The Effect of Humic-Fatty Acid Preparation on Production Parameters and Meat Quality of Growing Rabbits

Abstract

The Effect of Humic-Fatty Acid Preparation on Production Parameters and Meat Quality of Growing RabbitsThe aim of the study was to determine the effect of a humic-fatty acid preparation on production parameters and meat quality of rabbits. Three groups of New Zealand White rabbits were used (one control and two experimental) with 8 animals per group. The animals of group C (control) were fed standard pelleted diet, group H5 received a control diet supplemented with 5%, and group H10 a control diet with 10% humic-fatty acid preparation. The experiment was terminated after 6 weeks feeding, when rabbits were slaughtered. The experimental groups showed higher gains and a higher feed conversion ratio than the control group. The dietary inclusion of the experimental additive had a beneficial effect on the meat quality traits, such as Fe concentration, hardness and colour, but it also increased the susceptibility of fat to oxidative changes.

Compost-sourced substances (SBO) as feedstuff additives in rabbit production

“…Ozturk et al (2012) found that broilers fed these substances show lighter and darker thigh and breast meat, respectively, with a pH value and a water-holding capacity that varied according to the supplementation level. In the present work, the meat pH at 24 h (pH24) was found to be between 5.68 and 5.71, which is slightly higher than that observed by Miśta et al (2012) in New Zealand White rabbits fed diets containing 5-10 % humic-fatty acid preparations. These authors reported a greater effect on pH24 of the 10% humic-fatty acid preparation.…”

“…feed conversion). Research by Miśta (2007) and Miśta et al (2012) has shown that, by acting on intestinal mucosa and on microflora stabilization, the HUSs used as feed additives for rabbits may improve nutrient utilization. Apart from the dose, it appears difficult to compare the effects of SBOs sourced from residual vegetable matter and HUSs obtained from different soil sites and preparations, and tested on different species and under different experimental conditions.…”

Prophylaxis of microelementosis in rabbits using a mixture of glauconite, succinic, humic and fulvic acids and minerals

“…The results of our experiment are coherent with the results obtained by other scientists. Mista et al (2012) studied the effect of preparation of humic-fatty acids (HFA) on productive indicators and quality of meat of fattening rabbits. Composition of HFA was 80% of humic-mineral constituents (silicon, aluminium, iron, calcium, sodium, magnesium, phosphorus, manganese, zinc, cuprum, potassium, cobalt, selenium) and 20% of plant oils (oleic, linoleic, palmic acids).…”

“…Scientists all around the globe seek for, study and develop efficient mineral additives, preparations and biologically active substances for treatment of impaired metabolism in animals, including rabbits (Raafat, 2011;Mista & Rzasa, 2012;Elokil et al, 2019;Lieshchova et al, 2020). According to most scientists, the most effective way of preventing metabolic disorders in rabbits is use of complex preparations, and therefore the search for them still continues.…”

“…At the same time, Hassan et al (2021) determined the effectiveness of using zinc-containing supplements for the parameters and antioxidant properties of the rabbits' organism during feeding. Analysis of researches by other scientists re-vealed that using such components as humic acids, glauconite and succinic acids positively influences the digestibility of fodder (Hall, 1952), improves digestibility of minerals in the animals' intestine (Filipova, 2019) and when combined with minerals substances they improve productive parameters (tendency towards increase in weight in rabbits and higher coefficient of fodder conversion) and meat quality (increase in iron content in meat) (Mista & Rzasa, 2012;Maha et al, 2019). Zadnipryany et al (2019) determined a positive effect of succinic acid on supporting the contraction function of the cardiac muscle.…”