1(82), 2015
UNC 636.4.082.001.573

Автор
V. Lykhach
S. Kramarenko
P. Shebanin
Mykolaiv national agrarian univercity

Abstract

V. Lykhach, S. Kramarenko, P. Shebanin. The use of entropy-information analysis to assess the reproductive qualities of crossbred sows
The possibility of using entropy and information analysis (EIA) in various fields of biological science has been noted by many authors. However, most of these works showed examples of the application of EIA in the study of discrete (qualitative) characteristics. Modification of EIA for quantitative traits using the integrated density estimates of the distribution of standardized values, gave the opportunity to expand the application of this method for the evaluation of various quantitative indicators of efficiency of agricultural animals. For carrying out entropy and information analysis using a modification for quantitative traits were used data on age-related dynamics of the reproductive qualities of two-breed sows: large white (LW) and Ukrainian meat (UM) in combination with boars of Landrace (L). The reproductive traits of sows was measured in terms of total number of born piglets (TNB), number of born alive piglets (NBA) and number of weaned piglets (NW). The animals belonged to the LLC “Tavriysky pigs”, Kherson region. Were used for research data on productivity according to the results of the first seven farrowing eighty sows each of the genotypes. It is proved that the degree of determinacy reproductive characteristics, including age-related dynamics, influenced by the breed sows. It is established that the highest level of order is characterized by the number of piglets at weaning (NW). Therefore, this indicator should be used as a reference when assessing the reproductive characteristics of sows.
Keywords: entropy and information analysis, reproductive traits, crossbred sows, age dynamics.

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Keywords
entropy and information analysis, reproductive traits, crossbred sows, age dynamics.

V. Lykhach, S. Kramarenko, P. Shebanin. The use of entropy-information analysis to assess the reproductive qualities of crossbred sows.

References:

1. Byr S. Kybernetyka y upravlenye. — M. : YL, 1963. — 168 s.
2. Herasymov Y. H. Эntropyia byolohycheskykh system // Problemы starenyia y dolholetyia. — 1998. — T. 7. — № 2. — S. 119-126.
3. Kramarenko S. S. Osobennosty yspolzovanyia эntropyino-ynformatsyonnoho analyza dlia kolychestvennыkh pryznakov byolohycheskykh obъektov // Yzvestyia Samarskoho nauchnoho tsentra Rossyiskoi akademyy nauk. — 2005. — T. 7. — № 1. — S. 242-247.
4. M’iasni henotypy svynei pivdennoho rehionu Ukrainy / [V. S. Topikha, R. O. Trybrat, S. I. Luhovyi ta in.]. — Mykolaiv : MDAU, 2008. — 350 s.
5. Ynformatsyonno-statystycheskyi analyz mendelyruiushchykh y polyhennыkh pryznakov v populiatsyiakh selskokhoziaistvennыkh ptyts: metodycheskye rekomendatsyy / [Iu. A. Riabokon, N. Y. Sakhatskyi, P. Y. Kutniuk y dr.]. — Kharkov, 1996. — 40 s.
6. Vykorystannia ta udoskonalennia henofondu svynei v umovakh TOV «Tavriiski svyni» // V. S. Topikha, V. Ia. Lykhach, S. I. Luhovyi, O. I. Zahaikan // Naukovyi visnyk «Askaniia-Nova». — 2012. — Vyp. 5. — Ch. II. — S. 283—289.
7. Risk factors for stillbirth and foetal mummification in four Brazilian swine herds / V. F. Borges, M. L. Bernardi, F. P. Bortolozzo [et al.] // Prev. Vet. Med. — 2005. — Vol. 70. — P. 165-176.
8. Direct, maternal and nurse sow genetic effects on farrowing-, preweaning- and total piglet survival / E. F. Knol, B. J. Ducro, M J. A. van Arendonk [et al.] // Livest. Prod. Sci. — 2002. — Vol. 73. — Р. 153-164.