Relevant bibliographies by topics / Fleckvieh and Jersey cows – Crossbreeding

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Academic literature on the topic 'Fleckvieh and Jersey cows – Crossbreeding'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Fleckvieh and Jersey cows – Crossbreeding"

1

Goni, Sindisile, Carel Johan Christiaan Muller, Bekezela Dube, and Kennedy Dzama. "Milk production of Jersey and Fleckvieh × Jersey cows in a pasture-based feeding system." Tropical Animal Health and Production 47, no. 1 (2014): 139–44. http://dx.doi.org/10.1007/s11250-014-0698-y.

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2

Krugliak, А. P. "METHODICAL BASIS OF CROSSBREEDING USING IN DAIRY CATTLE." Animal Breeding and Genetics 52 (November 1, 2016): 41–48. http://dx.doi.org/10.31073/abg.52.07.

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The scientific research analysis of crossbreeding using in dairy cattle of guiding countries has been implemented. There has been proved, that positive results of crossbreeding can be only for observing methodical basis of its using. They are: successful selection of initial-breeds, types and plans of theirs crossing, definition of feeding conditions and management of crossbred animals, application of methods of traits valuing, directed selection of bulls.
 Methodical bases of crossbreeding using in dairy cattle are following:
 - clear determination of main aim of crossbreeding program;
 - selection of improve breed may realize not for the most positive but for the less number of traits.
 A complementary breed shouldn’t have lower milk productivity but higher level of traits, for the sake of which it is selected to crossbreeding. It should be suitable to concrete system of milk production, have satisfactory population, the ramified genealogy and sufficient number of bulls-improvers.
 Plan of crossing significantly influences on the results of crossbreeding. The complex rotational crossing using 3-4 selected unrelated breeds is effective.
 The bulls, which are selected to crossbreeding, should have the highest estimation for traits, by which the selection is being carried out. They should be free from of exterior and genetic defects.
 The selection level should correspond to pure breeding.
 The innerbreed crossbreeding of Ukrainian Red-and-White dairy cows with top bulls of Montbeliarde, Holstein Red-and-White and Fleckvieh breeds has been suggested.
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3

Goni, S., C. J. C. Muller, B. Dube, and K. Dzama. "Reproductive performance of Jersey and Fleckvieh × Jersey heifers and cows maintained on a pasture-based feeding system." South African Journal of Animal Science 45, no. 4 (2015): 379. http://dx.doi.org/10.4314/sajas.v45i4.4.

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4

Goni, Sindisile, Carel Johan Christiaan Muller, Bekezela Dube, and Kennedy Dzama. "Effect of Crossbreeding on Beef Production of Jersey Herd Using Fleckvieh Sires Maintained on a Pasture-Based Feeding System." Open Journal of Animal Sciences 06, no. 03 (2016): 163–68. http://dx.doi.org/10.4236/ojas.2016.63021.

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5

Szendrei, Zoltán, and Béla Béri. "Production and disposition of purebred Jersey populations." Acta Agraria Debreceniensis, no. 31 (November 24, 2008): 89–96. http://dx.doi.org/10.34101/actaagrar/31/3012.

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In Hungary crossbreeding wit Jersey has been in practice since 2004. Uniquely in the Hungarian history of the Jersey breed two times fifty head pregnant heifers were imported in 2006. The aim of our study is to present through the description of the production and the type traits of the population the inherent possibilities of Jersey. The breed is presented by the figures of the rolling lactations, 305 day milk production, correlations between the traits and by the results of the evaluation of type traits. Analyses of the data were done by using independent samples t-test.Based on data of 87 cows the average number of days in milk is 308 and 48 cows has finished lactation. During the rolling lactation they produced 5050 kg milk with 5.34% fat and 3.8% protein content.The first lactation Jersey cows’ production when corrected to 305 days was 5089 kg milk with 5.35% fat and 3.81% protein. Between the herds there was significant difference in milk kg, amount of fat produced, protein content and amount of protein produced. On the two farms distribution of cows belonging to different production levels is very different. The biggest difference is when categorized by the amount of milk produced.Correlation between the milk kg and fat kg is the greatest (r=0.950). Similar values were obtained for the correlation between fat and protein kg (r=0.919) and for the milk kg and fat kg (r=0,898). Disposition of the Jersey cows is very well balanced. Their stature, strength, body depth, dairy form, rump angle and pin width is favorable, the average scores are between 4.5 and 6.5. The leg of the cows is a bit sickly, and is hocking in a little with medium-low angled hoof. Average values of all traits describing the udder are between 4 and 5. Cows belonging to the two herds differ by disposition. Significant difference exists in the following traits: body depth, dairy form, pin width, rear leg - side view, rear leg, rear view, foot angle, fore udder attachment, teat length. TheJersey population imported to Hungary has a final score of 78 points which equals with the “good” qualification.
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6

Sasanti, B., S. Abel, C. J. C. Muller, W. C. A. Gelderblom, and A. Schmulian. "Milk fatty acid composition and conjugated linoleic acid content of Jersey and Fleckvieh x Jersey cows in a pasture-based feeding system." South African Journal of Animal Science 45, no. 4 (2015): 411. http://dx.doi.org/10.4314/sajas.v45i4.7.

