COMPARISON OF SOME METHODS OF ESTIMATION OF HERITABILITY AND GENETIC GAIN IN GIR CATTLE

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dc.contributor.advisorVaishnav, M. R.
dc.contributor.authorKalawadia, R. L.
dc.date.accessioned2018-05-15T12:31:48Z
dc.date.available2018-05-15T12:31:48Z
dc.date.issued1994
dc.description.abstractThe present investigation was aimed to compare some methods of estimation of heritability and genetic gain in Gir cattle. The data on various characters of Gir cattle were collected for first three consecutive lactations of 475 cows (daughters) of 54 sires, covering the period 1965-1991. Data were subjected to statistical analysis. Heritability for various characters related to first lactation was estimated by paternal half sib correlation and intra-sire regression of daughter on dam methods and that for three lactations by paternal half sib method. The Smith's method was employed to estimate phenotypic gain (trend) for various characters. The genetic gain was estimated by three methods viz., Smith's method I, Smith's method III and Narain and Garg's method. In both the cases the ratio of SE to estimate was used to judge the efficiency of the method.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810046183
dc.keywordsCOMPARISON OF SOME METHODS, ESTIMATION OF HERITABILITY, GENETIC GAIN, GIR CATTLEen_US
dc.language.isoenen_US
dc.publisherAAU, Ananden_US
dc.research.problemCOMPARISON OF SOME METHODS OF ESTIMATION OF HERITABILITY AND GENETIC GAIN IN GIR CATTLEen_US
dc.subAgricultural Statistics and Informaticsen_US
dc.subjectAGRICULTURAL STATISTICS, AGRICULTUREen_US
dc.subjectCOMPARISIONen_US
dc.themeCOMPARISON OF SOME METHODS OF ESTIMATION OF HERITABILITY AND GENETIC GAIN IN GIR CATTLEen_US
dc.these.typePh.Den_US
dc.titleCOMPARISON OF SOME METHODS OF ESTIMATION OF HERITABILITY AND GENETIC GAIN IN GIR CATTLEen_US
dc.typeThesisen_US
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