lambaste 发表于 2025-3-23 12:31:15
http://reply.papertrans.cn/19/1822/182111/182111_11.pngblight 发表于 2025-3-23 16:17:59
Book 198213-15, 1981, under the auspices of the Commission of the European Communities (CEC) as part of the European Communities (EC) programme for beef production research. The CEC wishes to thank those representatives of Ireland who took responsibility for the organisation and conduct of this Seminar, notaRecessive 发表于 2025-3-23 21:42:28
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Danish Breeding Strategies for Milk and Beef Traits in Dairy and Dual Purpose Cattle Breedssbred potential breeding bulls are important..In Denmark such selection is mainly based on performance tests of growth rate, appetite and ultrasonic muscle area (600 bulls/year), and to a lesser extent on progeny tests for growth rate, carcass composition and meat quality (30 progeny groups/ year).空中 发表于 2025-3-24 03:47:20
A Note on the Comparison of Holsteins and Friesians for Growth, Feed Efficiency and Carcass Traitstly inferior saleable meat yield. There was evidence of price discrimination against poor shape in UK markets..It is estimated that the proportion of Holstein blood in ‘black and white’ UK cattle is increasing and a deterioration in shape in this population has been recorded.affect 发表于 2025-3-24 09:13:48
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Crossbreeding of Beef Bulls on Friesian Cows in Italyriod..The Chianina-Friesian and Romagnola-Friesian crosses had difficulties during calving, which were probably due to the high birth weight of the calves; the Romagnola-Friesian cross had the lowest mortality rate at birth.tenuous 发表于 2025-3-24 15:59:52
Comparison of Danish Friesian, Holstein Friesian and Red Danish for Beef Productionish:.Finnish Ayrshire, Swedish Red and White, Dutch Red and White, Red Canadian Holstein-Friesian and American Brown Swiss..The best beef production results were obtained with Dutch Red and White and American Brown Swiss.DECRY 发表于 2025-3-24 21:54:17
Testing of Different Strains of Friesian Cattle in Poland. Beef Performance of F1 Friesian Bulls Fatries: USA, Canada, Israel, New Zealand, Denmark, Sweden, Federal Republic of Germany, Great Britain, Holland and Poland..Each group was evaluated genetically on the basis of the fattening results obtained from 28 bulls. A half of those animals was fattened up to 450 kg and the other half up to 550 k难理解 发表于 2025-3-25 00:38:37
Comparison of Beef Performance of Different Friesian Strains from Progeny Test Results in Irelandprogeny test results in Ireland gave an evaluation of the relative merits of different Friesian strains for beef production. German Friesians were similar to Irish Friesians. New Zealand Friesians were slower growing with inferior carcass conformation but with similar carcass composition to Irish Fr