Resultados de búsqueda - "selective breeding"

Farmer perspectives on desired catfish attributes in aquaculture systems in Nigeria. An exploratory focus group study por Manyise, Timothy, Komugisha, Basiita Rose, Mwema, Catherine, Oyesola, Olutokunbo, Siriwardena, Sunil, Fregene, Bernadette, Cole, Steven, Brako Dompreh, Eric, Dam Lam, Rodolfo, Lozano, Denise, Rossignoli, Cristiano, Benzie, John

“…Future research is essential to define precise objectives and scope for selective breeding program design, considering the investment necessary for the success of such programs and how they can accommodate the diverse preferences identified.…”
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Genetic evaluation of micronutrient traits in diploid potato from a base population of Andean Landrace Cultivars por Paget, M., Amoros, W., Salas, E., Eyzaguirre, R., Alspach, P., Apiolaza, L., Noble, A.D., Bonierbale, Merideth W.

“…The implications and challenges for selective breeding to enhance micronutrient content in potato tubers are discussed.…”
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On-station within-breed selection works in Africa: the case of the Horro chicken breeding program in Ethiopia por Esatu, Wondmeneh, Dessie, Tadelle

“…Since 2008, a with-in a selective breeding program was conducted at the Debre Zeit Agricultural Research Center under station with a breeding goal containing two most important traits; body weight at 16 weeks of age and egg number at 45 weeks of age. …”
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In search of a new tool for phenotyping tick resistance in cattle por Matika, O., Foster, S., Githaka, Naftaly W., Mwendia, C., Brown, H., Watson, K., Djikeng, Appolinaire, Birkett, M.

“…The high correlation coefficients (r=0.66) between repeated records with all volatile compounds support the potential predictive value for volatile compounds in selective breeding programmes for tick resistance in cattle.…”
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The genome and GeneBank genomics of allotetraploid Nicotiana tabacum provide insights into genome evolution and complex trait regulation por Zan, Yanjun, Chen, Shuai, Ren, Min, Liu, Guoxiang, Liu, Yutong, Han, Yu, Dong, Yang, Zhang, Yao, Si, Huan, Liu, Zhengwen, Liu, Dan, Zhang, Xingwei, Tong, Ying, Li, Yuan, Jiang, Caihong, Wen, Liuying, Xiao, Zhiliang, Sun, Yangyang, Geng, Ruimei, Ji, Yan, Feng, Quanfu, Wang, Yuanying, Ye, Guoyou, Fang, Lingzhao, Chen, Yong, Cheng, Lirui, Yang, Aiguo

“…Signatures of positive and polygenic selection during the process of selective breeding were detected. Our study provides insights into genome evolution, complex traits regulation in allotetraploid N. tabacum and the use of GeneBank-scale resources for advancing genetic and genomic research.…”
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Reconstruction of the X and Y haplotypes in the genetically improved Abbassa nile tilapia genome assembly por Etherington, Graham, Ciezarek, Adam, Mehta, T, Barker, T, Durrant, Alex, Fraser, Fiona, Henderson, S, Irish, Naomi, Kaithakottil, Gemy, Knitlhoffer, V, Ali, Shimaa, Trinh, Trong, Watkins, Chris, Swarbreck, David, Gharbi, Karim, Benzie, John, Haerty, Wilfried

“…The success of the Nile tilapia (Oreochromis niloticus) as an aquaculture species is partly the result of continuous selective breeding leading to high performing strains. These elite strains have been derived from breeding populations of diverse origins and crosses with other Oreochromis species. …”
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Variation in the number of expressed MHC genes in different cattle class I haplotypes por Ellis, S.A., Holmes, E.C., Staines, K.A., Smith, K.B., Stear, M.J., McKeever, Declan J., MacHugh, Niall D., Morrison, W. Ivan

“…In this study a selective breeding programme has been used to generate a number of MHC homozygous cattle expressing common serologically defined class I specificities. …”
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Performance characteristics of some eastern and southern African Zebu cattle breeds por Tawah, C.L., Rege, J.E.O.

“…Although they produce both meat and milk, Butana and Kenana manifest greater dairy aptitudes, while Western Baggara and Boran show greater beef potentials. Selective breeding is, Thus, expected to enhance their meat and dairy potentials under moderate to high standards of feeding, management and disease control. …”
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Relative performance of two Nile tilapia (Oreochromis niloticus Linnaeus) strains in Egypt: The Abbassa selection line and the Kafr El Sheikh commercial strain por Ibrahim, A.N., Abou Zaid, M.Y., Hooi Ling Khaw, El-Naggar, G.O., Ponzoni, R.W.

