Resultados de búsqueda - "selective breeding"

Comparison of different poultry breeds under station and on-farm conditions in Ethiopia por Wondmeneh, E., Waaij, Liesbeth van der, Udo, H.M.J., Dessie, Tadelle, Arendonk, Johan A.M. van

“…A selective breeding program was implemented to improve the performance of indigenous chickens. …”
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Genetic and phenotypic characterization of African goat populations to prioritize conservation and production efforts for small-holder farmers in sub-Saharan Africa por Huson, Heather J., Sonstegard, T.S., Silverstein, J., Woodward-Greene, M. Jennifer, Masiga, C., Muchadeyi, F.C., Rees, J., Sayre, B., Elbetagy, A., Rothschild, Max F., Mujibi, F.D.N., Okeyo Mwai, Ally, Kemp, Stephen J., Colli, L., Ajmone-Marsan, P., Crepaldi, P., Abegaz, Solomon, Sölkner, Johann, Tassell, C.P. van, African Goat Improvement Network

“…The immediate goal is to characterize African goat populations to prioritize conservation and production efforts and to develop genomic tools for use in selective breeding programs. We have established a standardized phenotypic scoring system to characterize goats including geographical information data, body measurements, photo characterization, and DNA. …”
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Reducing the plant damage caused by the zoophytophagous predator Nesidiocoris tenuis through genetic selection por Urbaneja, Alberto, Ortells-Fabra, Raúl, Ruiz-Rivero, Omar, Chinchilla-Ramírez, Milena, Alonso-Valiente, Miquel, Pérez-Hedo, Mertixell

“…Our results highlight the potential of selective breeding for improving biocontrol traits of interest in N. tenuis and open the door to differentiating selected strains of N. tenuis using molecular techniques.…”
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Candidate genes and bioinformatic analysis of biological pathways for epistatic regulation of growth in chicken por Ahsan, Muhammad

“…Selective breeding programmes for desired phenotypes in animals provide a good resource for researchers to understand the genetic basis underlying those phenotypes. …”
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Genetic diversity and within-breed variation in three indigenous Ethiopian sheep based on whole-genome analysis por Asmare, Sisay, Alemayehu, Kefyalew, Mwacharo, Joram, Haile, Aynalem, Guangul, Solomon, Ahbara, Abulgasim

“…Designing conservation-based within-breed sheep selective breeding programs are recommended considering economically important traits into account.…”
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Response of maiden ewes to the ‘ram effect’ is a robust management practice and a candidate selection trait for enhanced reproductive performance in drylands por Ben Salem, Imene, Rouatbi, Mariem, Mlika, Mariem, Getachew, Tesfaye, Govind, Ajit, Haile, Aynalem, Raggem, Mohamed, Lahsoumi, Ridha, Rekik, Mourad

“…Thus, the interval between ram introduction and oestrus is a good candidate for selective breeding for high fertility of maiden ewes in drylands mated out-of-season using the ‘ram effect.’…”
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Ethiopian National Red Meat Development Strategy ( 2025-2031) por Berhie, Asmelash, Guangul, Solomon, Alemu, Tesfaye, Galmessa, Ulfina, Lema, Tesfaye, Asefa, Melake, Urga, Kebeki, Fufa, Leta, Getachew, Tesfaye, Belay, Berhanu, Tolera, Adugna, Yeheyis, Likawent, Admasu, Berhanu, Kassahun, Amare, Legesse, Getachew, Dolebo, Asrat, Mekasha, Yoseph, Haile, Aynalem

“…Improving meat quality and reducing meat wastage are also critical priority, with initiatives aimed at raising standards and practices to ensure that red meat produced meets the necessary hygiene and handling standards for both domestic consumption and export markets. Selective breeding is identified as the primary approach for breed improvement, with crossbreeding being strategically employed in delineated and suitable areas. …”
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Assessment of the Progress in Small Ruminants' Community-Based Breeding Program Scaling and Exchange of Experiences Among Clusters por Belay, Berhanu, Getachew, Tesfaye, Haile, Aynalem

“…The Community-Based Breeding Program (CBBP), launched in 2009, offers an alternative approach to genetic improvement by focusing on selective breeding in smallholder settings. It achieves this by consolidating smallholder flocks to explore the genetic variability and facilitate targeted selection for better performance. …”
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Genetic estimates and genome-wide association studies of antibody response in Tanzanian dairy cattle por Hernandez-Castro, L.E., Cook, Elizabeth A.J., Matika, O., Mengele, I.J., Motto, S.K., Bwatota, S.F., Zirra-Shallangwa, B., Pong-Wong, R., Prendergast, J., Mrode, Raphael A., Toye, Philip G., Komwihangilo, D.M., Lyatuu, E., Karani, Benedict E., Nangekhe, Gertrude, Okeyo Mwai, Ally, Shirima, G.M., Bronsvoort, B.M. de C.

