Comparative characteristics of wool cover in descendants of Pamir fine-wooled sheep from a hybrid ram 3/4 Romanovskaya (RUM) × 1/4 Argali (ARCH) of the from the parent forms of sheep
https://doi.org/10.32634/0869-8155-2020-341-9-46-49
Abstract
Relevance and research material. The aim of the work is to analyze the influence of mestization of Pamir fine-wooled sheep with a hybrid of argali and Romanov sheep, carrying 3/4 of the blood of Romanov sheep and 1/4 of the blood of argali on the proportion and diameter of wool fibers of different types. The research was conducted in 2016–2018. Lambs of the Pamir fine-fleeced breed were inseminated with the sperm of a RAM-producer bearing 3/4 of the blood of the Romanov sheep and 1/4 of the blood of the argali. 5 hybrid rams were obtained and studied. As a control, 10 purebred peers of the Pamir fine-wool breed were studied. The selection of average wool samples from one-year-old rams and its analysis were carried out in accordance with GOST 17514–93. Similarity of coat characteristics was evaluated based on Euclidean distances between features in the SSPS program. Statistical processing was performed in Microsoft Excel 2007.
Results. The proportion of down fibers and their thickness in the Pamir fine-wooled sheep was 98.53 ± 0.06 % and 20.81± 0.23 microns, the Values of these indicators in the Pamir fine-wool hybrids were 92.31 ± 0.13 % and 21.90 ± 0.24 microns. Cluster analysis of the similarity of wool cover characteristics in sheep of the studied genotypes based on the calculation of Euclidean distances, performed in the SPSS program, revealed two clusters. The first cluster is formed by sheep of the Pamir fine-wool breed and their descendants from a hybrid carrying 1/4 of the argali blood and 3/4 of the Romanov sheep blood. The second cluster includes the remaining sheep genotypes. Within this cluster, a subcluster is allocated that unites argali (argali) and its hybrids of two generations. Within the subcluster, the argali and its first-generation hybrid with the Romanov sheep are the closest.
About the Authors
P. M. Klenovitsky
Federal Science Center for Animal Husbandry named after Academy Member L.K. Ernst
Russian Federation
doctor of biological sciences, professor, leading researcher
Russian Federation
doctor of biological sciences, professor, leading researcher
B. S. Iolchiev
Federal Science Center for Animal Husbandry named after Academy Member L.K. Ernst
Russian Federation
doctor of biological sciences, leading researcher
Russian Federation
doctor of biological sciences, leading researcher
N. A. Volkova
Federal Science Center for Animal Husbandry named after Academy Member L.K. Ernst
Russian Federation
doctor of biological sciences, head of laboratory
Russian Federation
doctor of biological sciences, head of laboratory
N. A. Rajabov
Federal Science Center for Animal Husbandry named after Academy Member L.K. Ernst
Russian Federation
candidate of agricultural sciences, doctoral studen
Russian Federation
candidate of agricultural sciences, doctoral studen
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Review
For citations:
Klenovitsky P.M., Iolchiev B.S., Volkova N.A., Rajabov N.A. Comparative characteristics of wool cover in descendants of Pamir fine-wooled sheep from a hybrid ram 3/4 Romanovskaya (RUM) × 1/4 Argali (ARCH) of the from the parent forms of sheep. Agrarian science. 2020;(9):46-49. (In Russ.) https://doi.org/10.32634/0869-8155-2020-341-9-46-49
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