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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/31052
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | P. K. Malhotra | en_US |
dc.date.accessioned | 2020-01-22T06:36:21Z | - |
dc.date.available | 2020-01-22T06:36:21Z | - |
dc.date.issued | 1974-01-01 | - |
dc.identifier.citation | P. K. Malhotra (1974) , Selection Indices in Poultry, Unpublished Diploma in Agricultural and Animal Husbandry Statistics, IASRI, New Delhi | en_US |
dc.identifier.issn | Not Available | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/31052 | - |
dc.description | Not Available | en_US |
dc.description.abstract | The analysis of data collected under the I.A.R.S.I project entitled “Statistical methodology for developing efficient selection procedure in poultry breeding” from Regional Poultry Farm at Bhopal during the laying periods of 1971 and 1972 was conducted with a view to study the distributions of the scores of birds based on different selection indices. The data was first adjusted for hatch effect. Selection scores were worked for each bird using three methods of selection viz. (a) selection on the bais of an index with optimum weights attached to the individual’s performance and its full-sib family averages, (b) selection on the basis of an the bais of an index with optimum weights attached to the individual’s performance and its half-sib family averages and (c) selection on the sais of an index with optimum weights attached to individual’s performance, full-sib family averages and half-sib family averages. Using these selection scores, the frequency distributions were obtained for the three curves. Suitable distributions were then fitted to the data on scores. It was observed that for the scores based on methods (a) and (b), pearsonian Type I was the appropriate distribution whereas for the scores based on the method (c), a normal distribution was found to be appropriate. It was found that there is tendency in distribution of selection scores to tend to normality as the information from more than two scores are combined. The variability in the scores was also found to increase when information from both the half-sib as well as full-sib families are combined with the individual’s performance. This shows that selection based on the method (c) could be better exploited than those based on either (a) or (b). | en_US |
dc.description.sponsorship | Not Available | en_US |
dc.language.iso | English | en_US |
dc.publisher | ICAR-IASRI (Erstwhile IARS), New Delhi | en_US |
dc.relation.ispartofseries | Not Available; | - |
dc.subject | analysis of variance | en_US |
dc.subject | Half-sib average | en_US |
dc.subject | Full-sib average | en_US |
dc.title | Selection Indices in Poultry | en_US |
dc.title.alternative | Diploma in Agricultural and Animal Husbandry | en_US |
dc.type | Dissertation/Thesis | en_US |
dc.publication.projectcode | Not Available | en_US |
dc.publication.journalname | Not Available | en_US |
dc.publication.volumeno | Not Available | en_US |
dc.publication.pagenumber | 1-52 | en_US |
dc.publication.divisionUnit | Not Available | en_US |
dc.publication.sourceUrl | Not Available | en_US |
dc.publication.authorAffiliation | ICAR::Indian Agricultural Statistics Research Institute | en_US |
dc.ICARdataUseLicence | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf | en_US |
dc.publication.naasrating | Not Available | - |
Appears in Collections: | AEdu-IASRI-Publication AEdu-IASRI-Publication |
Files in This Item:
File | Description | Size | Format | |
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R03480.pdf | 2.5 MB | Adobe PDF | View/Open |
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