“…We propose that our results provide a basis for future understanding of the cellular pathways contributing to general and taxon-specific infection responses, and for advancing selective breeding and therapeutic target design.…”
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Genome-Wide Dissection of Novel QTLs and Genes Associated with Weed Competitiveness in Early-Backcross Selective Introgression-Breeding Populations of Rice (Oryza sativa L.) por Nocito, Kim Diane, Murugaiyan, Varunseelan, Ali, Jauhar, Pandey, Ambika, Casal, Carlos, De Asis, Erik Jon, Dimaano, Nina Gracel

“…This study aimed to develop rice cultivars competitive against jungle rice through selective breeding, focusing on early seed germination (ESG) and seedling vigor (ESV). …”
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Estimates of genetic parameters and genetic trends for live weight and fleece traits in Menz sheep por Solomon G., Sisay L., Hans K., Arendonk, Johan A.M. van

“…Estimates of genetic parameters and observed genetic trends confirm that selective breeding can lead to significant genetic improvement in Menz sheep.…”
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Faktorer som påverkar suggors sociala beteenden och effekter av aggressivt beteende vid grupphållning av suggor por Löfstrand, Jenny

“…For best results, it is appropriate to combine these methods and also include selective breeding for animals with good temper.…”
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Second Washera and Wollo sheep improvement Workshop in Amhara region: Summary Report por Ferede, Yeshiwas, Getachew, Tesfaye, Belay, Berhanu, Yeheyis, Likawent, Rekik, Mourad, 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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Phenotypic and genomic characterisation of performance of tropically adapted chickens raised in smallholder farm conditions in Ethiopia por Morris, K.M., Sutton, K., Girma, Mekonnen, Sánchez-Molano, E., Solomon, B., Esatu, Wondmeneh, Dessie, Tadelle, Vervelde, L., Psifidi, A., Hanotte, Olivier H., Banos, G.

“…Conclusion: Results suggest that performance of chickens raised under smallholder farm conditions is amenable to genetic improvement and may inform selective breeding programmes for enhanced chicken productivity in sub-Saharan Africa.…”
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Impact of provitamin A biofortified maize consumption on carotenoid status of Zambian children por Craft, Neal E., Palmer, Amanda, Schultze, Kerry, Chileshe, Justin, Barffour, Maxwell, Siamusantu, Ward, Klemm, Rolf, West, Keith

“…Objectives Provitamin A carotenoid biofortified “orange” maize has been developed as a vitamin A deficiency control strategy using selective breeding for the β-carotene hydroxylase-1 gene, which increases β-carotene, β-cryptoxanthin, and zeaxanthin in the endosperm. …”
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Efficient genomics-based ‘end-to-end’ selective tree breeding framework por El-Kassaby, Yousry A., Cappa, Eduardo Pablo, Chen, Charles, Ratcliffe, Blaise, Porth, Ilga M.

“…Since their initiation in the 1950s, worldwide selective tree breeding programs followed the recurrent selection scheme of repeated cycles of selection, breeding (mating), and testing phases and essentially remained unchanged to accelerate this process or address environmental contingencies and concerns. …”
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Potential for quantifying general environmental resilience of dairy cattle in sub-Saharan Africa using deviations in milk yield por Oloo, Richard Dooso, Mrode, Raphael A., Bennewitz, Jörn, Ekine-Dzivenu, Chinyere C., Ojango, Julie M.K., Gebreyohanes, Gebregziabher, Okeyo Mwai, Ally, Chagunda, Mizeck G.G.

“…This study offers an opportunity for enhancing the productivity of dairy cattle performing in SSA through selective breeding for resilience to environmental stressors.…”
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Breeding management strategies adopted for dairy production under low-input smallholder farming systems of East Africa por Ojango, Julie M.K., Kariuki, K., Njehu, A., Baltenweck, Isabelle

“…It was clear that the farmers were knowledgeable to some degree on several aspects related to selective breeding of animals. To effect change in the existing production systems, in addition to availing improved breeding materials at an affordable cost, capacity development using simplified messages targeted to address specific knowledge gaps concerning breed choice, reproduction and selection decisions is required.…”
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Next-generation biological control: the need for integrating genetics and genomics por Leung, Kelley, Ras, Erica, Ferguson, Kim B., Arïens, Simone, Babendreier, Dirk, Bijma, Piter, Bourtzis, Kostas, Brodeur, Jacques, Bruins, Margreet A., Centurión, Alejandra, Chattington, Sophie R., Chinchilla-Ramírez, Milena, Dicke, Marcel, Fatouros, Nina E., González-Cabrera, Joel, Groot, Thomas V. M., Haye, Tim, Knapp, Marcus, Koskinioti, Panagiota, Le Hesran, Sophie, Lyrakis, Manolis, Paspati, Angeliki, Pérez-Hedo, Mertixell, Plouvier, Wouter N., Schlötterer, Christian, Stahl, Judith M., Thiel, Andra, Urbaneja, Alberto, Van-De-Zande, Louis, Verhulst, Eveline C., Vet, Louise E. M., Visser, Sander, Werren, John H., Xia, Shuwen, Zwaan, Bas J., Magalhaes, Sara, Beukeboom, Leo W., Pannebakker, Bart A.

“…Next, the genes or markers linked to these traits need be determined, including how to implement this information into a selective breeding program. Choosing a trait can be assisted by modelling to account for the proper agro‐ecological context, and by knowing which traits have sufficiently high heritability values. …”
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Genetic parameters and genetic trends for growth traits of the Red Maasai sheep and its crosses to Dorper sheep under extensive production system in Kenya por Oyieng, Edwin P., Mrode, Raphael A., Ojango, Julie M.K., Ekine-Dzivenu, Chinyere C., Audho, James, Okeyo Mwai, Ally

“…The observed genetic gains demonstrate that selective breeding based on estimated breeding values can lead to significant genetic improvement in the Red Maasai sheep and its crosses.…”
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