FACTORS OF NATURAL RESISTANCE AND THEIR INFLUENCE ON THE DAIRY PRODUCTIVITY OF THE DAUGHTERS OF CANADIAN-BRED BULLS
Bibliographic record
Abstract
Работу проводили на базе племзавода в Московской области. Для исследования были отобраны 56 дочерей 5-ти быков-производителей, завезенных из Канады, закончивших 1-ю лактацию в 2016—2017 годах. Изучали показатели молочной продуктивности, воспроизводительные качества коров в течение всего времени использования. В летне-осенний период в крови определяли клеточные факторы иммунитета, фагоцитарную активность. Целью было изучение влияния быков-производителей канадской селекции на естественную резистентность, молочную продуктивность и воспроизводительные качества их дочерей в условиях отечественного производства. Рассчитанные корреляции между показателями «сегментоядерные нейтрофилы» и «лимфоциты» могут служить основой для суждения о внешних и внутренних воздействиях на организм коров в период лактации. Установлено, что корреляция между сегментоядерными нейтрофилами и лимфоцитами оказалась достаточно низкой в 1-ю и 3-ю лактации. При этом удои в эти лактации были наиболее высокими (8030 кг и 8432 кг) по сравнению со 2-й и 4-й. Во 2-ю и 4-ю лактации коэффициенты корреляции сегментоядерные нейтрофилы/лимфоциты имели значения -0,561 (Р≤0,05) и -0,87 (Р≤0,001). Число значимых корреляций в 1-ю лактацию было наибольшим и составило 4, во 2-ю — 2, в 3-ю значимых корреляций не было, а в 4-ю их число равнялось 3. Устойчивых корреляций от лактации к лактации не установлено. Полученные данные указывают на ощутимое воздействие факторов адаптации в период 1-й лактации коров — дочерей быков, завезенных из Канады, дальнейшую частичную адаптацию и достаточно высокие адаптационные способности к 4-й лактации. Изучение корреляционных значений между клеточными факторами иммунитета дочерей быков, завезенных из Канады, в динамике может способствовать иммунопрофилактическим мерам по предотвращению общего дисбаланса в организме животных в периоды лактаций, а также поддержанию их здоровья и увеличению производственного использования. The work was carried out on the basis of a breeding plant in the Moscow region. 56 daughters of 5 breeding bulls imported from Canada were selected for the study. Cows completed the 1st lactation in 2016-2017. The indicators of milk productivity, reproductive qualities of animals during the entire time of use were studied. In the summer-autumn period, cellular immunity factors and phagocytic activity were determined in the blood. The aim was to study the influence of Canadian breeding bulls on the natural resistance, milk productivity and reproductive qualities of their daughters in the conditions of domestic production. The calculated correlations between the indicators of segmented neutrophils and lymphocytes can serve as a basis for judging the external and internal effects on the body of cows during lactation. It was found that the correlation between segmented neutrophils and lymphocytes was quite low in the 1st and 3rd lactation. At the same time, milk yields during these lactation were the highest (8030 kg) and (8432 kg) compared to the 2nd and 4th. At the same time, in the 2nd and 4th lactation of the correlation, segmented neutrophils/lymphocytes had values of -0.561 (P≤0.05) and -0.87 (P≤0.001). The number of significant correlations in the 1st lactation was the largest and amounted to 4, in the 2nd — 2, in the 3rd there were no significant correlations, and in the 4th their number was 3. Stable correlations from lactation to lactation were not established. The data obtained indicate a tangible impact of adaptation factors during the 1st lactation of cows - daughters of bulls imported from Canada, further partial adaptation and sufficiently high adaptive abilities to the 4th lactation. The study of correlation values between cellular immunity factors of the daughters of bulls imported from Canada, in dynamics, can contribute to immunoprophylactic measures to prevent a general imbalance in the body of animals during lactation, as well as to maintain their health and increase production use.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.000 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".