+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Comparative studies on the milk production of Jersey X Romanian Simmental F1 crossbreds and Romanian Simmental purebreds



Comparative studies on the milk production of Jersey X Romanian Simmental F1 crossbreds and Romanian Simmental purebreds



Lucrari Stiintifice Institutul Agronomic Timisoara, Zootehnie 13: 215-229



For 51 Jersey X Romanian Simmental (RS) F1 crossbreds, their dams, 70 RS females contemporary with the crossbreds, and their dams, age at 1st calving averaged 972, 952, 969 and 940 days resp., duration of the 1st lactation 288, 323, 329 and 313 days, calving interval 360, 404, 398 and 396 days, 1st-lactation milk production 2780, 2574, 2844 and 2551 kg milk fat percentage 4.95, 3.79, 3.78 and 3.78, and protein content 3.67, 3.34, 3.36 and 3.34%.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 000045442

Download citation: RISBibTeXText


Related references

Dynamics of growth and morphological characters of Jersey X Romanian Simmental F1 crossbreds in comparison with Romanian Simmentals. Lucrari Stiintifice Institutul Agronomic Timisoara Zootehnie 13: 189-200, 1970

Correlation between some quality parameters in milk of the Friesian, Romanian Brown, Romanian Simmental and Swiss Simmental breeds. Revista de Cresterea Animalelor 28(4): 17-23, 1978

Blood indices in Friesian X Romanian Simmental backcrosses compared with Friesian X Romanian Simmental F1 crosses, and their correlation with milk yield and milk components. Lucrari Stiintifice, Institutul Agronomic Timisoara, Zootehnie 15: 125-128, 1978

Morpho-productive traits of Red Pied Holstein, German Simmental, Romanian Simmental and Friesian X Romanian Simmentals. Simpozionul Probleme de ameliorare, tehnologie de crestere si patologie la taurine si ovine, Cluj Napoca, 11-12 mai 1979: 94-98, 1980

The frequency of placental retention in Romanian Simmental and crossbred Romanian Simmental with Holstein cattle at the Giarmata farm. Revista Romana de Medicine Veterinara 1(3): 32-36, 1992

Udder conformation indices and dairy performance in Romanian Simmental and Holstein-Friesian X Romanian Simmental F1 crossbred cattle reared under intensive conditions. Lucrari Stiintifice, Institutul Agronomic ' Dr Petru Groza' Cluj, Medicina Veterinara 27: 77-87, 1971

The accuracy of estimation of the general breeding value of Romanian Simmental and Romanian Brown bulls for milk production, based on part lactations of daughters. Lucrari Stiintifice, Institutul de Cercetari pentru Cresterea Taurinelor 2: 37-46, 1975

Comparative study of Holstein-Friesian X Romanian Brown and Holstein-Friesian X Romanian Simmental crossbreds on the Miroslava State Farm, Iasi. Lucrari Stiintifice, Institutul Agronomic "Ion Ionescu de la Brad" Iasi, II Zootehnie Medicina Veterinara: 85-92, 1971

Study of milk components and their fluctuation during lactation in Friesian X Romanian Simmental F1 crossbreds. Lucrari Stiintifice Institutul Agronomic Timisoara, Zootehnie 13: 175-188, 1970

The diameter of milk fat globules and its correlation with the yield and composition of milk from Friesian X Romanian Simmental F1 crossbreds and from the parent breeds. Lucrari Stiintifice, Institutul Agronomic Timisoara, Zootehnie 15: 119-123, 1978

Correlations between milk yield and fat and protein content in the milk in populations of Romanian Simmental and Romanian Brown cows. Lucrari Stiintifice, Institutul Agronomic ' Dr Petru Groza' Cluj, Medicina Veterinara 27: 89-95, 1971

The accuracy of breeding value estimation for milk yield in Romanian Simmental and Romanian Brown sires based on the partial lactations of their daughters. Lucrari Stiintifice, Institutul de Cercetari pentru Cresterea Taurinelor 2: 37-46, 1975

Morphological and production traits of Friesian/Romanian Simmental crossbreds, and methods of breeding for industrial husbandry. Simpozionul Probleme de ameliorare, tehnologie de crestere si patologie la taurine si ovine, 16-17 mai 1980: 160-165, 1980

Economic and production effect of semi-intensive fattening with finishing of Romanian Simmental and Romanian Brown bulls at various ages. Lucrari Stiintifice, Institutul de Cercetari pentru Cresterea Taurinelor (5): 107-118, 1979

Heritability of milk and fat production for Romanian Simmental cattle. Lucr. stiint. Inst. Cere, zooteh, 26: 183, 1968