The Inheritance of Egg Production and Hatchability in Turkeys

Wilson, William; Johnson, Leslie E.

doi:10.3382/ps.0250278

Cited by 21 publications

(10 citation statements)

References 2 publications

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“…It is possible that we may find higher h 2 values if these were based on egg production to 500 days as is usually the case with chickens. The work Wilson and Johnson (1946) also showed considerably higher h 2 value (26 percent) for hatchability than for egg production (2 percent). Meat yield per dam is the combined phenotypic expression of all reproductive traits plus one or two physical factors and therefore considerable interaction may be expected between heredity and environment.…”

Section: Resultsmentioning

confidence: 89%

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Heritability of Some Body Measurements and Reproductive Characters in Turkeys

Kondra

Shoffner

1955

Poultry Science

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Section: Resultsmentioning

confidence: 89%

“…The intra-sire regression method of analysis, used by Wilson and Johnson (1946) obtained heritability estimates (h 2 ) of 2 and 26 percent for egg production and hatchability respectively. Abplanalp and Kosin (1952) made an extensive study of some body measurements in Broad Breasted Bronze (BBB) and Beltsville Small White (BSW) turkeys.…”

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confidence: 99%

Heritability of Some Body Measurements and Reproductive Characters in Turkeys

Kondra

Shoffner

1955

Poultry Science

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“…Wilson and Johnson's (1946) study on hatchability and that of Blow et al (1951) on fertility appear to be the only published works treating the subject of the hereditary aspect of fertility and hatchability in turkeys from the standpoint of population genetics. Wilson and Johnson (1946) have estimated heritability of hatchability in their Broad Breasted Bronze turkeys to be 0.26. This is considerably above the reported corresponding figures in the chicken (Shoffner and Sloan, 1948).…”

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confidence: 97%

Genetic Variation of Fertility and Hatchability in the Broad Breasted Bronze Turkey ,

Abplanalp

Kosin

1953

Poultry Science

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“…Hatchabihty of fertile eggs from the outbred mating of Black turkeys was 81.6% as compared with 91.9% for the Beltsville Small White outbred mating. Wilson and Johnson (1946) in studies with Beltsville Small White, standardbred Bronze, and Broad Breasted Bronze turkeys showed that hatchabihty based on dam-daughter records was highly heritable (heritability value +.26). Their data indicated that, by selecting breeding stock for hatchabihty only-the hens from the highest-hatching 30% of the dams, the toms from the highest-hatching 10% of the dams-hatchabihty could be improved by about 6.5% in the next generation.…”

mentioning

confidence: 96%

Fertility and Hatchability of Eggs from Two Varieties of Turkeys and Their Reciprocal Crosses

Marsden

Olsen

1950

Poultry Science

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C ONSIDERABLE losses occur every season as a result of low fertility and hatchability of eggs among the strains of Broad Breasted Bronze turkeys that now constitute the majority of the turkeys raised in the United States. It is estimated that of each 100 eggs incubated only about 55 poults hatch. If fertility and/or hatchability is inherited, • then more poults can be hatched per 100 eggs set from flocks in which proper selection and breeding are practiced than from those in which little attention is given to those factors. Thus, considerable economic gain would result.The purpose of the present study was to compare crossbred matings with purebreds to determine whether or not efficiency in reproduction might be increased by crossing.A number of investigators have reported on the fertility and hatchability of various strains and varieties of turkeys and on the results of crossing different strains and varieties.Whitson, Marsden, and Titus (1944) found significant differences in fertility and hatchability between Broad Breasted Bronze and three other varieties. The fertility in all cases was determined by candling at 7 days. The eggs of the Broad Breasted Bronze variety were 83.1% fertile; the standardbred Bronze, 94.0%; the White Holland, 96.8%; and the Beltsville Small White, 92.8%. The average hatchability of fertile eggs was, respectively, 48.9, 73.4, 71.9, and 76.0%.Clark, Runnels, and Livesay (1944) reported that the average hatchability of fertile eggs as determined by candling was 8.2% lower in the standardbred Bronze, Broad Breasted Bronze, and standardbred Bourbon Red matings than in reciprocal crosses of these varieties. The authors concluded that the higher hatch of eggs from crossbred matings was due to heterosis. The fertility of the crossbred matings was slightly higher than that of the purebreds, but differences were not statistically significant.Fertility and hatchability in two varieties and their crosses were also studied by Walter and Hoffman (1947). These workers found that fertility was low (56.7%) in a mating of Broad Breasted Bronze, but much higher in matings of Beltsville Small White, Beltsville Small White males X Broad Breasted Bronze females, and Broad Breasted Bronze males X Beltsville Small White females; 82.4, 82.9, and 78.3 percent, respectively. In every case fertility was determined by candling at 7 days. These same workers found no significant differences in the hatchability of fertile eggs between matings of Broad Breasted Bronze, Beltsville Small White, and Beltsville Small White X Broad Breasted Bronze, each mating producing eggs of about 68 percent hatchability. However, a mating of Broad Breasted 548

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The Inheritance of Egg Production and Hatchability in Turkeys

Cited by 21 publications

References 2 publications

Heritability of Some Body Measurements and Reproductive Characters in Turkeys

Heritability of Some Body Measurements and Reproductive Characters in Turkeys

Genetic Variation of Fertility and Hatchability in the Broad Breasted Bronze Turkey ,

Fertility and Hatchability of Eggs from Two Varieties of Turkeys and Their Reciprocal Crosses

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