Raça de galinha "P P P P" (Pescoço Pelado Preta Piracicaba) III - Efeitos da consanguinidade

Graner, E. A.; Torres, A. P.

doi:10.1590/S0071-12761950000100007

Resumo

Four years of inbreeding and its effects on fertility, hatchability, viability and egg production in the new bred "PPPP" (Pescoço Pelado Preta Piracicaba) (naked neck and black plumage, Piracicaba) were reported in this paper. It was observed a decrease in fertility, hatchability, viability and egg production as the inbreeding increases. The black plumage naked neck homozygozous chickens are now submitted to a system of uncontrolled mating in the hope that the natural selection will reduce some of the undesirable factors providing abundant material for pedigree control.

Raça de galinha "P P P P" (Pescoço Pelado Preta Piracicaba) III - Efeitos da consanguinidade^*

E. A. Graner; A. P. Torres

Escola Superior de Agricultura "Luiz de Queiroz" Universidade de São Paulo

ABSTRACT

Four years of inbreeding and its effects on fertility, hatchability, viability and egg production in the new bred "PPPP" (Pescoço Pelado Preta Piracicaba) (naked neck and black plumage, Piracicaba) were reported in this paper.

It was observed a decrease in fertility, hatchability, viability and egg production as the inbreeding increases.

The black plumage naked neck homozygozous chickens are now submitted to a system of uncontrolled mating in the hope that the natural selection will reduce some of the undesirable factors providing abundant material for pedigree control.

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BIBLIOGRAFIA

Referências bibliográficas

1 - BYERLY, T., C. W. KNOX and M. A. JULL (1934). Some Genetic Aspects of Hatchability. Poultry Science 3'230-238
2 -CURTIS, V. and W. V. LAMBERT (1928). A Study of Fertility in Poultry. Poultry Science 8:142-150.
3 - GRANER, E. A. e A. P. TORRES (1949). Raça de galinhas "Piracicaba". II. - "Pedigree" das aves puras para os caracteres Pescoço Pelado e Plumagem Preta. Anais da Escola Superior de Agricultura "Luiz de Queiroz". 6:83-89.
4 -GOWE, R. S. and F. B. HUTT (1949). Studies of Genetic Infertility in the Fowl. Poultry Science 764-765.
5 -HAYS, F. A. (1947). Viability and Fertility in Females. Poultry Science 26:542.
6 -HAYS, F. A. (1948) Viability and Fertility in Rhode Island Red Females. Poultry Science 27:186-193.
7 -HAYS, F. A. (1950). Is Fertility in Domestic Fowl Regulated by Inheritance? Poultry Science 29:171-175.
8 -JULL, M. A. (1926). Selective Fertilization in Fowls. Poultry Science 6:201-214.
9 - JULL, M. A. (1928). Studies in Hatchability. I. - Hatchability in Relation to Antecedent Egg Production, Fertility and Chick Mortality. Poultry Science 7:195-215.
10 -JULL, M. A. (1929). Studies in Hatchability. II. - Hatchability in Relation to the Consanguinity of the Breeding Stock. Poultry Science 8:219-229.
11 -JULL, M. A. (1929). Studies in Hatchability. Ill -Hatchability in Relation to Coefficients of Inbreeding.Poultry Science 8:361-368.
12 -JULL, M. A. (1930). Studies in Hatchability. IV -The Effect of Intercrossing Inbred Strains of Chicken on Fertility and Hatchability. Poultry Science 9:149-156.
13 - JULL, M. A. (1935). Studies in Fertility in the Domestic Fowl. Poultry Science 14:37-41.
14 -JULL, M. A. (1938). Poultry Husbandry. Mc-Graw-Hill Book Co. Inc., New York and London.
15 -JULL, M. A. (1940). Poultry Breeding. John Wiley & Sons Inc., London.
16 -SHOFFNER, R. N. (1948). The Variation Within an Inbred Line of S. C. W. Leghorns. Poultry Science 27:235-236.
17 -SHOFFNER, R. N. (1948). Performance of "Incrosses" Among Lines of Leghorns. Poultry Science 27:683.
18 -STURKIE, P. D. (1943). Five Years of Selection for Viability in White Leghorn Chickens. Poultry Science 22:155-160.
19 - TORRES, A. P. (1947). Melhoramento dos Rebanhos. Comp. Melhoramentos de S. Paulo.
20 -TORRES, A. P. e E. A. GRANER (1947). Raça de galinhas "Piracicaba". I - Hereditariedade dos caracteres Pescoço Pelado e Plumagem Preta. Anais da Escola Superior de Agricultura "Luiz de Queiroz" 4:85-93.
21 -WARREN, D. C. (1927). Hybrid Vigor in Poultry. Poultry Science 7:1-8.
22 -WATERS, N. F. (1945). The influence of Inbreeding on Hatchability. Poultry Science 24:329-334.
23 -WILSON, W. O. (1948). Egg Production and Fertility in Inbred Chickens. Poultry Science 27:719-726.
24 -WILSON, W. O. (1948). Viability of Embryos and of Chicks in Inbred Chickens. Poultry Science 27:727-735.
25 -WINTER, A. R. and E. M. FUNK (1941). Poultry Science and Practice. J. B. Lippincott & Co., New York.

