Growth and development of replacement heifers of Holstein black-and-white breed of different ecogenesis
Bibliographic record
Abstract
An important task of rearing of replacement young animals of different origin in dairy cattle breeding is to breed such type of animals that due to their size, strength of constitution, development of organs and systems, would ensure high milk productivity for a long time. This is especially true for the Black-and-White breed, which occupies a leading position among the breeds of dairy cattle. The purpose of the work was to study the growth and development of replacement heifers of Holstein black-andwhite breed of different ecogeneses. The growth and development of replacement heifers of Holstein black-and-white heifers of local breeding and herdmates of Holstein breed of Austrian and Canadian breeding under the conditions of the North Kazakhstan region in the Republic of Kazakhstan have been studied. Thus, it has been found that the absolute and relative growth rate was higher in animals of Canadian breeding, compared with herdmates of Austrian and domestic breeding. The live weight of black-and-white Holstein heifers of Canadian breeding at birth was higher than that of herdmates of Austrian and domestic breeding by 1,5 and 2,4 kg or 4,1 and 6,7 %, at 18 months of age by 32,6 and 50,8 kg or 4,6 and 13,0 % (P < 0,001). Heifers of Austrian breeding had an advantage over domesticbred heifers at birth by 0,9 kg or 2,5 %, and at the age of 18 months by 18 kg or 4,6 % (P < 0,001). Heifers of Canadian and Austrian breeding had the advantage over their herdmates of domestic breeding according to the studied body measurements and body built indices.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".