[PDF] Top 20 Estimation of the genetic parameters for test-day milk yield in Holstein cattle
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Estimation of the genetic parameters for test-day milk yield in Holstein cattle
... 1. Grosu, H., Schaeffer L., Oltenacu P. A., Norman D., Powell R., Kremer V., Banos G., Mrode R., Carvalheira J., Jamrozik J., Draganescu C., and Lungu S., History of genetic evaluation methods in dairy ... See full document
5
Estimation of Genetic Parameters for Live Weight in South African Holstein Cattle
... Variance components, on which this heritability estimate is based, can be used to calculate estimated breeding values for live weight; thus making it possible to include live weight in t[r] ... See full document
7
Estimation of genetic parameters for female fertility traits in the Czech Holstein population
... Descriptive statistics. Descriptive statistics of all fertility traits are shown in Table 2. The sta- tistics are generally at the similar level compared to other countries although the strict comparison is not simple. ... See full document
8
Estimation of the genetic parameters for test-day milk, in Teleorman Black Head sheep
... the test-day model [6, 10] rather than the older lactation model, because the test-day model is more accurate in accounting for the environmental variations associated with ...the ... See full document
5
Estimation of the breeding values and genetic parameters in Teleorman Black Head Sheep breed
... and genetic parameters estimation methodology applied on Teleorman Black Head Sheep breed genetic improvement ...using test-day milk yield and the genetic ... See full document
6
Estimation of genetic parameters and evaluation of test day milk production in sheep
... ABSTRACT: Genetic parameters and breeding values were estimated based on 11 708 daily milk yields from 2255 lactations (1351 sheep, 19 different flocks) between the years 2004 and ...the ... See full document
7
Using spline test-day model for estimating the genetic parameters for cows milk yield
... for test-day milk yield. High additive genetic variances were observed at the beginning and at the end of lactation compared with the middle of ...additive genetic variances were ... See full document
5
Bayesian genetic analysis of milk yield in Tunisian Holstein dairy cattle population
... of milk yield collected in 305 days with 2 times milking per day, β is a vector of non-genetic fixed effects including: herd, year-season, and lactation number, u is a random vector of ... See full document
6
Genetic parameters of test day somatic cell scores for the first three lactations of Polish Holstein Friesian cattle
... in genetic variance for later parities can be observed, with average values of ...of genetic variances were estimated in the first month of ...in genetic variance between pari- ties were at the end ... See full document
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Estimation of Genetic Parameters for 305 Days Milk Yields and Calving Interval in Xinjiang Brown Cattle
... equivalent milk yield should be further investigated, data quality management might be still an important issue for this ...Brown cattle population involving an economic index of production traits ... See full document
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Estimation of genetic parameters for production traits and somatic cell score in Iranian Holstein dairy cattle using random regression model
... of genetic parameters for traits of economic importance in dairy cattle are necessary for implement- ing efficient breeding ...to milk, fat, and protein production and SCS, confor- mation, ... See full document
10
Monitoring liveweight to optimise health and productivity in pasture[ ]fed dairy herds : a dissertation presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy at Massey University
... on milk production, LW, and ...on milk yield was found, New Zealand cows reached nadir BCS 14 days earlier and lost 22 kg LW less than the North American HF ...the Holstein gene in dairy cows ... See full document
185
Genetic parameters and effect of non genetic factors on lifetime performance traits of murrah buffalo: A review
... positive genetic and correlations with all other first lactation traits and values varied from low to ...in cattle (Singh et ...the estimation of genetic value of performance ...non- ... See full document
5
Genetic parameters for test day model with random regressions for production traits of Czech Holstein cattle
... Third-degree Legendre polynomials (with four coefficients) were used for both the fixed and ran- dom regressions on the scale from 7 to 305 DIM. Let p j represent the vector of 12 by 1 (single-trait model) or of 36 by 1 ... See full document
13
Use of Random Regression Test Day Model to Estimate Genetic Parameters of Milk Yield in Holstein Cows
... Phenotypic correlation for the milk yield estimated between 0.03 to 0.67 during months of lactation (Table 5). Maximum phenotypic correlation observed be- tween consecutive months at the end of lactation ... See full document
12
Analysis of Milk and Fertility Traits in Holstein Friesian Cattle on the Plateau, Jos Nigeria
... improving milk yield over the last decades through the use of selective breeding and omics technology by dairy scientist had been a source of concern due to its snowballing effect on fertility ...The ... See full document
7
Effects of different forage containing rations on metabolic parameters and milk yield in the peripartum of Holstein cows
... In the present experiment, a sharp increase in serum glucose on day 1 postpartum indicates metabolic stress, which could be due to increased epinephrine, glucagon, or both (Grummer, 1995). A lack of forage source ... See full document
9
Significance of Butyrophilin Gene in Relation to Milk Constituents in Dairy Animals
... for milk yield and its composition ...mainly milk yield and fat percentage in dairy animal because it is mainly expressed in lactating mammary tissue and gene product BTN1A1 function in ... See full document
7
Evaluation of milk yield losses associated with Salmonella antibodies in bulk tank milk in bovine dairy herds
... 2006 1.43 0.88 -0.29 3.15 0.91 2.15 -3.31 5.12 2007 3.31 0.90 1.54 5.08 3.05 2.17 -1.20 7.30 2008 3.65 0.95 1.79 5.51 3.30 2.21 -1.03 7.63 2009 5.19 1.06 3.11 7.26 5.28 2.31 0.76 9.81 Sine season -0.29 0.27 -0.82 0.23 ... See full document
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Association of PIT1 gene and milk protein percentage in Holstein cattle
... Iran has a cattle population of 7.9 million of which 45.9, 43.6 and 10.51% are of the indigenous, crossbred and registered (mainly Holstein) cattle. The contribution of livestock to the national ... See full document
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