Correlation of the iron level in the bristles of Kemerovo pigs with macro- and essential microelements

In the article, the authors presented the results of assessing the level of manganese in the skeletal muscles, liver, kidneys, and bristles of Landrace pigs. The studies were performed on clinically healthy six-monthold animals from a large pig farm in the Altai Territory. The conditions of keeping the animals corresponded to the standard ones, the feeding was typical for meat fattening. Elemental analysis of samples of parenchymal organs and muscle tissue was performed using atomic absorption spectrometry with flame and electrothermal atomization, bristles - by atomic emission spectrometry with inductively coupled plasma. Data processing was performed using Microsoft Office Excel and the R programming language in the data analysis environment RStudio version 1.3.1093 (2009–2020 RStudio, PBC). The authors found that the distribution in all cases was normal, and the dispersions are not homogeneous. Based on the average value and median, an increasing ranked series of manganese content in organs and tissues were established: skeletal muscles < kidneys < liver < bristles, in numerical terms: 1: 12.5: 15.7: 207. Manganese levels in skeletal muscles, kidneys, liver, and bristles were 0.13; 1.62; 2.04, and 26.91 mg/kg, respectively. Greater homogeneity is characteristic of the accumulation of microelements in the muscles and kidneys. Based on the Kruskal-Wallis test, it was established that the accumulation of manganese differs in the examined organs and tissues of pigs (H = 88.4, df = 3, p < 0.0001). Pairwise comparison showed significant differences for all pairs, except for the liver-kidney pair. Based on the cluster analysis, the closest results are typical for the liver and kidneys; the bristle is a separate opposite cluster, characterized by a significant level of manganese accumulation. The results obtained can serve as a preliminary corresponding physiological norm for the concentration of manganese in individual organs, tissues, and skin derivatives of Landrace pigs under the conditions of Western Siberia.

Manganese content in some organs and tissues of Landrace pigs

Zaiko

Tarasenko

2022

Regularities of cadmium accumulation in organs and bristle of Kemerovo breed pigs

Nazarenko

Zaiko

Konovalova

et al. 2023

The results of the atomic absorption analysis of the elemental status of pigs of Kemerovo breed are presented. The studies were carried out in pig farm in Kuzbass. Organ samples from pigs were taken immediately after slaughter and analyzed at the Analytical Center for Collective Use of the Sobolev Institute of Geology and Mineralogy (ACCU Sobolev IGM SB RAS) by atomic absorption spectrometry with flame and electrothermal atomization using SOLAAR M6 spectrometer (USA) according to State Standard 26929-94 “Raw food and food products. Cadmium levels in bristles (W=0.94, p>0.05) and kidneys (W=0.92, p>0.05) were characterized by normal distribution. In the breeding zone of the Kemerovo breed, the content of heavy metals in soil, water and feed was studied, which did not exceed the MPC. The mean cadmium levels in the kidneys and spleen were within the standard intervals established for pigs. Cadmium levels in the spleen and bristle were characterized by a smaller interquartile range relative to the kidneys. The obtained data on the concentration of cadmium in the organs and bristles of pigs of the Kemerovo breed can be used for the intravital assessment of the interior of animals.

Cadmium level in parenchymatous organs of landrace pigs

Zayko,

Konovalova,

Petukhov

2024

The results of assessing the concentration of cadmium in the liver, kidneys, lungs, and spleen of Landrace pigs are presented. The studies were conducted on clinically healthy 6-month-old animals raised in a sizeable pig-breeding enterprise in the Altai Territory. The conditions for keeping the animals were standard; standard feeding was used for meat fattening. The level of cadmium in parenchymal organs was determined using inductively coupled plasma atomic emission spectral analysis. Data processing was performed using Microsoft Office Excel, the R programming language, and the RStudio data analysis environment version 2022.07.2+576 (RStudio, PBC). The need to use nonparametric criteria has been established. Considering the average values and medians, the authors formed an increasingly ranked series of cadmium content in organs: lungs < spleen < liver < kidneys, in numerical terms, focusing on the first statistical indicator: 1: 1.1: 2.1: 36.0.