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7

Szarek, J., K. Adamczyk, and A. Felenczak. "Polish Red Cattle breeding: past and present." Animal Genetic Resources Information 35 (April 2004): 21–35. http://dx.doi.org/10.1017/s1014233900001784.

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SummaryThe aim of this study was to characterise the Polish Red cattle breed, the only existing native breed in Poland. The origin and conformation of this breed and its historical development, distribution and performance were described. Moreover, the attention was paid to the attempts to improve the breed milk performance by crossbreeding with Jersey, Danish Red and Angler and beef performance by crossbreeding with Black-and-White, Red-and-White, Simmental and beef bulls.Before the Second World War the Polish Red held the rank of an international breed, and since the middle of the previous century had been found almost throughout Poland. In the 1950s it still constituted 22% of the whole cattle population in Poland. Indeed in 1954 the Polish Red cattle population amounted to over 1.5 million head. Currently, Polish Red cattle are in danger of extinction. Only 300 cows are included in the Program of Genetic Resources Conservation and scarcely several hundred embryos and semen doses are stored in the Semen Bank of the National Research Institute of Animal Production in Balice.In 2001 the number of recorded Polish Red milking cows was 1 201. Their average performance amounted to 3 786 kg of milk with 4.26% of fat and 3.39% of protein. However, milk yield of the cows at the best farms exceeded 5 500 kg.
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8

Olson, K. M., B. G. Cassell, and M. D. Hanigan. "Energy balance in first-lactation Holstein, Jersey, and reciprocal F1 crossbred cows in a planned crossbreeding experiment." Journal of Dairy Science 93, no. 9 (2010): 4374–85. http://dx.doi.org/10.3168/jds.2010-3195.

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9

Vanderick, S., B. Harris, P. Mayeres, A. Gillon, C. Croquet, and N. Gengler. "Estimation of (co)variance components across breeds by a test-day model adapted to New Zealand dairy cattle." Proceedings of the British Society of Animal Science 2005 (2005): 114. http://dx.doi.org/10.1017/s1752756200010255.

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In New Zealand, crossbreeding is largely used by dairy farmers. Currently an important proportion of cows are crossbreds, mostly Holstein-Friesians (HF) x Jersey (JE). Crossbred bulls are currently being progeny tested in New Zealand. Actually, more than one third of the replacement dairy heifers are crossbred animals (Montgomerie, 2002). However currently available methods to model genetic contributions of purebreds to crossbreds take breed differences only partly into account and therefore do not permit an optimal use of crossbred data. The first objective of our study was to allow the modelling of different additive breeding values according to parental breeds to define overall additive breeding values as a function of breed composition.
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10

Lopez-Villalobos, Nicolas, Richard J. Spelman, Janine Melis, et al. "Estimation of genetic and crossbreeding parameters of fatty acid concentrations in milk fat predicted by mid-infrared spectroscopy in New Zealand dairy cattle." Journal of Dairy Research 81, no. 3 (2014): 340–49. http://dx.doi.org/10.1017/s0022029914000272.

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The objective of this study was to estimate heritability and crossbreeding parameters (breed and heterosis effects) of various fatty acid (FA) concentrations in milk fat of New Zealand dairy cattle. For this purpose, calibration equations to predict concentration of each of the most common FAs were derived with partial least squares (PLS) using mid-infrared (MIR) spectral data from milk samples (n=850) collected in the 2003–04 season from 348 second-parity crossbred cows during peak, mid and late lactation. The milk samples produced both, MIR spectral data and concentration of the most common FAs determined using gas chromatography (GC). The concordance correlation coefficients (CCC) between the concentration of a FA determined by GC and the PLS equation ranged from 0·63 to 0·94, suggesting that some prediction equations can be considered to have substantial predictive ability. The PLS calibration equations were then used to predict the concentration of each of the fatty acids in 26 769 milk samples from 7385 cows that were herd-tested during the 2007–08 season. Data were analysed using a single-trait repeatability animal model. Shorter chain FA (16 : 0 and below) were significantly higher (P<0·05) in Jersey cows, while longer chain, including unsaturated longer chain FA were higher in Holstein-Friesian cows. The estimates of heritabilities ranged from 0·17 to 0·41 suggesting that selective breeding could be used to ensure milk fat composition stays aligned to consumer, market and manufacturing needs.
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