Báo cáo sinh học: "Genetic parameters for lactation traits of milking ewes: protein content and composition, fat, somatic cells and individual laboratory cheese yield" ppt
Báo cáo sinh học: "Genetic parameters for lactation traits of milking ewes: protein content and composition, fat, somatic cells and individual laboratory cheese yield" ppt
... 10.1051/gse:2002024Original articleGenetic parameters for lactation traits of milking ewes: protein content and composition, fat, somatic cells and individual laboratory cheese yieldMed. Houcine OTHMANE, ... factors and the genetic parameters for total milk traits (fat content, protei n content, casein content, serum protein content, lactation mean of individual laboratory cheese yield (LILCY), lactation ... pertinentinformation included t he date of milk sampling, number of suckled lambs, date of birth of the ewe and lambing date. Lactation measures of milk composition traits (fat content, protein content, casein...
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Báo cáo sinh học: " Genetic parameters for first lactation dairy traits in the Alpine and Saanen goat breeds" docx
... solid content was lower. Within-breed, the genetic standard deviation was 1.8-2 foldlarger for fat content than for protein content. The heritability of fat and protein ... yields and on contents.Within-breed of sire genetic parameters Genetic variability of the traits. The estimates of heritability, genetic and phenotypicstandard deviations and ... estimates of heritability were near 0.30 for milk yields, ranged from 0.31 - 0.39 for fat and protein yields and were higher for contents (0.41 - 0.52). For contents,...
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Báo cáo sinh học: " Genetic parameters for social effects on survival in cannibalistic layers: Combining survival analysis and a linear animal model" pdf
... BV of the individual itself (DBV = AD, i); associa-tive BV of the gr oup members (SBV =−ΣnSjA1,)andacombination of the direct BV of the individual itself and the associative BV of ... combi-nation of the direct breeding value and the associativebreed ing values of the group members (DSBV) . Compar-ing genetic parameters of 2STEP and LAM is notstraightforward. For 2STEP, genetic parameters ... 42:27http://www.gsejournal.org /content/ 42/1/27Page 3 of 10accuracies were calculated (Table 4) and wer e moderate, and approximately the same for both methods.DiscussionWe have estimated genetic parameters for direct and associative...
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Báo cáo sinh học: "Genetic parameters for somatic cell score according to udder infection status in Valle del Belice dairy sheep and impact of imperfect diagnosis of infection" pptx
... shape of lactation curves [16]; Amwasthe random a dditive genetic effect of the individual m(1,603 levels); PEmwas the ge neral random permanentenvironmental effect of ewe m across lactations ... mean SCC was 403 (× 103 cells/ mL) for thewhole data , 253 for the bacteria ne gative, and 1,082 for the bacteria positive. Although ranges of SCC for unin-fected and infected animals were ... (bacterianegative) and the accompanying SCC information (5,977test-day records from 1,805 lactations of 1,062 ewes).Table 1 Number of observations and frequencies for bacteria observedNumber of observationsFrequency...
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Báo cáo sinh học: " Genetic parameters for resistance to the Salmonella abortusovis vaccinal strain Rv6 in sheep" ppt
... Nouzilly) for the use of hissoftware dealing with a bivariate analysis of binary traits and continuous traits. The technicians of the Inra farm, La Sapinière, are gratefully acknowledged for all ... estimation of genetic parameters (heritability and genetic correlations).At the same time, the populations were observed for economic traits: bodygrowth and wool traits [2], as well as carcass traits ... 4.6 to 5.6) for the number of bacteria per gram in organs (BgLN, BgRN and BgS), a moderate asymmetry(g1= 2.2 and 1.9) for the IgG1 antibody measurements (IgG10 and var-IgG1) and slight (g1=...
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Báo cáo sinh học: " Genetic parameters for litter size in sheep: natural versus hormone-induced oestrus" pptx
... posterior means for the proportion of variance of the PE-effectwere 0.06 and 0.16 for LSN and 0.05 and 0.10 for LSI in AM and SM respec-tively. For the YF-effects, the means of the posterior ... posterior mean of the heritabil-ity of litter size was 0.10 and 0.08 for LSN and 0.11 and 0.10 for LSI in AM and SM respectively. The PE-effect accounted for about 0.06 to 0.09 of thevariance and the ... Suffolk and Texel sheep. Number of records, number of levels in each effect and coefficient of determination of the model (R2). Probabilityvalues of the F-test are given in brackets.Number of Age of...
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Báo cáo sinh học: "Genetic parameters for twinning in the Maine-Anjou breed" pot
... vector of underlying meansP: vector of parity of cow effectsul: vector of sire of fetus effectsU2: vector of sire of cow effectsU3: vector of cow within sire of cow ... and 0.02 for direct and fetal effects,respectively, with a correlation between both effects of 0.36. Transmitting abilities of bulls were expressed on the underlying and ... direct and fetal effects and polygenic inheritance. The statisticalmodel included the effects of parity, year-season, herd, sire of the fetus, sire of thecow and cow...
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báo cáo khoa học: "Genetic parameters for first lactation dairy traits in Friesian, Montbéliarde and Normande breeds" ppsx
... analysed : milk yield, fat and protein contents, fat and protein yields, lactation length (L) and ratio of protein to fat content. Useful content and yield were also analysed. ... genetic variability of protein content was about half that of fat content. The.genetic antagonism with milk yield was stronger for protein content than for fat content. While ... Jouy,F78350 Jouy-en-Josas.SummaryGenetic parameters for dairy traits in first lactation (milk yield, fat and protein yields, fat and protein contents) were estimated in the 3...
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Báo cáo sinh học: " Genetic parameters related to environmental variability of weight traits in a selection experiment for weight gain in mice; signs of correlated canalised response" pot
... methods and 3 replicates by method = 18 × 3 × 3, and one level for founder population), u the vector of unknown parameters for the direct animal genetic effect, c the vector of unknown parameters for ... (ν = 4andS= 0.45) distributions were assigned for variance parameters σ2u, σ2u∗ and σ2c, σ2c∗, and a uniform prior bounded be-tween −1 and 1 was assigned for ρ.The results for each ... 20, 27] for different species and traits. If the environ-mental variability is computed for the upper and the lower limits of the 95%highest posterior density interval of u∗, a ratio of 4 to...
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Báo cáo khao học: "Genetic parameters for spiral-grain angle in two 19-year-old clonal Norway spruce trials" potx
... chronological year of ring formation.The medium to high broad-sense heritabilities for grainangle in individual rings agreed with estimates obtained for Sitka spruce [11] and other conifers (for review, ... slope of the regression of grain angle on ring number from pith and the grain angle of Genetic parameters for spiral grain 555Figure 3. Mean grain angle per annual ring across trials and clonalmeans ... any of the tree ringsbetween the 5th and the 10th ring.The genotypic correlations between the slope of the re-gression of grain angle on ring number from pith and grainangle of the individual...
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