Influence of Previous Calving Intervals on Milk Yield Traits of Holstein-Friesian Cattle Reared in the Kumkale State Farm Located in Western Anatolia

2003 ◽  
Vol 3 (3) ◽  
pp. 203-205
Author(s):  
Feyzi Ugur .
Keyword(s):  
Milk Yield ◽  
Western Anatolia ◽  
Yield Traits ◽  
State Farm ◽  
Holstein Friesian ◽  
Calving Intervals ◽  
Friesian Cattle

Türkiye’de Yetiştirilen Holştayn İneklerde Süt Verim Özelliklerine Ait Fenotipik ve Genotipik Parametre Tahminleri

2017 ◽  
Vol 5 (10) ◽  
pp. 1243 ◽  
Author(s):  
Ahmet Derviş Sarar ◽  
İbrahim Tapkı
Keyword(s):  
Milk Yield ◽  
Yield Traits ◽  
Dry Period ◽  
State Farm ◽  
Lactation Length ◽  
Yield Parameters ◽  
Holstein Friesian ◽  
Calving Season ◽  
Friesian Cows

In this study, milk yield parameters of Holstein Friesian cows raised at Koçaş State Farm were investigated. The means of lactation milk yield, 305 d milk yield, lactation length and dry period were found as 7046.18 kg, 6588.38 kg, 327.37 d and 67.48 d respectively. Also, estimated heritability’s of same traits were as 0.25, 0.26, 0.07 and 0.03 respectively. The effects of year, season and lactation number on lactation milk yield, 305 d milk yield and lactation length; the effects of calving season and lactation number on dry period were found significantly. In conclusion, data of milk yield traits of Holstein Friesian cows in raised Koçaş State Farm herd were determined well condition within reasonable ranges.

Relationships among udder type traits and milk yield of Iranian Holstein-Friesian cattle

2003 ◽  
Vol 2003 ◽  
pp. 141-141
Author(s):  
M. R. Sanjabi ◽  
M. G. Govindaiah ◽  
M. M. Moeini
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Genetic Correlations ◽  
Holstein Friesian ◽  
Type Traits ◽  
High Production ◽  
Friesian Cattle

Correlation among type traits and with milk production has been investigated by Brotherstone (1994) and Misztal et al (1992). One of the primary reasons for collecting and utilizing information on type traits is to aid breeders in selecting profitable functional cows for high production and suitable herd life. The objectives of this study were to estimate phenotypic and genetic correlations among milk production and with udder traits.

scholarly journals A comparison of different methods of estimating sire transmitting ability of some milk traits in a herd of Holstein Friesian cattle

2000 ◽  
Vol 43 (2) ◽  
pp. 115-122
Author(s):  
H. Atil ◽  
A. S. Khattab
Keyword(s):  
Least Squares ◽  
Milk Yield ◽  
Lactation Period ◽  
Milk Traits ◽  
Linear Unbiased Prediction ◽  
Age At First Calving ◽  
Holstein Friesian ◽  
Genetic And Phenotypic Correlations ◽  
Best Linear Unbiased ◽  
Friesian Cattle

Abstract. A total of 1931 normal first lactation records of Holstein Friesian cows kept at Dena Farm in Egypt during the period from 1987 to 1994 were used to estimate phenotypic and genetic parameters for 90 day milk yield (90 dMY), 305 day milk yield (305 dMY) and lactation period (LP). In addition, 76 bulls with at least ten daughters were used to compare three methods of sire transmitting ability. A least Squares analysis of variance show significant effect of month and year of calving and age at first calving for different traits studied, except the effect of age at first calving on LP. Heritability estimates for 90 dMY, 305 dMY and LP were 0.39 ± 0.08, 0.27 ± 0.07 and 0.14 ± 0.05, respectively. Genetic and phenotypic correlations between different traits were positive and significant. Sires with at least ten daughters were evaluated by best linear unbiased prediction (BLUP), least Squares means (LSM) and regression of the future daughters mean on the present daughters mean. The product moment correlations between different traits studied were positive and high (= 0.96).

scholarly journals Season of birth is associated with first-lactation milk yield in Holstein Friesian cattle

animal ◽  
2017 ◽  
Vol 11 (12) ◽  
pp. 2252-2259 ◽  
Author(s):  
M. Van Eetvelde ◽  
M.M. Kamal ◽  
L. Vandaele ◽  
G. Opsomer
Keyword(s):  
Milk Yield ◽  
Season Of Birth ◽  
Holstein Friesian ◽  
Friesian Cattle
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