KRISHI
ICAR RESEARCH DATA REPOSITORY FOR KNOWLEDGE MANAGEMENT
(An Institutional Publication and Data Inventory Repository)
"Not Available": Please do not remove the default option "Not Available" for the fields where metadata information is not available
"1001-01-01": Date not available or not applicable for filling metadata infromation
"1001-01-01": Date not available or not applicable for filling metadata infromation
Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/31052
Title: | Selection Indices in Poultry |
Other Titles: | Diploma in Agricultural and Animal Husbandry |
Authors: | P. K. Malhotra |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Indian Agricultural Statistics Research Institute |
Published/ Complete Date: | 1974-01-01 |
Project Code: | Not Available |
Keywords: | analysis of variance Half-sib average Full-sib average |
Publisher: | ICAR-IASRI (Erstwhile IARS), New Delhi |
Citation: | P. K. Malhotra (1974) , Selection Indices in Poultry, Unpublished Diploma in Agricultural and Animal Husbandry Statistics, IASRI, New Delhi |
Series/Report no.: | Not Available; |
Abstract/Description: | 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). |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Dissertation/Thesis |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Not Available |
NAAS Rating: | Not Available |
Volume No.: | Not Available |
Page Number: | 1-52 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/31052 |
Appears in Collections: | AEdu-IASRI-Publication AEdu-IASRI-Publication |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
R03480.pdf | 2.5 MB | Adobe PDF | View/Open |
Items in KRISHI are protected by copyright, with all rights reserved, unless otherwise indicated.