原始
发表于 2025-3-30 09:47:29
https://doi.org/10.1007/978-3-476-05247-6ogeny groups with a total of 326 offspring, which were tested simultaneously on the standard short term test and under farming conditions..Significant interactions between testing environment and farm environment have been shown, leading to distinct changes in ranking of the sires tested. The magnit
弯弯曲曲
发表于 2025-3-30 16:00:26
https://doi.org/10.1007/978-1-4757-5900-6ion systems. Feed intake, earliness of maturity, muscle growth capacity and grazing ability could have been changed by these selections. Since there is enough genetic variability in these traits, improvement of growth capacity on pasture can be achieved by selection as shown by New Zealand results.
Banquet
发表于 2025-3-30 20:22:06
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ADORE
发表于 2025-3-30 21:24:24
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教育学
发表于 2025-3-31 04:36:44
John G. Stevens,Virginia E. Stevensd in a Midas 3 microprocessor. The microprocessor analysis differentiates between jaw movements devoted to prehension and mastication during eating, ruminating and idling, and summates both the jaw movements and time devoted to each action. Preliminary observations suggest that the ratio of time dev
可用
发表于 2025-3-31 06:46:03
https://doi.org/10.1007/978-1-4684-3156-8ars these areas have been slowly abandoned. Among the possibilities to restore these areas to agriculture, the re-introduction of suckler herds of beef cattle could be of interest. This production system could be advantageous because of the availability of low cost grazing land but most Italian farm
团结
发表于 2025-3-31 11:14:00
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plasma
发表于 2025-3-31 14:47:13
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震惊
发表于 2025-3-31 19:36:25
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voluble
发表于 2025-4-1 00:27:44
Summer Grazing and Winter Feeding Studies with Suckler Cows the high stocking rate had lowest daily gains in all three years. Prior to early August, stocking rate had no effect on calf performance except in year 2 when those at the high stocking rate had lower daily gains. From early August until the end of the grazing season stocking rate significantly aff