Nowadays, a new science-based approach to animal feeding is required to create conditions for the full realization of their potential with intensive use of livestock. This research was an experimental test that aimed to evaluate effective feed intake of energy supplements TirsanaBSC by high-yield Ayrshire cows in the transit period. As a result of the supplement application the daily milk yield increased during 100 days of milking cows. The amount of milk fat and protein increased as well. There was an increase in carotene, glucose, pyruvic acid in the blood of experimental cows and reducing non-esterified fatty acids (NEFA). Adding the supplement Tirsana BSC to the diet of highly productive Ayrshire cows improved the quality of their colostrum.
Приведены результаты научно-хозяйственного опыта, проведенного в условиях хозяйства в Вологодской области. Изучено влияние жидкой энергетической добавки на основе смеси пропиленгликоля, глицерина и гепатопротектора на продуктивность и качество молока коров айрширской породы с удоем 8,8 тыс. кг за лактацию и их воспроизводительные способности. Исследования показали, что поедаемость кормовой смеси коровами позднего сухостоя и в раздой составляет в среднем 88—90%, прослеживается тенденция к лучшему поеданию корма животными опытных групп при применении изучаемой энергетической добавки. Подтверждением этому являются результаты наблюдений за пищевым поведением коров в начале лактации. Подопытные животные затрачивали ежедневно на потребление кормов 6,5 ч за 17—20 приемов. В разрезе групп установлена достоверная разница по продолжительности жвачки. Суточные удои коров опытных групп за первые 100 дней лактации достоверно превышали продуктивность контрольных животных на 12,4 и 13,2% (39,1 и 39,4 кг против 34,8 кг). Содержание в молоке белка и жира в разрезе групп резких отличий не имело. Увеличение продуктивности и снижение продолжительности сервис-периода на 19 дней (со 102 до 83 дней) выявлено при использовании изучаемой добавки в количестве 300 г на 1 голову в сутки в течение 3 мес, включая транзитный период. Эффективность применения добавки очевидна и с экономической стороны: в период раздоя на каждую корову только за счет увеличения надоев в опытных группах получена дополнительная выручка, которая в 2,7 раза превосходила затраты на энергетик. The article presents the results of scientific and economic experience conducted in the conditions of a farm in the Vologda region. The effect of a liquid energy Supplement based on a mixture of propylene glycol, glycerol and hepatoprotector on the productivity and quality of milk of Ayrshire cows with a milk yield of 8.8 thousand kg per lactation and their reproductive abilities was studied. Studies have shown that the feed mixture is eaten by cows of late dead wood and in the distribution is on average 88—90%, there is a tendency to better feed consumption by animals of experimental groups when using the studied energy Supplement. This is confirmed by the results of observations of the feeding behavior of cows at the beginning of lactation. Experimental animals spent 6.5 hours per day on feed consumption for 17—20 meals. In the context of groups, a significant difference in the duration of chewing gum was established. The daily milk yield of cows in the experimental groups for the first 100 days of lactation significantly exceeded the productivity of control animals by 12.4 and 13.2% (39.1 and 39.4 kg versus 34.8 kg). The content of protein and fat in milk in the context of groups had no sharp differences. An increase in productivity and a decrease in the duration of the service period by 19 days (from 102 to 83 days) was revealed when using the studied Supplement in the amount of 300 g per 1 head per day for 3 months, including the transit period. The effectiveness of the additive is also obvious from the economic side: during the milking period, additional revenue was obtained for each cow only due to an increase in milk yield in the experimental groups, which was 2.7 times higher than the cost of energy.
A key factor in realizing the genetic potential of animal productivity is their complete feeding, in the organization of which the leading role belongs to the intensive system of feed production and the feed industry including the development of different balancing additives. In highly productive herds it is most problematic to balance the rations of down-calving cows and after their calving, since there is a physiological limitation of feed consumption and as a result a lack of energy and nutrients. At this stage there is a negative energy balance. After calving (and in general during the period of increasing the milk yield) to achieve high milk yields it is necessary to provide animals with feed of increased energy value, such as concentrates. However, high consumption of concentrated feed leads to acidosis and other diseases, which is accompanied by a decrease in milk yield and fertility. Special feed supplies are required to replenish energy. Due to the relevance and practical significance of the issue we have carried out a research aimed at studying the effect of the energy additive Tirzana BSK on the productivity of Ayrshire cows. The results of research on the use of the energy energy additive Tirzana BSK during late dry period and during the period of increasing the milk yield for Ayrshire cows with the yield of 8800 kg per lactation have been presented in the article. It has been found that the introduction of Tirzana BSK contributes to increasing milk productivity, reducing expenditures of feed per unit of production and reducing the time from calving to effective insemination. It has been experimentally proved that it is more effective to use the additive from late dry period to the middle of the period increasing the milk yield, which determines an increase in milk yield by 12,4 %, a reduction in the duration of the open days period by 19 days, and the increase in the profitability of milk production from 25,1 to 31,7 %.
