Browsing by Author "Saravanan, R, et al.,"
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ArticleItem Open Access Identification of nucleotide variation in CatSper2 gene in crossbred breeding bulls(2021) Ganapathi, P; Murali, N; Saravanan, R, et al.,; TANUVASAmong the many genes governing sperm functions, a group of genes have been reported to control ion channels that play an important role in sperm motility. They were named the cation channel of sperm (CatSper) and further known to have five members, viz. CatSper 1, 2, 3, 4, and β (7). Any mutations in them were proposed as the cause of poor motility in sperms and infertility. Nucleotide alterations pertaining to Catsper gene cause poor motility in sperm production and infertility. Among the calcium-permeable channels present on sperm cells, only CatSper1 and 2 are known to be indispensable for male fertility. Exon 2 of CatSper2 gene was amplified and sequenced. There are two nucleotide changes observed, conversion of C nucleotide in 276th position to A nucleotide (g.276C>A) (Transversion) and conversion of A nucleotide to C in the 277th position (g.277A>C). In the translation process, the nucleotide changes at 276th and 277th position (g.276C>A and g.277A>C) does not reveal any amino acid change in the amino acid sequence, in both Jersey crossbred bulls and Holstein Friesian crossbred bull.ArticleItem Open Access STUDY ON WOOL QUALITY AND TRADITIONAL PATTERN OF WOOL WEAVING FROM TIRUCHY BLACK SHEEP IN TAMIL NADU(2021) Gopu, P; Murali, N; Saravanan, R, et al.,; TANUVASA study was conducted to analyse the wool yield and quality of Tiruchy Black sheep and traditional pattern of wool weaving in Tamil Nadu. The colour of the wool shorn was black. The overall annual greasy fleece yield of Tiruchy Black sheep was 505.31±3.89 g. The mean staple length at 2-, 4-, 6-tooth and full mouth stages were 4.21±0.36, 4.31±0.42, 4.42±0.51 and 4.71±0.54 cm, and mean fibre diameter were 59.64±2.36, 57.74±1.18, 56.51±2.09 and 57.74±1.31 µ, respectively. From the base line survey, it was found that coarse wool of Trichy Black sheep is used in the preparation of blankets (kambli)) by traditional pattern of wool weaving which includes wool cleaning and softening, carding, spinning wrapping of yarn and finishing by coloured acrylic yarn. The survey results showed that traditional pattern of wool weaving is providing self-employment and upliftment of socio economic status of rural youth in Tamil Nadu.