• Title/Summary/Keyword: Purebreed

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PRODUCTIVE PERFORMANCE OF PURE BREEDS, F1, F2 AND F3 GENERATIONS COWS RAISED IN CENTRAL CATTLE BREEDING AND DAIRY FARM OF BANGLADESH

  • Majid, M.A.;Talukder, A.I.;Zahiruddin, M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.9 no.4
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    • pp.461-464
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    • 1996
  • The data on milk yield of 1837 healthy dairy cows of different genetic groups raised in Central Cattle Breeding and Dairy farms, Savar, Dhaka for the period from 1978 to 1992 were analyzed from first to 6th lactation. The mean (SE) milk yields of 100 days, 305 days, total lactation and total life time ($928{\pm}48.6kg$, $2,188{\pm}201.81kg$, $2,661{\pm}385.46kg$ and $11,134{\pm}2,916kg$) respectively, were in pure bred Friesian found to be highest among all genetic groups. The corresponding means in indigenous cows, $334{\pm}12.92kg$, $946{\pm}64.44kg$, $635{\pm}16.31kg$ and $3,934{\pm}402.21kg$ were the lowest. Among the $F_1$, $F_2$ and $F_3$ cross-breds, the $F_1$ half bred Friesian showed the highest performance in milk yield. The half bred Friesian in successive generations yielded low milk. Similar trend was obtained incase of cross-bred with other breeds such as Jersey, Sindhi and Sahiwal. From the over all results, it can be concluded that the performance in respect to milk yield of pure bred Friesian and their $F_1$ half bred with indigenous and Sahiwal were superior over the $F_2$ or $F_3$ cross-breds between Fresian and any other breed irrespective of proportion of blood. The performance in respect to production of indigenous local cow was found to be almost similar with that of Sahiwal breed.

Disinfection of Seed Borne Black Leg Disease(Phoma wasabiae) in Wasabi(Wasabia japonica Matsum.) (고추냉이 먹들이병(Phoma wasabiae)의 종자소독 효과)

  • Moon, Jung-Seob;Kim, Hyung-Moo;Choi, Dong-Chil;Hong, Yoon-Ki;Sung, Moon-Ho;Jang, Young-Jik;Go, Bok-Rae;Oh, Nam-Ki;Choi, Yeong-Geun
    • Journal of Bio-Environment Control
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    • v.12 no.4
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    • pp.180-183
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    • 2003
  • P. wasabiae was isolated from discolored seeds of wasabi(Wasabia japonical Mtsum.) and inoculated to fresh seeds, then the effect of fungicides on suppression of diseases were determined. Emergence rate of wasabi seeds where suppressed to 52.5% by the inoculation and it reached up to 92.7% by dipping treatment of inoculated seeds ito benomyl solution. The incidence rate of black leg disease and damping off were 32.0 and 22.0%, respectively, in control treatment that sown in the soil inoculated with P. wasabiae. But dipping treatment of inoculated seeds into benomyl solution resulted in 12.0% and 10.7% in incidence rate of those two diseases, respectively.

Genome wide association study of fatty acid composition in Duroc swine

  • Viterbo, Vanessa S.;Lopez, Bryan Irvine M.;Kang, Hyunsung;Kim, Hoonseop;Song, Choul-won;Seo, Kang Seok
    • Asian-Australasian Journal of Animal Sciences
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    • v.31 no.8
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    • pp.1127-1133
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    • 2018
  • Objective: Genome wide association study was conducted to identify and validate candidate genes associated with fatty acid composition of pork. Methods: A total of 480 purebreed Duroc pigs were genotyped using IlluminaPorcine60k bead chips while the association test was implemented following genome-wide rapid association using Mixed Model and Regression-Genomic Control (GRAMMAR-GC) approach. Results: A total of 25, 29, and 16 single nucleotide polymorphisms (SNPs) were significantly associated with stearic (18:0), oleic (18:1) and saturated fatty acids (SFA), respectively. Genome wide significant variants were located on the same region of swine chromosome 14 (SSC14) that spanned from 120 to 124 Mb. Top SNP ALGA008191 was located at 5 kb near the stearoyl-CoA desaturase (SCD) gene. This gene is directly involved in desaturation of stearic acid into oleic acid. General relationship of significant SNPs showed high linkage disequilibrium thus genome-wide signals was attributed to SCD gene. However, understanding the role of other genes like elongation of very long chain fatty acids-3 (ELOVL3) located on this chromosomal segment might help in further understanding of metabolism and biosynthesis of fatty acids. Conclusion: Overall, this study provides evidence that validates SCD gene as strong candidate gene associated with fatty acid composition in Duroc pigs. Moreover, this study confirms significant SNPs near ELOVL3 gene.