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@article{Orheruata_Olutogun_2021, title={Estimates of phenotypic and genetic trends of growth traits in N’dama herd in Nigeria }, volume={29}, url={https://www.njap.org.ng/index.php/njap/article/view/1555}, DOI={10.51791/njap.v29i2.1555}, abstractNote={<p><em><span style="font-weight: 400;">Data </span></em><em><span style="font-weight: 400;">on </span></em><em><span style="font-weight: 400;">birth </span></em><em><span style="font-weight: 400;">weight </span></em><em><span style="font-weight: 400;">(</span></em><em><span style="font-weight: 400;">BTH</span></em><em><span style="font-weight: 400;">WT</span></em><em><span style="font-weight: 400;">)</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">205</span></em><em><span style="font-weight: 400;">-</span></em><em><span style="font-weight: 400;">day </span></em><em><span style="font-weight: 400;">adjusted weaning </span></em><em><span style="font-weight: 400;">weighi </span></em><em><span style="font-weight: 400;">(</span></em><em><span style="font-weight: 400;">ADWNWT</span></em><em><span style="font-weight: 400;">)</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">pre</span></em><em><span style="font-weight: 400;">-</span></em><em><span style="font-weight: 400;">weaning </span></em><em><span style="font-weight: 400;">daily </span></em><em><span style="font-weight: 400;">gain </span></em><em><span style="font-weight: 400;">(</span></em><em><span style="font-weight: 400;">ADG</span></em><em><span style="font-weight: 400;">) </span></em><em><span style="font-weight: 400;">of </span></em><em><span style="font-weight: 400;">N</span></em><em><span style="font-weight: 400;">’</span></em><em><span style="font-weight: 400;">Dama </span></em><em><span style="font-weight: 400;">reared </span></em><em><span style="font-weight: 400;">at </span></em><em><span style="font-weight: 400;">Fasola </span></em><em><span style="font-weight: 400;">Stock </span></em><em><span style="font-weight: 400;">Farm </span></em><em><span style="font-weight: 400;">between </span></em><em><span style="font-weight: 400;">1947 </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">1984 </span></em><span style="font-weight: 400;">w</span><em><span style="font-weight: 400;">ere obtained </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">used </span></em><em><span style="font-weight: 400;">to </span></em><em><span style="font-weight: 400;">estimate </span></em><em><span style="font-weight: 400;">phenotype </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">genetic </span></em><em><span style="font-weight: 400;">trends </span></em><em><span style="font-weight: 400;">of </span></em><em><span style="font-weight: 400;">these </span></em><em><span style="font-weight: 400;">traits</span></em><em><span style="font-weight: 400;">. </span></em><em><span style="font-weight: 400;">Estimated </span></em><em><span style="font-weight: 400;">phenotypic </span></em><em><span style="font-weight: 400;">tr</span></em><strong><em>end </em></strong><strong><em>was </em></strong><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.07</span></em><em><span style="font-weight: 400;">+</span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">02 </span></em><em><span style="font-weight: 400;">kg</span></em><em><span style="font-weight: 400;">/</span></em><em><span style="font-weight: 400;">vr</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">18</span></em><em><span style="font-weight: 400;">-</span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">06kg</span></em><em><span style="font-weight: 400;">/</span></em><em><span style="font-weight: 400;">yr </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">-</span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">005 </span></em><em><span style="font-weight: 400;">+</span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">003kg</span></em><em><span style="font-weight: 400;">/</span></em><em><span style="font-weight: 400;">y</span></em><em><span style="font-weight: 400;">r </span></em><em><span style="font-weight: 400;">for </span></em><em><span style="font-weight: 400;">BT</span></em><em><span style="font-weight: 400;">HWT</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">ADWNWT </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">AD</span></em><em><span style="font-weight: 400;">G </span></em><em><span style="font-weight: 400;">respectively</span></em><em><span style="font-weight: 400;">. </span></em><em><span style="font-weight: 400;">In </span></em><em><span style="font-weight: 400;">contrast</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">all </span></em><em><span style="font-weight: 400;">estimated </span></em><em><span style="font-weight: 400;">genetic </span></em><em><span style="font-weight: 400;">trends </span></em><em><span style="font-weight: 400;">were </span></em><em><span style="font-weight: 400;">relatively </span></em><em><span style="font-weight: 400;">small </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">not </span></em><em><span style="font-weight: 400;">significantly </span></em><em><span style="font-weight: 400;">different </span></em><em><span style="font-weight: 400;">from </span></em><em><span style="font-weight: 400;">zero</span></em><em><span style="font-weight: 400;">. </span></em><em><span style="font-weight: 400;">They </span></em><em><span style="font-weight: 400;">were </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">02</span></em><em><span style="font-weight: 