Ile de France IF x Akkaraman AK G1 Erkek Kuzularının Testis Özellikleri ile Besi ve Karkas Özellikleri Arasındaki Fenotipik Korelasyonlar

Bu araşt ı rma, Ile de France IF x Akkaraman AK G1 erkek kuzularda gerçekle ştirilmiştir. Araşt ı rmada, kesimden önce ve sonra saptanan testis özellikleri ile besi ve karkas özellikleri aras ı ndaki fenotipik korelasyonlar belirlenmiştir. Söz konusu özellikler aras ı ndaki fenotipik korelasyonlar genel olarak yüksek ve önemlidirler p

Anahtar Kelimeler:

erkek kuzu, testis özellikleri, besi ve karkas özellikleri, fenotipik korelasyonlar

Phenotypic Correlations Between Testes, Fattening and Carcass Characteristics of Ile de France IF x Akkaraman AK Bi Male Lambs

This research was carried out with 74 of Ile de France IF x white Karaman WK B1 male lambs. In the research, phenotypic correlations between testes characteristics determining before and after slauhgtering with fattening and carcass characteristics were determined. Phenotypic correlations among these characteristics were high and signifı cant p

Keywords:

male lamb, testes characteristics, fattening and carcass characteristics, phenotypic correlations,

PDF

___

Anastasijevic, V., S, Josipovic, 1989. The relationship of testis development with performance in Pigs. Stocarstvo, 43, 3-4, 103-102.
Ayyat, M. S., M. R. Anous and M. H. Sadek, 1994. Genetic parameters for meat production in rabbits. I. Non-carcass components. World- Pabbit- Sci., 2, 3, 93-99.
Cary, N. C. 1988. SAS User's Guide Statistics. SAS Inst. Gojjam, Y., S. Gizaw, S. Abegaz and C. J. Thwaites, 1995. Relationships between body weight and scrotal characteristics and between environmental effects and fertility in Ethiopian horro rams. Agric. Sci., 124, 2, 297-299.
Hafez, E. S. E. 1993. Reprodudion ı n Farm Animals. Lea and Febiger. Philadelphia. 6 thEdition.
Hopkins, D. L. 1990. Relationship between testicular weight and fatness in short scrotum lambs. Wool Tech. and Sheep Breeding, 38, 3-4,104-105.
Knight, T. W. 1977. Methods for the indrect estimation of testes weight and sperm numbers in merino and romney rams. New Zeland of Agric. Res., 20, 291-297.
Lee, G. J., C. S. Haley, 1990. Body weight adjusted testis size as a selection criteion to improve production efficency in sheep. Proceedings of the 4thWorld Congress on Genetics Applied to Livestock Production. Edinburg, 23-27 July.
Lubritz, D., B. Johnson and O. W. Robinson, 1991. Genetic paramaters for testerone production boars. J. of Animal Sci., 69 (8) 3220-3224.
Martinez, M. A., U. T. Meulen and U. Meulen.1993. Evaluation of the performance of simmental bulls calves in Mexico. Tropenlandwirt, 94, 61-67.
Owsianny, J. 1996. Size of testes in young boars as a criterion for evaluation of their reproductive value and fecundity of their sisters. Rozprwy Akademia- Roinicza-w-Szcecinse. No:176.
Pena, F., Domenech, V., Aparicio, F. D, Mendez. 1989. Carcass characters in squrena lambs. Archivos—deZootecnia, 38 (141) 107-125.
Pex,G. 1993. An İ vestigation on Testes Weight, Measurements and Histological Traits in Simmental Bulls and Their Relationship whit Male Fertility. Thesis. LudwingMaximilians- Univ. Munchen. Germany.
Pex, G., F. Sinowatz, G. Averdunk and O, bisti, 1996. Genetic analysis of morphological testis traits and their relationship to paternal non- return rate and meat and carcass traits in German simmantals. Zuchtungs- kunde, 68 (5) 346-356.
Robinson,.0. W., B. Johnson and D, Lubrit, 1990. Genetic parameters for testesterone production in boars. Proceedings of the 4thWorld Congress on Genetics Applied to Livestock Production. Edinburg, 23-27 July.
Sönmez, R., M, Kaymakç ı , 1987. Koyunlarda Döl Verimi. Ege. Üniv. Ziraat Fak. Yay. No: 404. İ zmir.
Swanopoel, F. J. C., H, Heynes, 1990. Scrotal circumference in young beef bulls relationships to growth traits. Proceedings of the 4thWorld Congress on Genetics Applied to Livestock Production. Edinburg, 23-27 July.
Wicke, I., K., Mudra.1992.Testis development in young boars and its relationship with growth and senen production. ArchivFur- Tierzucht, 35 (6) 591 -602