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AbstractThis study was conducted to determine the correlation among serum biochemical indices, slaughter traits, texture characteristics and water-holding capacity in Tan sheep. Eighty Tan sheep aged 4–6 months were selected. Blood samples were collected from live animals to analyse serum biochemical indices. The slaughter traits, texture characteristics and water-holding capacity of meat were assessed after slaughter. There were highly significant correlations (p<.01) and high linear regression Rvalues among serum biochemical indices, slaughter traits, meat texture characteristics and water-holding capacity in Tan sheep. Therefore, this study has demonstrated that the meat qualities of Tan mutton may be evaluated by the serum biochemical indices of live Tan sheep.HighlightsThis study was conducted to determine the correlation among serum biochemical indices, slaughter traits, texture characteristics and water-holding capacity in Tan sheep.This study has demonstrated that meat qualities of Tan mutton may be assessed by the serum biochemical indices of live Tan sheep.It is necessary to determine slaughter traits, meat texture characteristics and water-holding capacity of meat, which are major indicators for assessing meat and meat products by consumers.

This paper discusses some spectral properties of classoperators for,,, and. It is shown that ifis a classoperator, then the Riesz idempotentofwith respect to each nonzero isolated point spectrumis selfadjoint and. Afterwards, we prove that every classoperator has SVEP and property, and Weyl's theorem holds forwhen.

Firstly, we will show the following extension of the results on powers of-hyponormal and-hyponormal operators: letandbe positive integers, ifis-hyponormal for, then: (i) in case,andhold, (ii) in case,andhold. Secondly, we will show an estimation on powers of-hyponormal operators forwhich implies the best possibility of our results. Lastly, we will show a parallel estimation on powers of-hyponormal operators as follows: let, then the following hold for each positive integerand: (i) there exists a log-hyponormal operatorsuch that, (ii) there exists a-hyponormal operatorsuch that.