400;">+</span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">05kg</span></em><em><span style="font-weight: 400;">/</span></em><em><span style="font-weight: 400;">yr</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">02</span></em><em><span style="font-weight: 400;">+</span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">05kg</span></em><em><span style="font-weight: 400;">/</span></em><em><span style="font-weight: 400;">yr </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">1g</span></em><em><span style="font-weight: 400;">/</span></em><em><span style="font-weight: 400;">yr </span></em><em><span style="font-weight: 400;">for </span></em><em><span style="font-weight: 400;">BTHWT</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">ADWNW</span></em><em><span style="font-weight: 400;">T </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">ADG </span></em><em><span style="font-weight: 400;">respectively. </span></em><em><span style="font-weight: 400;">The </span></em><em><span style="font-weight: 400;">sequential </span></em><em><span style="font-weight: 400;">polynomial </span></em><em><span style="font-weight: 400;">fitting of the </span></em><em><span style="font-weight: 400;">data </span></em><em><span style="font-weight: 400;">set </span></em><em><span style="font-weight: 400;">indicated </span></em><em><span style="font-weight: 400;">that quadratic </span></em><em><span style="font-weight: 400;">function </span></em><em><span style="font-weight: 400;">adequately </span></em><em><span style="font-weight: 400;">described </span></em><em><span style="font-weight: 400;">the </span></em><em><span style="font-weight: 400;">data with </span></em><em><span style="font-weight: 400;">the </span></em><em><span style="font-weight: 400;">following </span></em><em><span style="font-weight: 400;">regression </span></em><em><span style="font-weight: 400;">equation</span></em><em><span style="font-weight: 400;">: </span></em><span style="font-weight: 400;">Y </span><span style="font-weight: 400;">= </span><em><span style="font-weight: 400;">9</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">91 </span></em><em><span style="font-weight: 400;">+ </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">016 </span></em><span style="font-weight: 400;">+ </span><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">026 </span></em><span style="font-weight: 400;">Y </span><em><span style="font-weight: 400;">= </span></em><em><span style="font-weight: 400;">46</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">44 </span></em><em><span style="font-weight: 400;">- </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">156 </span></em><span style="font-weight: 400;">+ </span><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">0162 </span></em><span style="font-weight: 400;">Y </span><span style="font-weight: 400;">= </span><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">21 </span></em><em><span style="font-weight: 400;">- </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">00025 </span></em><em><span style="font-weight: 400;">+ </span></em><em><span style="font-weight: 400;">1</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">1862 </span></em><em><span style="font-weight: 400;">for </span></em><em><span style="font-weight: 400;">BTH</span></em><em><span style="font-weight: 400;">WT</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">ADWNWT </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">ADG </span></em><em><span style="font-weight: 400;">respectively </span></em><em><span style="font-weight: 400;">for </span></em><em><span style="font-weight: 400;">phenotypic </span></em><em><span style="font-weight: 400;">trend </span></em><em><span style="font-weight: 400;">curve while for </span></em><em><span style="font-weight: 400;">genetic </span></em><em><span style="font-weight: 400;">tre</span></em><strong><em>nd </em></strong><strong><em>curve </em></strong><span style="font-weight: 400;">Y </span><em><span style="font-weight: 400;">= </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">10 </span></em><em><span style="font-weight: 400;">-</span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">016</span></em><em><span style="font-weight: 400;">-</span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">346</span></em><em><span style="font-weight: 400;">’ </span></em><span style="font-weight: 400;">w</span><em><span style="font-weight: 400;">as </span></em><em><span style="font-weight: 400;">obtained </span></em><em><span style="font-weight: 400;">for </span></em><em><span style="font-weight: 400;">BTHWT </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">ADWNWT and </span></em><em><span style="font-weight: 400;">Y </span></em><em><span style="font-weight: 400;">= </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">002 </span></em><em><span style="font-weight: 400;">- </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">00026</span></em><em><span style="font-weight: 400;">’ </span></em><em><span style="font-weight: 400;">- </span></em><em><span style="font-weight: 400;">70</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">85b </span></em><em><span style="font-weight: 400;">f</span></em><em><span style="font-weight: 400;">or </span></em><em><span style="font-weight: 400;">ADG</span></em><em><span style="font-weight: 400;">.</span></em></p>}, number={2}, journal={Nigerian Journal of Animal Production}, author={Orheruata, A. M. and Olutogun , O.}, year={2021}, month={Jan.}, pages={155–162} }