Electrical Characteristics Based on Resistance and Impedance of Polish Olkuska Sheep Lambs Wool

Cholewińska, Paulina; Iwaszkiewicz, Marta; Łuczycka, Deta; Wysoczański, Tobiasz; Nowakowski, P.; Czyż, Katarzyna; Wyrostek, Anna; Bodkowski, Robert

doi:10.1080/15440478.2019.1568347

Cited by 5 publications

(7 citation statements)

References 18 publications

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“…They are often kept in large flocks, and the Olkuska and Romanov sheep are poorly adapted to such a system of maintenance [ 21 , 22 ]. Additionally, in large flocks, often in conditions of intensive breeding, animals receive more concentrated feed in the diet than in extensive breeding based mainly on roughage [ 11 , 21 ]. In the case of animals in which an increase in the amount of concentrated feed is applied, there is an increase in the level of bacteria from the Bacteroidetes phylum and a decrease in the bacteria responsible for the decomposition of roughage, which mainly belong to the Firmicutes phylum [ 22 ].…”

Section: Discussionmentioning

confidence: 99%

“…The results obtained in this study are likely to be related to the selection effect used to obtain a breed with appropriate production rates for breeders. In the case of the Romanov sheep, this was mainly the prolificacy; in the case of the Olkuska sheep, this was both prolificacy and muscularity; while in the case of the old-type Polish Merino, this was wool quality and muscularity [ 11 , 21 ].…”

Section: Discussionmentioning

confidence: 99%

“…The mentioned examples of breeds differ from each other, for example in their use and maintenance preferences. One of the breeds used in the study was a Polish Olkuska sheep, which is a prolificacy–meat breed that was created in the Olkusz district (Poland) in the 19th century [ 11 , 12 ]. The sheep have a structure typical for dairy animals, they have a large head and ears, they are polled, and they have moderate musculature.…”

Section: Introductionmentioning

confidence: 99%

“…In 2005, it was included in the Genetic Resources Protection Program because of the gene responsible for their high prolificacy and good adaptation to the environment in Poland. The aim of this program is to stabilize and preserve the unique breed genotype, increase the population, and maintain genetic variability [ 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Changes in the Levels of Firmicutes and Bacteroidetes Phyla of Sheep Feces Depending on the Breed

Cholewińska

Wołoszyńska

Michalak

et al. 2020

Animals

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Studies carried out so far have indicated the effect of the microbiome on the composition of ruminant products. Recent studies have shown that not only diet, but also genetic factors can affect the microbiological composition of the digestive system. The aim of the study was to determine the differences in the levels of selected bacterial phyla in terms of breed differences. Three sheep breeds, i.e., Olkuska, Romanov, and old-type Polish Merino, differing in their use (meat–wool, meat, prolificacy) and country of breed origin were included in the study. Sheep at the same age and of the same sex were kept for a period of 3 months in the same environmental conditions and fed the same feed in the same proportions. The study included real-time PCR (polymerase chain reaction) analysis of feces collected before the slaughter and measurements of body weight and chilled carcasses. The obtained results showed significant differences between the breeds in the levels of bacterial populations tested. There were also differences in body weight between the breeds during the first weight measurements, however, the final results did not show any differences—after three months of maintenance all of them reached similar body weights, despite differences in fecal microbiological composition. The study suggests that in addition to diet and environmental conditions, the microbiology can also be influenced by breed.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of Changes in the Levels of Firmicutes and Bacteroidetes Phyla of Sheep Feces Depending on the Breed

Cholewińska

Wołoszyńska

Michalak

et al. 2020

Animals

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“…and their microbiome. In addition, recently the “host” factor, i.e., the direct influence of an individual on its microbiome composition, has been discussed more and more frequently as a genetic factor, however, these studies are most often performed in the case of humans rather than animals [ 9 – 12 ].…”

Section: Introductionmentioning

confidence: 99%

Inter and intraspecies comparison of the level of selected bacterial phyla in in cattle and sheep based on feces

et al. 2021

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Background The microbiome of the digestive tract of ruminants contains microbial ecosystem that is affected by both environmental and genetic factors. The subject of this study concerns the influence of selected genetic factors, such as species of animals and “host” individual differences on the digestive tract microbiome composition. The results show the core microbiological composition (Firmicutes and Bacteroidetes) of ruminants digestive tract (based on feces) depending on breed and “host”. The Bacteroidetes and Firmicutes phyla are the most abundant in ruminants digestive tract. The aim of the study was to determine the differences prevalence level of Bacteroidetes and Firmicutes phyla in feces of Charolaise cattle and Polish Olkuska Sheep with respect to intra- and inter-species variability. Results The research group in the experiment consisted of animals at the age of 3 months kept in the same environmental conditions – rams of Polish Olkuska Sheep (n = 10) and Charolaise bulls (n = 10). Feces were collected individually from each animal (animals without disease symptoms were selected), living on the same environmental conditions. The analysis of the results in terms of species showed differences in the Firmicutes phylum level and Lactobacillaceae family between rams and bulls. Subsequently, the analysis performed for the “host effect” showed differentiation in the levels of the Bacteroidetes and Firmicutes phyla between individuals in a group and also between the groups. Conclusion The obtained results suggest that, apart from the diet and the environment, the species and the individual host are equally important factors influencing the microbiological composition of the digestive system of ruminants.

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Influence of selected factors on the Firmicutes, Bacteroidetes phyla and the Lactobacillaceae family in the digestive tract of sheep

Cholewińska

Wołoszyńska

Michalak

et al. 2021

Sci Rep

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In this study, we used 10 healthy sheep, which gave birth to healthy twins. Stool samples were collected from mothers and their offspring 3 times during the study (0, 28 and 56 day postpartum). Milk samples were taken from the mothers at the same time. RT PCR analysis of faeces and milk was performed in order to assess the level of bacteria from the Firmicutes and Bacteroidetes phyla including the family Lactobacillaceae (phylum Firmicutes). The composition of mother's milk was also analyzed and their BCS. The data were compiled statistically. The obtained results showed that the level of the studied groups of bacteria may change due to the change of diet. Additionally, there were significant differences between lambs and mothers in the levels of the studied groups of bacteria. Analysis also shown that in the digestive system of mothers was a smaller disproportion in the level of the studied bacterial phyla than in lambs. The results also indicated the occurrence of differences in the bacterial composition at the individual level, both in ewes and their offspring. Additionally, in the conducted experiment, there were differences in the level of Firmicutes and Bacteroidetes groups depending on the sex.

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Electrical Characteristics Based on Resistance and Impedance of Polish Olkuska Sheep Lambs Wool

Cited by 5 publications

References 18 publications

Evaluation of Changes in the Levels of Firmicutes and Bacteroidetes Phyla of Sheep Feces Depending on the Breed

Evaluation of Changes in the Levels of Firmicutes and Bacteroidetes Phyla of Sheep Feces Depending on the Breed

Inter and intraspecies comparison of the level of selected bacterial phyla in in cattle and sheep based on feces

Influence of selected factors on the Firmicutes, Bacteroidetes phyla and the Lactobacillaceae family in the digestive tract of sheep

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