Genetic determination of reproduction rate traits in dairy cattle breeding
The relevance of the study is due to the need to control economically important attributes of the reproduction of dairy cattle, which have a weak genetic determination and substantially depend on the management and feeding of cows. The purpose of the study is to determine the relationship between th...
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| Format: | Article |
| Language: | English |
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National University of Life and Environmental Sciences of Ukraine
2021-02-01
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| Series: | Тваринництво та технології харчових продуктів |
| Subjects: | |
| Online Access: | https://animalscience.com.ua/en/journals/tom-12-1-2021/gyenyetichna-dyetyerminatsiya-oznak-rivnya-vidtvoryennya-v-molochnomu-skotarstvi |
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| author | Sergiy Ruban Mykhailo Matvieiev |
| author_facet | Sergiy Ruban Mykhailo Matvieiev |
| author_sort | Sergiy Ruban |
| collection | DOAJ |
| description | The relevance of the study is due to the need to control economically important attributes of the reproduction of dairy cattle, which have a weak genetic determination and substantially depend on the management and feeding of cows. The purpose of the study is to determine the relationship between the duration of the voluntary waiting period, days open, and period of insemination, assess the impact of the father factor on them. An examination of the influence of genetic and environmental factors on the voluntary waiting period, days open, and milk productivity was conducted. A new feature is highlighted – the period of insemination, which was determined as the difference between the lengthening of the open day period and the voluntary waiting period. Studies were conducted on Holstein cows (a total of 605 heads), the average yield of which was 8777 kg. As a source of primary information, data from the Uniform Agri programme was used, which was processed using variance and correlation-regression analysis. The probable influence of the father factor on milk during 305 days of lactation (11.5%), days open (5.4%), and the period of insemination (5.2%) was revealed. A positive relationship has been established between milk yield and days open (0.115, p≤0.01), milk yield and period of insemination (0.165, p≤0.01), days open and voluntary waiting period (0.257, p≤0.01), days open and period of insemination (0.955, p≤0.01). The dependence of the duration of days open and the voluntary waiting period on such paratypical factors as the age of cows and the month of their calving was examined. There is a tendency to reduce the duration of days open and the voluntary waiting period in cows with each subsequent lactation. It was identified that the duration of the voluntary waiting period was the greatest in cows that calved in November, March, and May, and the smallest – in August. Cows that calved in March had a longer duration of days open, and with calving in February – the shortest. Conclusions are drawn about the possibility of using the value of the period of insemination in selection programmes. The possibility of using reproduction level attributes in selection programmes is proved |
| first_indexed | 2024-03-07T22:59:46Z |
| format | Article |
| id | doaj.art-065f4e6041cb469da59f07a5bf28504f |
| institution | Directory Open Access Journal |
| issn | 2706-8331 2706-834X |
| language | English |
| last_indexed | 2024-03-07T22:59:46Z |
| publishDate | 2021-02-01 |
| publisher | National University of Life and Environmental Sciences of Ukraine |
| record_format | Article |
| series | Тваринництво та технології харчових продуктів |
| spelling | doaj.art-065f4e6041cb469da59f07a5bf28504f2024-02-22T14:57:17ZengNational University of Life and Environmental Sciences of UkraineТваринництво та технології харчових продуктів2706-83312706-834X2021-02-01121283810.31548/animal2021.01.028Genetic determination of reproduction rate traits in dairy cattle breedingSergiy Ruban0https://orcid.org/0000-0002-8114-3665Mykhailo Matvieiev1https://orcid.org/0000-0003-1281-9032National University of Life and Environmental Sciences of UkraineNational University of Life and Environmental Sciences of UkraineThe relevance of the study is due to the need to control economically important attributes of the reproduction of dairy cattle, which have a weak genetic determination and substantially depend on the management and feeding of cows. The purpose of the study is to determine the relationship between the duration of the voluntary waiting period, days open, and period of insemination, assess the impact of the father factor on them. An examination of the influence of genetic and environmental factors on the voluntary waiting period, days open, and milk productivity was conducted. A new feature is highlighted – the period of insemination, which was determined as the difference between the lengthening of the open day period and the voluntary waiting period. Studies were conducted on Holstein cows (a total of 605 heads), the average yield of which was 8777 kg. As a source of primary information, data from the Uniform Agri programme was used, which was processed using variance and correlation-regression analysis. The probable influence of the father factor on milk during 305 days of lactation (11.5%), days open (5.4%), and the period of insemination (5.2%) was revealed. A positive relationship has been established between milk yield and days open (0.115, p≤0.01), milk yield and period of insemination (0.165, p≤0.01), days open and voluntary waiting period (0.257, p≤0.01), days open and period of insemination (0.955, p≤0.01). The dependence of the duration of days open and the voluntary waiting period on such paratypical factors as the age of cows and the month of their calving was examined. There is a tendency to reduce the duration of days open and the voluntary waiting period in cows with each subsequent lactation. It was identified that the duration of the voluntary waiting period was the greatest in cows that calved in November, March, and May, and the smallest – in August. Cows that calved in March had a longer duration of days open, and with calving in February – the shortest. Conclusions are drawn about the possibility of using the value of the period of insemination in selection programmes. The possibility of using reproduction level attributes in selection programmes is provedhttps://animalscience.com.ua/en/journals/tom-12-1-2021/gyenyetichna-dyetyerminatsiya-oznak-rivnya-vidtvoryennya-v-molochnomu-skotarstvireproduction rateperiod of inseminationmilk productionvoluntary waiting perioddays openholstein breed |
| spellingShingle | Sergiy Ruban Mykhailo Matvieiev Genetic determination of reproduction rate traits in dairy cattle breeding Тваринництво та технології харчових продуктів reproduction rate period of insemination milk production voluntary waiting period days open holstein breed |
| title | Genetic determination of reproduction rate traits in dairy cattle breeding |
| title_full | Genetic determination of reproduction rate traits in dairy cattle breeding |
| title_fullStr | Genetic determination of reproduction rate traits in dairy cattle breeding |
| title_full_unstemmed | Genetic determination of reproduction rate traits in dairy cattle breeding |
| title_short | Genetic determination of reproduction rate traits in dairy cattle breeding |
| title_sort | genetic determination of reproduction rate traits in dairy cattle breeding |
| topic | reproduction rate period of insemination milk production voluntary waiting period days open holstein breed |
| url | https://animalscience.com.ua/en/journals/tom-12-1-2021/gyenyetichna-dyetyerminatsiya-oznak-rivnya-vidtvoryennya-v-molochnomu-skotarstvi |
| work_keys_str_mv | AT sergiyruban geneticdeterminationofreproductionratetraitsindairycattlebreeding AT mykhailomatvieiev geneticdeterminationofreproductionratetraitsindairycattlebreeding |