“…The Abbassa selection line (developed by selective breeding) and the Kafr El Sheikh commercial strain (widely used in Egypt), both Oreochromis niloticus, were compared at two stocking densities (two and four fish m−2). …”
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Mitochondrial DNA D-loop sequence analysis reveals high variation and multiple maternal origins of indigenous Tanzanian goat populations por Nguluma, A., Kyallo, Martina M., Mekuriaw, Getinet, Loina, R., Nziku, Z., Chenyambuga, S., Pelle, Roger

“…There is a lot of intermixing and high genetic variation within populations which represent an abundant resource for selective breeding in the different agro‐ecological regions of the country.…”
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Exploring future scenarios for advancing low emission development in Kenyan aquatic food systems por Ogello, Erick, Schindler, Lisa, Chan, Chin Yee, Tran, Nhuong, Obiero, Kevin Odhiambo, Outa, Nicholas, Muthoka, Mavindu, Kyule, Domitila, Atieno, Jenniffer

“…In Kenya, priority areas with high potential for low-GHG emissions in aquaculture include (i) selective breeding, (ii) solar powered recirculating aquaculture systems (RASs), (iii) aquaponics, (iv) novel fish feed alternatives, such as biofloc technology (BFT), periphyton technology (PPT) and sustainable biowaste management using black soldier fly larvae (BSFL), (v) integrated agriculture–aquaculture (IAA) and integrated multitrophic aquaculture systems (IMTAs). …”
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Evaluation of single-nucleotide polymorphisms in CAPN1 for association with meat tenderness in cattle por Page, B.T., Casas, E., Heaton, M.P., Cullen, N.G., Hyndman, D.L., Morris, C.A., Crawford, A.M., Wheeler, T.L., Koohmaraie, M., Keele, J.W., Smith, T.P.L.

“…The association of maternal alleles with meat tenderness phenotypes is consistent with the hypothesis of CAPN1 as the gene underlying the QTL effect in two independent resource populations and presents the possibility of using these markers for selective breeding to reduce the numbers of animals with unfavourable meat tenderness traits.…”
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Efficiency of selection for body weight in a cooperative village breeding program of Menz sheep under smallholder farming system por Gizaw, Solomon, Getachew, T., Goshme, Shenkute, Valle-Zárate, A., Arendonk, Johan A.M. van, Kemp, Stephen J., Okeyo Mwai, Ally, Dessie, Tadelle

“…The design of the program involved organizing villagers in a cooperative breeding group to implement selective breeding of their sheep. The program was jump-started through a one-time provision of elite rams from a central nucleus flock, but subsequent replacement rams were selected from within the village flocks. …”
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Förändrad djurhantering på gården för att uppnå minskad stress för nötkreatur på slakteriet por Johansson, Linnéa

Consultation workshop on Washera and Wollo sheep improvement In Amhara region: Summary Report por Ferede, Yeshiwas, Getachew, Tesfaye, Belay, Berhanu, Yeheyis, Likawent, Rischkowsky, Barbara, Haile, Aynalem

“…Since 2009, the International Centre for Agricultural Research in the Dry Areas (ICARDA) in partnership with the International Livestock Research Institute (ILRI), the University of Natural Resources and Life Sciences (BOKU) and Ethiopian NARS has been implementing community-based breeding program (CBBP) in Ethiopia, to support the livelihood of smallholder farmers by improving the productivity of small ruminants through selective breeding. Since then, a remarkable progress has been made in improving the livelihood of small holders in different parts of the country. …”
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Genomic architecture of selection for adaptation to challenging environments in aquaculture por Yu, Xiaofei

“…Although a reasonable genetic gain can be achieved by selective breeding, this genetic response may not be enough to adapt fish species to the effects of climate change. …”
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Maintenance of UK bread baking quality: Trends in wheat quality traits over 50 years of breeding and potential for future application of genomic-assisted selection por Fradgley, Nick, Bentley, Alison R., Gardner, Keith A., Swarbreck, Stéphanie M., Kerton, Matthew

“…Analysis of the panel showed that genetic diversity has not declined over recent decades of selective breeding while phenotypic analysis found a clear trend of increased loaf baking quality of modern milling wheats despite declining grain protein content. …”
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Investigating volatile semiochemical production from Bos taurus and Bos indicus as a novel phenotype for breeding host resistance to ixodid ticks por Matika, O., Foster, S., Githaka, Naftaly W., Owido, Gad, Ngetich, Collins, Mwendia, C., Brown, H., Caulfield, J., Watson, Kellie, Djikeng, Appolinaire, Birkett, M.

“…The high correlation coefficients (r = 0.66) between repeated records with all volatile compounds support the potential predictive value for volatile compounds in selective breeding programmes for tick resistance in cattle.…”
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Selection criteria and yield stability in a large collection of African yam bean [Sphenostylis stenocarpa (Hochst ex. A. Rich) Harms] accessions por Olomitutu, O.E., Abe, A., Paliwal, R., Abberton, M., Oyatomi, O.

“…African yam bean (AYB) is an underutilized legume with significant potential for food security in sub-Saharan Africa, yet limited research exists on optimizing its seed yield through selective breeding. In this study, the seed yield (SY) performance and relative importance of some yield-related traits on SY in AYB were assessed. …”
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Prospects for utilization of modern technologies for cattle improvement in Africa por Peters, S.O., Ibeagha-Awemu, E.M., Kwoji, I.D., Mrode, Raphael A., Ozoje, M.O., Mbah, D.A., Houaga, I., Okpeku, M., Fayemi, P.O., Trocmé, D., Opoola, O., Adeleke, M.A.

“…Other modern technological advancements, including the development of diagnostic tests for detecting genetic defects using single nucleotide polymorphisms (SNPs), using genomic markers for selective breeding, and genome editing to improve productivity and control of deleterious alleles in livestock, are also discussed. …”
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