The effect of humic acids on the natural resistance of the body of broiler chickens and the quality of their meat

K. Korsakov¹, I. Simakova¹*, A. Vasilyev¹, S. Lifanova² and L. Gulyaeva²

¹Federal State Budgetary Educational Institution of Higher Education Saratov State Agrarian University named after N.I. Vavilov, Department of Veterinary Medicine, Biotechnology and Food Technology, Sokolovaya street, 335, RU410000 Saratov, Russia
²Federal State Budgetary Educational Institution of Higher Education Ulyanovsk Agrarian University named after P.A. Stolypin, Department of Food Production Technology, Noviy Venets Boulevard, 1, RU432017 Ulyanovsk, Russia
*Correspondence: simakovaiv@yandex.ru

Abstract:

The aim of the work is to study the effectiveness of the concentration of humic acids of Reasil Humic Vet feed additive on the increase of the feed bioavailability for poultry and the probability of its negative impact on the safety and marketable characteristics of the final product. Studies were conducted on the basis of the Saratov State Agrarian University in two similar groups of broiler chickens ‘Cobb 500’, 100 heads each. Poultry feeding consisted of the same complete feed, but the drinking water for the broilers of the experimental group was enriched by humates in the amount of 0.5 ml L^-1. Based on the data obtained by daily weighing of the poultry and considering the feed intake, a positive trend of the influence of the feed additive on the average daily weight gain and feed conversion per unit of production was noted. The results of slaughter and anatomical cutting of broiler carcasses revealed that metabolic processes were more active in the body of an experimental poultry, reflected in the intensive growth of muscle tissue and fat deposition, which contributed to an increase in the yield of edible parts from carcasses by 9.9%. Studies of composition of broiler blood indicate non-toxicity of the recommended concentration of humates in the feed additive, its stimulation of non-specific resistance of the organism, contributing to the functioning of the immune system and the development of internal organs and, as a consequence, ensuring the safety of the products obtained from them.

Key words:

body resistance, humic acid, live weight, muscle and adipose tissue, Reasil Humic additive, Safety

The role of field beans in nutrition of Boer goat

E. Aplocina

Institute of Agrobiotechnology, Latvia University of Agriculture, Liela street 2, LV3001 Jelgava, Latvia
Correspondence: elita.aplocina@llu.lv

Abstract:

A study on the effective using of field beans to Boer mother goats feeding was carried out on a farm whose main activity is the production of goat meat. Since the Boer goat breed is still very rare in Latvia, there is a lack of experience in the feeding of meat goat. Goat productivity was analyzed according to the birth weight of goat kids and kids live weight at 50 days, as well as the average live weight gain of kids per day up to 50 days old. For control group goats a relatively high energy shortage (14% of the daily requirement) and protein deficiency (29% of the daily requirement) were observed in feed ratio. Adding fodder beans and maize into the feed, it is possible to optimize feed ratio for energy and protein supply. Experimental activities had shown that by the inclusion of field beans and maize in feed ratio of goat’s mothers, the average increase in live weight of kids up to 50 days old was by 58.2% higher (P < 0.05) than that of kids in which goats’ mothers received only oats as concentrated feed. By the optimization of feed ratio, it is possible to achieve a higher milk productivity of goat mothers and hence larger live weight gain for kids, which reduces the feed costs by up to 9% for 1 kg of live weight. By optimizing the breeding and feeding of mother goats and kids, it is possible to achieve greater animal fast-growing, hence, more efficient and cost-effective management.

Key words: