论文部分内容阅读
在进行农畜试验时,经常遇到的问题是供试材料较难一致。因为一胎的幼畜数目不多,不能满足一个试验的需要,于是不得不采用不同亲本不同年龄的幼畜。即使采用了同胎幼畜,但各幼畜的大小、体重等亦各不相同,而这些因素对今后农畜的生长发育却起着巨大的作用。上述差異虽则在选择试验材料时应尽量避免,但实际上总是难于完全消除。这就使试验在一开始即有差異存在,如用一般的变量分析法,势难区别试验材料在生育上的差别,究系由于处理(或品种)不同,抑或由于试验起点不同而造成,因而影响试验结果的正确性。因此,必须应用相关变量分析法,以消除始重差異对幼畜生长发育的影响,使处理间的比较可以放在相对等的水平上,提高试验的正确性。在多年生作物试验中,以空白试验的产量纪录来
In the livestock and poultry test, the problem often encountered is more difficult to test the material. Because a small number of one-child pups, can not meet the needs of a trial, so had to adopt different parents of young children of different ages. Even with the same fetus, but the size of young pups, body weight, etc. are also different, and these factors for future growth and development of livestock and poultry but it has played a huge role. Although the above differences in the choice of test materials should be avoided, but in fact always difficult to completely eliminate. This makes the experiment at the beginning that there are differences, such as the use of general variable analysis method, the potential difference between the test material to distinguish fertility, the study is due to the processing (or variety), or due to the different starting point of the test and therefore Affect the correctness of the test results. Therefore, the relevant variables analysis method must be applied to eliminate the impact of the initial weight difference on the growth and development of young animals, so that the comparison between treatments can be placed on a relatively equal level to improve the accuracy of the test. In perennial crop trials, a record of blank trial production was used