RESUMO
A study on the study of the qualitative assessment of the behavior of dairy cattle according to the VAS system (visual analog scale) was conducted in the LLP "Agrofirme "AKAS", located in the West Kazakhstan region of the Republic of Kazakhstan. According to research, it follows that different seasons of time affect the conditions of detention in different ways. So, for the maintenance of cows in the summer, the distance of avoidance at the feeding site according to test 1 and 2 is within 3 meters, whereas in spring and autumn it was 2 meters. The difference between the reference norm and the household ration has been determined, from which it follows that the feeding ration of the farm corresponds to the norm of 12 kg of milk yield per head per day. The vitamin and mineral premix developed by us includes vitamins, minerals, including macro-microelements. The premix also includes components in the following ratio: phosphorus (P) - 5% of monocalcium phosphate, vitamin A - 1.2% of rovimix A 1000, vitamin D3 - 0.64% of rovimix D3, vitamin E - 16% of rovimix E-50, manganese (Mn) - 22.2%, copper (Cu) - 9%, zinc (Zn) - 19%, iodine (I) - 0.28%, selenium (Se) - 7.65 and cobalt (Co) - 0.14%, and feed chalk - 5% and chickpea flour - 13.89% are used as fillers as a source of calcium (Ca).. The average daily milk yield at the beginning of the experiment in both study groups was in the range of 10.6-10.8 kg. At the end of the experiment, the average daily milk yield in animals receiving premix exceeded their peers from the control group by 1.4 kg or 1.6%. According to the chemical composition of milk, the indicators of fat, protein and lactose were higher in the cows of the experimental group compared with the peers of the control group (for fat - 3.92>3.37, for protein - 3.32>3.23, for lactose - 4.16>4.01).
Assuntos
Lactação , Selênio , Feminino , Bovinos , Animais , Lactose , Tecnologia Digital , Vitaminas , Reprodução , Dieta/veterinária , Ração Animal/análiseRESUMO
This article presents the results of the culling of cows of the Simmental and Holstein breeds in the Republic of Kazakhstan. The purpose of the research was to study the actual number of culled cows of dairy productivity in the farms of the Republic of Kazakhstan to determine its norm. The object of research were cows of Simmental (18,462 heads) and Holstein (17,862 heads) breeds in various regions of the republic. The research was carried out according to generally accepted zootechnical methods using statistical data processing using RStudio. The results of the studies showed that the percentage of culling increases in cows of the Simmental and Holstein breeds and amounts to 19.7 and 22.9%, respectively. The analysis of the retirement of full-aged cows of the Simmental breed showed that the main causes are hoof diseases (up to 26%), low reproductive function (up to 21%), low productivity (up to 18%). Holstein cows had an increase in disposals in all categories except for disposals for various reasons, for problems with reproduction, the disposal is up to 21%. The determination of the relationship between productivity and retirement in the Simmental breed cows showed that with age and increased lactation, the proportion of retired cows also increases, in the Holstein breed, with increased productivity, the percentage of culled animals also increases.
Assuntos
Clima , Reprodução , Feminino , Animais , Bovinos , Cazaquistão , FazendasRESUMO
This article presents the results of the culling of cows of the Simmental and Holstein breeds in the Republic of Kazakhstan. The purpose of the research was to study the actual number of culled cows of dairy productivity in the farms of the Republic of Kazakhstan to determine its norm. The object of research were cows of Simmental (18,462 heads) and Holstein (17,862 heads) breeds in various regions of the republic. The research was carried out according to generally accepted zootechnical methods using statistical data processing using RStudio. The results of the studies showed that the percentage of culling increases in cows of the Simmental and Holstein breeds and amounts to 19.7 and 22.9%, respectively. The analysis of the retirement of full-aged cows of the Simmental breed showed that the main causes are hoof diseases (up to 26%), low reproductive function (up to 21%), low productivity (up to 18%). Holstein cows had an increase in disposals in all categories except for disposals for various reasons, for problems with reproduction, the disposal is up to 21%. The determination of the relationship between productivity and retirement in the Simmental breed cows showed that with age and increased lactation, the proportion of retired cows also increases, in the Holstein breed, with increased productivity, the percentage of culled animals also increases.
Este artigo apresenta os resultados do abate de vacas Simental e Holstein na República do Cazaquistão. O objetivo do estudo foi estudar o número real de vacas abatidas na direção da produtividade leiteira nas fazendas da República do Cazaquistão para determinar sua norma. O estudo incluiu vacas Simental (18.462 cabeças) e Holstein (17.862 cabeças) em diferentes regiões da República. A pesquisa foi conduzida de acordo com métodos zootécnicos geralmente aceitos, adotando o processamento estatístico de dados, usando o RStudio. Os resultados da pesquisa mostraram que as vacas Simental e Holstein aumentaram a taxa de abate para 19,7% e 22,9%, respectivamente. A análise da alienação de vacas Simental de meia-idade mostrou que as principais causas são doenças dos cascos (até 26%), baixa função reprodutiva (até 21%) e baixa produtividade (até 18%). As vacas Holstein tiveram um aumento na alienação em todas as categorias, exceto a alienação por várias razões; devido a problemas reprodutivos, a alienação é de até 21%. A determinação da relação entre a produtividade e a alienação em vacas Simental mostrou que a proporção de vacas eliminadas aumenta com a idade e o aumento da lactação, enquanto a porcentagem de animais eliminados aumenta com a produtividade na raça Holstein.