*

Trabalho da Seção de Avicultura.

Datas de Publicação

Publicação nesta coleção
06 Nov 2012
Data do Fascículo
1950

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

[1] 1 - BYERLY, T., C. W. KNOX and M. A. JULL (1934). Some Genetic Aspects of Hatchability. Poultry Science 3'230-238

[2] 2 -CURTIS, V. and W. V. LAMBERT (1928). A Study of Fertility in Poultry. Poultry Science 8:142-150.

[3] 3 - GRANER, E. A. e A. P. TORRES (1949). Raça de galinhas "Piracicaba". II. - "Pedigree" das aves puras para os caracteres Pescoço Pelado e Plumagem Preta. Anais da Escola Superior de Agricultura "Luiz de Queiroz". 6:83-89.

[4] 4 -GOWE, R. S. and F. B. HUTT (1949). Studies of Genetic Infertility in the Fowl. Poultry Science 764-765.

[5] 5 -HAYS, F. A. (1947). Viability and Fertility in Females. Poultry Science 26:542.

[6] 6 -HAYS, F. A. (1948) Viability and Fertility in Rhode Island Red Females. Poultry Science 27:186-193.

[7] 7 -HAYS, F. A. (1950). Is Fertility in Domestic Fowl Regulated by Inheritance? Poultry Science 29:171-175.

[8] 8 -JULL, M. A. (1926). Selective Fertilization in Fowls. Poultry Science 6:201-214.

[9] 9 - JULL, M. A. (1928). Studies in Hatchability. I. - Hatchability in Relation to Antecedent Egg Production, Fertility and Chick Mortality. Poultry Science 7:195-215.

[10] 10 -JULL, M. A. (1929). Studies in Hatchability. II. - Hatchability in Relation to the Consanguinity of the Breeding Stock. Poultry Science 8:219-229.

[11] 11 -JULL, M. A. (1929). Studies in Hatchability. Ill -Hatchability in Relation to Coefficients of Inbreeding.Poultry Science 8:361-368.

[12] 12 -JULL, M. A. (1930). Studies in Hatchability. IV -The Effect of Intercrossing Inbred Strains of Chicken on Fertility and Hatchability. Poultry Science 9:149-156.

[13] 13 - JULL, M. A. (1935). Studies in Fertility in the Domestic Fowl. Poultry Science 14:37-41.

[14] 14 -JULL, M. A. (1938). Poultry Husbandry. Mc-Graw-Hill Book Co. Inc., New York and London.

[15] 15 -JULL, M. A. (1940). Poultry Breeding. John Wiley & Sons Inc., London.

[16] 16 -SHOFFNER, R. N. (1948). The Variation Within an Inbred Line of S. C. W. Leghorns. Poultry Science 27:235-236.

[17] 17 -SHOFFNER, R. N. (1948). Performance of "Incrosses" Among Lines of Leghorns. Poultry Science 27:683.

[18] 18 -STURKIE, P. D. (1943). Five Years of Selection for Viability in White Leghorn Chickens. Poultry Science 22:155-160.

[19] 19 - TORRES, A. P. (1947). Melhoramento dos Rebanhos. Comp. Melhoramentos de S. Paulo.

[20] 20 -TORRES, A. P. e E. A. GRANER (1947). Raça de galinhas "Piracicaba". I - Hereditariedade dos caracteres Pescoço Pelado e Plumagem Preta. Anais da Escola Superior de Agricultura "Luiz de Queiroz" 4:85-93.

[21] 21 -WARREN, D. C. (1927). Hybrid Vigor in Poultry. Poultry Science 7:1-8.

[22] 22 -WATERS, N. F. (1945). The influence of Inbreeding on Hatchability. Poultry Science 24:329-334.

[23] 23 -WILSON, W. O. (1948). Egg Production and Fertility in Inbred Chickens. Poultry Science 27:719-726.

[24] 24 -WILSON, W. O. (1948). Viability of Embryos and of Chicks in Inbred Chickens. Poultry Science 27:727-735.

[25] 25 -WINTER, A. R. and E. M. FUNK (1941). Poultry Science and Practice. J. B. Lippincott & Co., New York.