Abstract
Research has been carried out on the intensive production of beef when raising dairy bulls up to 12 months of age drinking mainly dairy feed in the first 5 months of life (in group 1) and with the inclusion of a starter compound feed in the diet (in group 2). Different types of bull calves rearing in the first 5 months of life led to significant differences in the growth and development of the whole organism and all its individual organs and tissues, mainly in favour of bull calves raised with replacing part of the milk with vegetable feed, and subsequently had a decisive influence in the period from 6 up to 12 months of their life with the same type of feeding and maintenance. It has been established that the rearing system with a decrease in the drinking of whole milk and abstinence of the supply of roughage for the first 2 months of life, promotes the the growth of animals for a twelve-month period of life, leads to an increase in the yield of veal and beef meat, a decrease in feed consumption per unit of weight gain, and increasing the profitability of production by 8-9%, therefore it is recommended for production.
Highlights
A key objective of livestock research is to improve animal productivity and meat quality, taking into account efficient sustainable production and consumer preferences
Different types of bull calves rearing in the first 5 months of life led to significant differences in the growth and development of the whole organism and all its individual organs and tissues, mainly in favour of bulls raised with replacement of part of the milk with vegetable feed, and subsequently had a decisive influence during the period from 6 to 12 months of their life with the same type of feeding and keeping
At 12 months of age, the bulls of the 1st group had a live weight of 410.55 ± 4.97 kg, and the peers of the 2nd group, who had better development of all organs in the first 5 months of rearing in the milk period, had a live weight of 442.91 ± 1, 66 kg and significantly exceeded group 1 by 32.36 kg
Summary
A key objective of livestock research is to improve animal productivity and meat quality, taking into account efficient sustainable production and consumer preferences. New strategies are being developed, such as the inclusion of various plant components. Beef is a valuable dietary food; it contains complete, digestible proteins. The muscle tissue of beef obtained from bulls at 12 months of age is low in fat (1.0-3.8%), so it can be included in the diet of people as a dietary product. The palatability of beef obtained from young animals significantly depends on how the calves are fed and at what age they were slaughtered. The calf begins to switch to solid food at the age of [2,3] months, but it can be weaned from milk later [1-6]
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