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Performance of egg-producing De Kalb hybrids in Slovakia


, : Performance of egg-producing De Kalb hybrids in Slovakia. Acta Zootechnica, Nitra 28: 173-184

De Kalb hybrids were evaluated in 1969-71 on a breeding farm (53 805 chicks and 33 763 hens) and on 6 commercial farms (221 918 chicks and 169 783 hens). For the 2 types of farm resp., mortality during rearing averaged 9.4 and 10.5%, age at 1st egg 121 and 131 days, age at 50% egg production 155 and 184 days, and percentage of females transferred to the production flock 80.1 and 85.9.

US$29.90


Other references

Courtial, D.C., 1971: How to care for the patient with pelvic traction. Hospital Management 112(2): 16-16

Braz, D.-Cavalcante; Viana-Nunes-Pinheiro, A.-Maria; De-Moura, W.-Leal; De-Carvalho, M.-Acelina, 2006: DESCRICAO HISTOLOGICA DOS INCISIVOS DA CUTIA Dasyprocta prymnolopha (Wagler, 1831). This work objectified the histological descriptions of incisor and periodonto of Cutia. It was used 10 animals (Dasyprocta prymnolopha) raised on captivity, without considering age or sex. It was used the classical histological processing. The en...

Rennell, C.L., 1973: Foramen of Morgagni hernia with volvulus of the stomach. American Journal of Roentgenology, Radium Therapy, and Nuclear Medicine 117(2): 248-250

Heath, C.W.; Patek, A.J., Jr., 1937: The anemia of iron deficiency. The total amount of Fe in the blood of a man in good nutritional state is estimated as 4.3 g. ; this Fe is present as an essential part of Hb, as depot Fe and as tissue Fe unavailable for blood formation. The metabolism of Fe is discussed and the...

Jurberg, C., 2004: Nicolau Maues da Serra Freire. Entomologia y Vectores. julh-ago-set; 113: 377-416

Gorman, Rita, 1995: Wilbur D. May Arboretum and Botanical Garden, Reno, NV. American Nurseryman 182

Zhao Fuxi, L.K.n; S.J.ngyi, 1995: C-myc and H-ras cellular oncogenes and human papillomavirus in cervical carcinoma. To analyze the role of human papillomavirus (HPV) infection and C-myc and H-ras oncogene activation in development of cervical carcinoma, 60 biopsies from cervical carcinoma patients were examined. HPV DNA was detected by consensus polymerase chai...

Wierzba, W.M.; Radowicki, S., 1997: Microscopic evaluation of the placenta of women from an ecologically threatened area (Płock). Part II. It was analysed the microscopic features of 226 placentas from normal pregnancies. The 146 of them were obtained from Płock's area and 80 from control group (Kutno). It was demonstrated statistical significant differences in amount of microi...

James, D.J.; Passey, A.J.; Baker, S.A., 1994: Stable gene expression in transgenic apple tree tissues and segregation of transgenes in the progeny: Preliminary evidence. We report here, for the first time, the stable expression and Mendelian segregation of transgenes in a tree species. So far we have evidence for a 1:1 segregation of the nos gene in the R1 of transgenic apple progeny. In addition we present eviden...

Mckay, D.G.; Hardaway, R.M., 1959: Alterations in the hemostatic mechanism in the experimental crush syndrome. Following the application of a crushing injury to a hind leg of 2 dogs, no detectable alteration in the hemostatic mechanism was observed. However, after release of the crush there was aprompt activation of fibrinolytic and fibrinogenolytic enzyme...