-- t�L�2K�K�Rssr�j��R�S��RS�0�Z����t C.�ߏ?�V�.���6��hk�����&̞���k{f���ƪ��BɆ¶�D)���1�~�g�S���h=�� sg�~�ｚ��,��7�ڰGn��]KKϛ���UJ?%EgN�6u��ԩ3&̒�9��q���� �R5mu��r���m��5u�6�7Nm�1KʺY��PyCMeS�dcQ{v2�I�G�����t�N�3rAn�r��Lb7N[#�q�몥��Z��Z�Zj�8� �D�9 Some features of the site may not work correctly. trailer 0000003343 00000 n 0000000016 00000 n Biotechnology is an important branch of animal breeding and genetics. For example, when domesticating the wolf to generate the different dog breeds, parents were selected based on temperament. Until recently, quantitative genetics as applied to animal breeding was essentially a gene-less science. 0000003135 00000 n 0000010093 00000 n ޱu������0�������a �! This paper discusses the use of genetic engineering applications in animal breeding, including a description of the methods, their potential and current uses and ethical issues. Because today’s chickens grow faster and more efficiently, poultry producers can produce more chicken, using less feed and in a shorter amount of time. 0000002738 00000 n 0000015836 00000 n You may access Youtube's Terms of Use at, Comparing agriculture of the past with today, Environmental impact of animal production, Growth promotant use in animal production. 0000007538 00000 n 0000403824 00000 n Theory and Application of Genome-Based Approaches to Improve the Quality and Value of Beef, Multifactorial genetics: The use of molecular genetics in the improvement of agricultural populations, Views on the potential impact of cloning on animal breeding and production, Cloning Adult Farm Animals: A Review of the Possibilities and Problems Associated with Somatic Cell Nuclear Transfer, American journal of reproductive immunology, By clicking accept or continuing to use the site, you agree to the terms outlined in our. endstream endobj 152 0 obj <> endobj 153 0 obj <> endobj 154 0 obj <> endobj 155 0 obj <>stream Improvements in poultry breeding have generated chickens that produce more meat for human consumption. 0000012945 00000 n 0000002416 00000 n Genetic engineering applications in animal breeding 158 NHGRI, 2001; Coutelle and Rodeck, 2002). �w�B�c�����S�����J0ۈ�?�� &Ѩ����o�x&��KI����XLA�`��bG4�Ϣ�B��)�c�mC ��[0 ���0���P�n�� <]/Prev 573323>> Important applications of genetic engineering in animal breeding are: 1) Marker-assisted selection (MAS). 0000002875 00000 n 0 Yڒ����mN�[I*�F�Ė��M�a�g��_��fӥ�]J��GNnk1��#�Jwe$C�\Z�>��V�����2��Á�y�a��N��:�@SQu/��%�P��F����.��*�grq���0G���y��Zu*�mE�KnP$�1[ �6Jl%�}_�uZ�k �N@>$:�h�L breeding, and determining the connexion between phenotypic and geno-typic variability.-To become familiar with the different types of molecular markers most used in animal genetic studies.-To understand the main applications of molecular markers in genotype identification, location of genes of interest and analysis of quantitative Genetic evaluation of individual animals in a breeding population, selection of the best individuals for traits of importance in some sense (adaptation, production, economic), followed by mating of selected individuals to generate the next generation of animals. Genetic engineering is the name of a group of techniques used to identify, replicate, modify and transfer the genetic material of cells, tissues or complete organisms. xref 0000012751 00000 n Since animals were first domesticated, animal breeders have been using selective breeding to determine which animals will become parents of the next generation. 131 0 obj <> endobj endstream endobj 156 0 obj <> endobj 157 0 obj <>stream 0000414625 00000 n Once an animal is born with a good trait, that trait can be passed to the next generation. endstream endobj 147 0 obj <> endobj 148 0 obj <> endobj 149 0 obj <> endobj 150 0 obj <> endobj 151 0 obj <>stream 0000006788 00000 n You are currently offline. 0000001396 00000 n Due in large part to genetic selection, broiler body weight at eight-weeks of age has increased from 1.8 pounds to 6.9 pounds. Initially, this decision was based on the animals’ appearances. h�T�=o� �w~�ǫ:ҡK�ЫN��5��8)Rc�C���]����V��2�ö$�{t��9�$��pz�o�@��C�4��>�r`Xc��)AZ��Q�㋉�fF�������V_탃�%�lhB���yЀ���D{%.��6,�����բ寴��^Q:��nb�ʜu�ݫ�"���C,s�� ��j� Although animal breeding was practiced long before the science of genetics and the relevant disciplines of population and quantitative genetics were known, breeding programs have mainly relied on simply selecting and mating the best individuals on their own or relatives’ performance. This paper discusses the use of genetic engineering applications in animal breeding, including a description of the methods, their potential and current uses and ethical issues. As scientific understanding of genetics improved, it became clear that animals inherit traits from their parents. startxref 0000422024 00000 n 0000016851 00000 n 0000014559 00000 n 185 0 obj <>stream 0000003817 00000 n 0000422746 00000 n A good example of genetic improvement is in poultry breeding. 0000009887 00000 n 0000002501 00000 n More productive chickens means more meat in the supermarket. The process of selecting animals based on their genetics has helped advance agricultural productivity over the past 50 years. 0000017580 00000 n He saw the need to obtain estimates of parameters such as the her-itability free of confounding by environmental covariances and proposed using daughter dam within sire regression to Since animals were first domesticated, animal breeders have been using selective breeding to determine which animals will become parents of the next generation.
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