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Studies on Inbreeding and Its Effects on Growth and Fleece Traits of Muzaffarnagari Sheep
Mandal, Ajoy,Pant, K.P.,Notter, D.R.,Rout, P.K.,Roy, R.,Sinha, N.K.,Sharma, N. Asian Australasian Association of Animal Productio 2005 Animal Bioscience Vol.18 No.10
A pedigree file of 4,738 records of a purebred flock of Muzaffarnagari sheep, maintained at Central Institute for Research on Goats (CIRG), Makhdoom, for a period of 24 years (1978 to 2001) was used to calculate inbreeding coefficients. The lambtraits studied were birth, 3, 6, 9 and 12 months weights as well as 6 and 12 months fleece yields. The lambs' and ewes' inbreeding coefficients ranged from 0 to 26.4% and 0 to 25%, respectively. The average inbreeding coefficient of lambs was higher than that of ewes in all periods as expected in a closed flock. Fluctuations in lamb and ewe inbreeding were observed in the periods under study. The percentages of animals in the higher inbred categories varied somewhat but generally were relatively constant. The mean rate of inbreeding was 0.63% per generation. The effective population size of the flock was 79.1. On average, an increase of 1% individual inbreeding significantly (p<0.05) reduced weights at birth by 0.010 kg, at 3 month by 0.048 kg, at 6 month by 0.075 kg, at 9 month by 0.129 kg and at 12 month by 0.112 kg. Ewes' inbreeding had non-significant effects on body weight at all ages. Effects of both lambs' and ewes' inbreeding had negative but non-significant effects on fleece weights at 6 and 12 months of age. Thus, inbreeding depression in lambs significantly reduced body weights from birth to 12 months of age but had a negligible effect on fleece yields.
Effects of Inbreeding on Lamb Survival in a Flock of Muzaffarnagari Sheep
Mandal, Ajoy,Pant, K.P.,Rout, P.K.,Roy, R. Asian Australasian Association of Animal Productio 2004 Animal Bioscience Vol.17 No.5
A pedigree file of 4,628 records of Muzaffarnagari sheep, maintained at Central Institute for Research on Goats (CIRG), Makhdoom, was used to calculate the inbreeding coefficient of the flock. The flock had been closed for about 25 years (1978 to 2002). The investigation was aimed to study the effects of inbreeding on survivability of lambs. The cumulative survivability of lambs i.e., lambs survived up to 3, 7 and 15 days, 1, 2, 3, 6, 9 and 12 months after birth was considered for the study. The average level of inbreeding of lambs was 1.60%, ranging from 0 to 26.4%. The average inbreeding coefficient of dam over the periods was 1.00% and it ranged from 0 to 25.0%. Significant (p<0.05) adverse effect of lamb's inbreeding was observed on survivability of lambs at all ages except up to 3 and 7 days after birth. On an average, 1% increase in individual inbreeding coefficient should reduce the 0.31, 0.34, 0.32, 0.31, 0.33, 0.44 and 0.49 percent lamb survival up to the age of 15 day and 1, 2, 3, 6, 9 and 12 months, respectively. Ewes inbreeding had non-significant effects on lamb survival at all ages.
Adhikari, S.P.,Pant, H.R.,Mousa, H.M.,Lee, J.,Kim, H.J.,Park, C.H.,Kim, C.S. Korean Society of Industrial and Engineering Chemi 2016 Journal of industrial and engineering chemistry Vol.35 No.-
<P>Highly porous, hollow TiO2 nanofibers (NFs) were fabricated through coaxial nozzle electrospinning using a polymer sol-gel solution of CaCO3 and TiO2 precursor. Hollow and porous TiO2 NFs were obtained by etching CaCO3 on calcined TiO2 fibers using dilute HCl. Characterization of the as-synthesized materials were performed using FE-SEM and XRD before and after 24 h of bio-mineralization. The in vitro cell culture test was performed using MC3T3-E1 osteoblast cells to assess cell response of the different NFs. The results suggested that as-synthesized porous nanotubes have better biocompatibility for bone regeneration and implantations compared to other nonporous TiO2 nanorods or NFs. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.</P>
Adhikari, S.P.,Pant, H.R.,Kim, J.H.,Kim, H.J.,Park, C.H.,Kim, C.S. Elsevier 2015 Colloids and surfaces. A, Physicochemical and engi Vol.482 No.-
A multifunctional Ag-ZnO/g-C<SUB>3</SUB>N<SUB>4</SUB> composite was hydrothermally synthesized using aqueous dispersion of g-C<SUB>3</SUB>N<SUB>4</SUB> particles with Ag and ZnO precursors by heat treatment at 130<SUP>o</SUP>C for 3h. The prepared composite was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR), and photoluminescence spectroscopy (PL) to reveal the formation of composite metal, metal oxide, and carbon nitride. Well attached ZnO microflowers were formed on the surface of g-C<SUB>3</SUB>N<SUB>4</SUB> sheets, when hydrothermal solution was treated without silver precursor. However, silver doped ZnO nanoflowers were appeared on g-C<SUB>3</SUB>N<SUB>4</SUB> sheets, when the silver nitrate containing hydrothermal solution was treated. The photocatalytic activity and antibacterial properties of as-prepared composite were studied by photocatalytic reduction of methylene blue (MB) solution and destruction of Gram-negative Escherichia coli bacteria, respectively. It was found that Ag-ZnO/g-C<SUB>3</SUB>N<SUB>4</SUB> composite exhibited better photocatalytic and antibacterial activity compared to g-C<SUB>3</SUB>N<SUB>4</SUB> and ZnO/g-C<SUB>3</SUB>N<SUB>4</SUB> particles. A sample of Ag-ZnO/g-C<SUB>3</SUB>N<SUB>4</SUB> also exhibited favorable stability and durability. The nanocomposite obtained from this simple and convenient facile one-pot synthesis may become a prospective photocatalyst.