Dairy progeny testing in Finland

Dairy progeny testing in Finland

An account is given of the present method of progeny testing of dairy bulls. Correction factors used are presented and an example of their application given. It is noted that progeny tests for milk yield based on less than 30 daughters have a low repeatability. There were no significant changes in t...

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Bibliographic Details
Main Authors: Ulf Lindström, Kalle Maijala, Mikko Varo
Format: Article
Language:English
Published: Scientific Agricultural Society of Finland 1973-12-01
Series:Agricultural and Food Science
Online Access:https://journal.fi/afs/article/view/72953
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spelling doaj-a088a96d97f34840bab9484e337999b82020-11-25T01:43:16ZengScientific Agricultural Society of FinlandAgricultural and Food Science1459-60671795-18951973-12-01455Dairy progeny testing in FinlandUlf Lindström0Kalle Maijala1Mikko Varo2Agricultural Research Centre, Institute of Animal Breeding, TikkurilaAgricultural Research Centre, Institute of Animal Breeding, TikkurilaUniversity of Helsinki, Department of Animal Breeding, ViikkiAn account is given of the present method of progeny testing of dairy bulls. Correction factors used are presented and an example of their application given. It is noted that progeny tests for milk yield based on less than 30 daughters have a low repeatability. There were no significant changes in the ranking order of AI bulls in different geographical areas. In the Ostrobothnia area, however, the progeny tests seemed to be slightly less accurate than in other regions.https://journal.fi/afs/article/view/72953
collection DOAJ
language English
format Article
sources DOAJ
author Ulf Lindström
Kalle Maijala
Mikko Varo
spellingShingle Ulf Lindström
Kalle Maijala
Mikko Varo
Dairy progeny testing in Finland
Agricultural and Food Science
author_facet Ulf Lindström
Kalle Maijala
Mikko Varo
author_sort Ulf Lindström
title Dairy progeny testing in Finland
title_short Dairy progeny testing in Finland
title_full Dairy progeny testing in Finland
title_fullStr Dairy progeny testing in Finland
title_full_unstemmed Dairy progeny testing in Finland
title_sort dairy progeny testing in finland
publisher Scientific Agricultural Society of Finland
series Agricultural and Food Science
issn 1459-6067
1795-1895
publishDate 1973-12-01
description An account is given of the present method of progeny testing of dairy bulls. Correction factors used are presented and an example of their application given. It is noted that progeny tests for milk yield based on less than 30 daughters have a low repeatability. There were no significant changes in the ranking order of AI bulls in different geographical areas. In the Ostrobothnia area, however, the progeny tests seemed to be slightly less accurate than in other regions.
url https://journal.fi/afs/article/view/72953
work_keys_str_mv AT ulflindstrom dairyprogenytestinginfinland
AT kallemaijala dairyprogenytestinginfinland
AT mikkovaro dairyprogenytestinginfinland
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