Assessment of biochemical blood status of highly productive cows kept under different confinement conditions
The research has been carried out with the project named as «Study of feeding of highly productive cows under different confinement systems with the account of their biochemical status and milk quality in the European North of the Russian Federation». Regular biochemical blood tests make it possible to respond, to classify and to take measures for eliminating the adverse impact in a timely way. The article describes the results of biochemical blood tests of highly productive cows in tie-up and freestall housing in different periods of their physiological cycle. The research has been conducted on an agricultural farm in the Vologda region. The reference values and the obtained indicators of biochemical parameters of animal blood have shown disorders of energy, protein, mineral and vitamin metabolism in highly productive dairy cows.
Assessment of biochemical blood status of highly productive cows kept under different confinement conditions
The research has been carried out with the project named as «Study of feeding of highly productive cows under different confinement systems with the account of their biochemical status and milk quality in the European North of the Russian Federation». Regular biochemical blood tests make it possible to respond, to classify and to take measures for eliminating the adverse impact in a timely way. The article describes the results of biochemical blood tests of highly productive cows in tie-up and freestall housing in different periods of their physiological cycle. The research has been conducted on an agricultural farm in the Vologda region. The reference values and the obtained indicators of biochemical parameters of animal blood have shown disorders of energy, protein, mineral and vitamin metabolism in highly productive dairy cows.
Оценка биохимического статуса крови высокопродуктивных коров при разных способах содержания
Исследования проводились в рамках проекта: «Изучить систему кормления высокопродуктивных коров с учетом биохимического статуса животного при разных способах содержания в условиях Европейского Севера Российской Федерации». Регулярно используя биохимические исследованиями крови, можно на ранних стадиях неблагоприятного влияния своевременно отреагировать, классифицировать и принять меры к устранению негативного воздействия. Представлены результаты биохимических исследований крови высокопродуктивных коров в разные периоды физиологического цикла, на привязном и беспривязном содержании, проведенные на базе сельскохозяйственного предприятия Вологодской области. В конечном итоге, используя референсные значения и полученные показатели биохимических параметров крови животных, можно сделать вывод о том, что у высокопродуктивных молочных коров отмечаются нарушения энергетического, белкового, минерального и витаминного обменов.
The quality of bulky feeds on the farms of the Vologda Region
The article presents the results of studying the chemical composition and quality of forage harvested on farms of the Vologda Region. As a result of detailed analysis of roughages and succulents nutritive value it has been revealed that regarding metabolizable energy and crude protein they insufficiently meet the needs of highly productive animals. The proportion of the 1st and 2nd class fodders in 2014 was as follows: 14.1% of hay, 38.5% of haylage, 44. 8% of silage. The analysis of the received data on the nutrients content in roughages and succulent fodders allows to find the causes of their low quality and plan their elimination in the future.
The quality of bulky feeds on the farms of the Vologda Region
The article presents the results of studying the chemical composition and quality of forage harvested on farms of the Vologda Region. As a result of detailed analysis of roughages and succulents nutritive value it has been revealed that regarding metabolizable energy and crude protein they insufficiently meet the needs of highly productive animals. The proportion of the 1st and 2nd class fodders in 2014 was as follows: 14.1% of hay, 38.5% of haylage, 44. 8% of silage. The analysis of the received data on the nutrients content in roughages and succulent fodders allows to find the causes of their low quality and plan their elimination in the future.
Influence of the season on the maintenance of somatic cells in the milk of black-and-white cows under various milking technologies
The article presents the results of the season dependence on the somatic cells quantity in black-and-white cow’s milk according to the milking technology.
Influence of the season on the maintenance of somatic cells in the milk of black-and-white cows under various milking technologies
The article presents the results of the season dependence on the somatic cells quantity in black-and-white cow’s milk according to the milking technology.
Influence of feed quality on milk productivity indicators
The article presents the results of studies on affecting of feed quality on the quality and quantity milk indicators in view of a livestock management method and milking technology. The analysis has revealed the relationship between the balanced diet of dairy cows and the level of milk yield. With the improvement of bulky feed quality the quality of milk has improved too. During the period under review we have noticed an increase in milk production and mass fraction of milk fat content using all management methods and technologies of milking. The content of the mass fraction of protein in milk has stayed almost on the same level, only a slight decrease has been observed in the milking parlor. The results of the research have shown that the increase of harvested feed level and its nutritional value improves milk production.
Influence of feed quality on milk productivity indicators
The article presents the results of studies on affecting of feed quality on the quality and quantity milk indicators in view of a livestock management method and milking technology. The analysis has revealed the relationship between the balanced diet of dairy cows and the level of milk yield. With the improvement of bulky feed quality the quality of milk has improved too. During the period under review we have noticed an increase in milk production and mass fraction of milk fat content using all management methods and technologies of milking. The content of the mass fraction of protein in milk has stayed almost on the same level, only a slight decrease has been observed in the milking parlor. The results of the research have shown that the increase of harvested feed level and its nutritional value improves milk production.