Уровень развития кормовой базы определяется как общим производством кормов, так и их качеством. Оба эти показателя в равной мере влияют на эффективность производства молока и являются неотъемлемыми факторами кормопроизводства на современном уровне. Поэтому в ООО Монза выделена большая площадь сельскохозяйственных угодий: под пашню 2478 га, под сенокосы 131 га. Кормовая база предприятия включает производство кормов: сена, сенажа, силоса, соломы, зелёной массы многолетних трав и концентрированных кормов. Кормами собственного производства всё поголовье обеспечено на 100 потребности. Количество заготовляемого силоса в 2018 году по сравнению с 2016 годом возросло на 3233 т. Качество кормов за последние 2 года также незначительно улучшилось. Так, питательность силоса в 2018 по сравнению с 2016 годом возросла на 0,4 0,6 МДж. Концентрация сырого протеина также увеличилась в 2018 году по сравнению с 2016 годом на 0,8, а содержание сырой клетчатки уменьшилось на 1,7 2,2. Можно сделать вывод, что на предприятии стали больше обращать внимание на сроки заготовки и фазу вегетации трав при скашивании на силос. Обеспеченность обменной энергией стада из основных объёмистых кормов за последние 3 года выросла на 3,8, но остаётся на очень низком уровне и в 2018 году составила 32,3 от общей потребности для коров с продуктивностью 8500 кг молока за лактацию. Приведены результаты исследования по использованию объёмистых кормов в рационах высокопродуктивных коров чёрнопёстрой породы. Исследования включали анализ химического состава кормов собственного производства, их качественных характеристик и молочной продуктивности коров. Выяснили, что корма собственного производства имеют недостаточно хорошее качество, что приводит к повышенному расходу концентрированных кормов и закупке дорогостоящих добавок. Availability of forage resources is related to both feed production and quality. These parameters equally affect milk and fodder production efficiencies. OOO Monza has large field area of 2478 ha and grassland area of 131 ha. It produces hay, haylage, silage, straw, green mass of perennial grasses and concentrated feedstuff. The farm livestock is fully supplied by the ownproduced forage. Silage production increased by 3233 t in 2018 compared to 2016. Forage quality insignificantly improved for the last 2 years. Nutritional value of silage grew by 0.4 0.6 MJ in 2018. Crude protein content increased by 0.8 while crude fiber concentration reduced by 1.7 2.2. Harvesting date and crop growing stage were optimized for silage production. Even though exchange energy grew by 3.8 for the last 3 years its yield was still insufficient, satisfying only 32.2 of total cow demand under milk productivity of 8500 kg per lactation. The article presents the results on effectiveness of bulk fodder in blackandwhite cow diet. The investigation tested feed chemical composition, quality and effect on milk productivity. Ownproduced forage showed low quality leading to high utilization of concentrated feedstuff and expensive additives.
The association between science and production is gradually developing due to the arrival of new information and discoveries about the composition of feed and the transformation of nutrients in the body of cows. One of the most important links in the formation of animal productivity during lactation is the use of new feed products and feed additives in feeding. The results of scientific and economic experiment on the use of protein concentrate “Agro-Matic” in feeding of highly productive lactating cows of Ayrshire breed are contained the article. The inclusion of protein concentrate “AgroMatic” in the daily rations of lactating cows in the amount of 1,0 and 1,5 kg/head/day increases the level of indigestible protein by 6,1 and 8,9 %, respectively. The use of protein concentrate in the amount of 1,5 kg in cows feeding helps to increase the digestibility of nutrients in rations the quality of milk and the productivity of cows. When feeding protein concentrate in the amount of 1,5 kg the milk productivity of cows during the period of increasing the milk yield was 4297,5 kg of milk, the yield of essential and dispensable amino acids with milk was significantly higher. The yield of milk protein in cows that received protein concentrate in the ration in the amount of 1,0 kg was 137,7 kg, and when using 1,5 kg – 141,4 kg, which was signifi cantly higher than in the control group by 10,2 and 13,6 kg, respectively. The use of protein concentrate “Agro-Matic” in the ration had a benefi cial eff ect on the digestibility of protein. The digestibility of raw protein of the feed mixture with the inclusion of 1,5 kg of protein concentrate was 71,1 % compared to 68,0 % in the basic ration, which are used at the Maysky complex in the “Plemzavod Maysky”
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.