Effect of Herbal Feed Additives on Growth and Feed Costs of Broiler Chickens
Nikolaev Anastasia Igorevna and Lavrentiev Anatoly Yuryevich*
Professor, Chuvash State Agricultural Academy, Russia
Submission: January 23, 2019;;Published: February 27, 2019
*Corresponding author: Lavrentiev Anatoly Yuryevich, Professor, Chuvash State Agricultural Academy, Russia
How to cite this article: Nikolaev Anastasia Igorevna, Lavrentiev Anatoly Yuryevich. Effect of Herbal Feed Additives on Growth and Feed Costs of Broiler Chickens. Dairy and Vet Sci J. 2019; 10(2): 555785. DOI: 10.19080/JDVS.2019.10.555785
The paper studies the effect of plant feed additive plant feed additive based on essential oils and plant substances on the growth and cost of feed, depending on the inclusion of different doses in the feed. The use of plant feed additives helps to increase the average daily live weight gain and reduce feed costs per unit of production. The best results were obtained with the addition of 0,015% of the dry matter of feed.
Keywords: Feed; Feed additive; Broiler chickens; Feed cost
Currently, broiler production is developing successfully: highly productive meat crosses have been created; growing period 6-7 weeks; live weight reaches 2.0-2.2 kg with feed costs 1.7-2.03 kg per 1kg of growth. However, the search for new methods of reducing the time of cultivation, increase in body weight and reduce the cost of feed per 1kg of growth continues [1-3]. The successful development of the broiler industry led to advances in breeding work, the use of specialized feed, compliance with the recommended conditions of detention. More than 85% of eggs and poultry meat of the total volume produced by agricultural enterprises of the Russian Federation is produced by poultry enterprises and organizations - members of the Rosptitsesoyuz. [4-7].
The emphasis on the development of the poultry industry must be done not only by the fact that this is the most “ripening” industry, but also because under the conditions of limited grain resources, the greatest return per unit of feed, labor and other resources is achieved. The costs of feed and labor in poultry farming are 2-3 times lower than in pig and cattle breeding. Dietary poultry products are much cheaper than other types of products containing animal protein. Thus, from the standpoint of the interests of the population and the state in terms of solving the food problem, the development of the poultry industry should be carried out on a priority basis. [1-3]. To this end, the use of vegetable feed additives vegetable feed additive based on essential oils and vegetable as a feed additive to increase productivity and reduce feed costs per unit of production is relevant in industrial poultry farming. Herbal feed supplement based on essential oils and vegetable substances is designed to improve the taste and increase the palatability of feed poultry. The mechanism of action is based on the joint action of several plant substances in which there are active substances that, when mutually combined, affect a certain category of animals. The content of basic active substances is guaranteed with the possibility of their detection in premixes and compound feeds by analytical methods, both in quantity and quality. The composition of the feed additive “Biostrong 510” includes essential oils, herbal plants and seasonings. The carrier and excipients - wheat bran, limestone, silica, starch.
Purpose of the Study
The purpose of this work is to establish the feasibility and efficiency of enrichment of feed used in the production technology of broiler chickens, vegetable feed additive based on essential oils and vegetable substances.
Materials and Research Methods
To study the effectiveness of feeding plant feed supplements based on essential oils and plant substances in compound feeds for broiler chickens in the conditions of the poultry farm LLC Akashevskaya Poultry Farm LLC was conducted scientific and economic experience. To carry out the experiment according to the method of analogues, 4 groups of broiler chickens (1 control and 3 experimental) KOBB 500 cross-country at the age of 50 animals each were formed. Experiments were performed from daily to 40 days of age. The experiment was carried out according to the scheme presented in Table 1. In feeding the experimental broiler chickens, full-feed feed was used: PC 5-0 (pre-start, from 1 to 7 days), PC 5-1 (starter, from 8 to 15 days), PC 5-2 (grower / height, s 16 to 22 days.), PK 6-1 (Finisher 1, from 23 to 34 days), PK 6-2 (Finisher 2, Art. 35 days). During the scientific and business experience, experimental broiler chickens were placed on deep bedding with an outdoor content.
Research results and discussion. Poultry growth is a complex biological process that occurs due to the interaction of the genotype and various technological factors (Table 2). It is possible to judge how the growth and development of broiler chickens proceeded when using vegetable feed additives based on essential oils and vegetable substances in the composition of feed, by the change in live weight during the entire growing period. Research has established that on average, the average daily gain in live weight over the entire growing period (40 days) was: in the control group - 51.46 g, in the first experimental one - 53.70 g, in the second experimental one - 55.82 g, in the third experimental one - 55.53 g.
The relative growth rate is an important indicator characterizing the intensity of the growth process of broiler chickens in a certain time period (Table 3). It is established that the relative growth rate at the beginning of the accounting period is higher, and by the end of the accounting period it decreases. In the experimental groups in the first 2 weeks the relative growth rate of broiler chickens was 163.83-166.32%, against 161.26% in the control group. The highest relative growth rate for the accounting period of growing broiler chickens was observed in the 2nd and 3rd experimental groups, who received in their diets a vegetable feed additive based on essential oils and vegetable substances in an amount of 0.015 and 0.02% per 1ton feed, respectively 192.76 and 192.71% (Table 4).
When growing experimental broiler chickens, consumption of mixed fodders was recorded. According to this indicator, the cost of feed per 1kg of weight gain was calculated. This indicator has a great impact on. In total, over the period of the experiment, 4020g of mixed feed was used for each group. In the control group, the consumption of feed from a given amount was 97.9%. Over the entire period of cultivation, the palatability of mixed feeds of the experimental groups was higher than the control group by 0.3; 0.9 and 0.8%. Feed consumption per 1 head per day in the first experimental group was 98.7g, which is more than the control group by 0.3g; in the second experimental group - 99.3g, which is more than the control group by 0.9 g and in the third experimental group - 99.2g, which is more than the control group by 0.8g. The cost of feed per 1 kg increase in live weight of broiler chickens in the control group is 1.87k, and in the experimental groups this figure was lower by 0.07; 0.13 and 0.12 kg, respectively.
Thus, the use of vegetable feed additives based on essential oils and vegetable substances contributes to an increase in the average daily gain in live weight and meat qualities of carcasses. The best indicators were obtained with the inclusion of vegetable feed additives based on essential oils and vegetable substances in the amount of 0.015% of the dry matter of the feed.
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