Echolotmessungen als Hilfsmittel für die Zuchtwertschätzung beim Schwein: 2. Mitteilung

Rittler, A.

doi:10.1111/j.1439-0388.1967.tb01107.x

Zeitschrift für Tierzüchtung und Züchtungsbiologie

1967

DOI: 10.1111/j.1439-0388.1967.tb01107.x

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Echolotmessungen als Hilfsmittel für die Zuchtwertschätzung beim Schwein: 2. Mitteilung

A. Rittler

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1968

1977

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Cited by 5 publications

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Genetic and phenotypic parameters in performance-tested pigs

1977

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SUMMARYData were available from 11 474 gilts performance-tested on 137 farms. The data were analysed to provide pooled within-farm sire component estimates of h2 and genetic correlations.Estimates of h2 of 0·43 ± 0·10, 0·44 + 0·09 and 0·49 ±009 were obtained for weight for age, C + K and shoulder fat depths respectively in 3583 gilts in 49 Large White herds. Comparable Landrace values derived from 2810 gilts in 43 herds were 0·44 + 0·11, 0·40 ±0·10 and 0·51 ±0·12 respectively. Estimates were consistent from herd to herd.Estimates of h2 made on data from 5081 crossbred pigs, of mainly Large White and Landrace parentage, varied with herd from 0·10 to 0·40 for weight for age and from 0·08 to 0·96 for shoulder fat depth. Significant differences between breeds were found for the genetic correlations between weight for age and the fat depths, and between shoulder and mid-backfat depths. The variance was partitioned into various components. For index score, the within-herd variance averaged 73% of the total variance.

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Genetic and phenotypic parameters in performance-tested pigs

1977

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Echolotmessungen als Hilfsmittel für die Zuchtwertschätzung beim Schwein 3. Mitteilung Abschätzung des Fleisch‐ und Fettanteiles auf Grund von Echolotmessungen am lebenden Schwein

Rittler

1968

Zeitschrift für Tierzüchtung und Züchtungsbiologie

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Beziehungen zwischen der Eigenleistung von Jungebern und den Prüfungsergebnissen ihrer Vollgeschwister und Nachkommen

Flock

Schutzbar

Lauprecht

1969

Zeitschrift für Tierzüchtung und Züchtungsbiologie

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Echolotmessungen als Hilfsmittel für die Zuchtwertschätzung beim Schwein: 2. Mitteilung

Cited by 5 publications

References 2 publications

Genetic and phenotypic parameters in performance-tested pigs

Genetic and phenotypic parameters in performance-tested pigs

Echolotmessungen als Hilfsmittel für die Zuchtwertschätzung beim Schwein 3. Mitteilung Abschätzung des Fleisch‐ und Fettanteiles auf Grund von Echolotmessungen am lebenden Schwein

Beziehungen zwischen der Eigenleistung von Jungebern und den Prüfungsergebnissen ihrer Vollgeschwister und Nachkommen

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