Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats?

Autores
Mueller, Joaquin Pablo; Kosimov, M.A.; Kosimov, F.F.; Brent, L.; Nishanov, N.; Rischkowsky, Barbara
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
Productores de angora en Tajikistán del Norte levantan alrededor de 200,000 cabras De angora y productos alrededor de 300 toneladas de mohair. ¿Hay aproximadamente 500 productores pequeños, medios y más grandes con 100-500 cabras, varias cooperativas (antiguas granjas estatales) que levanta varios miles de cabras y cientos de las casas que tienen pequeño? ocks de 10-15 cabras. Pastan las cabras todo el año, productos alrededor de 1.5 kilogramos de mohair por regla general y son esquilados una vez al año.
With the main objective of improving Tajik mohair quantity and quality, frozen semen from eight top performance tested Texan Angora bucks was imported and used on 459 selected local goats from 11 farmers in two insemination seasons. Conception rates in both seasons were very low. Sixty six Texan x Tajik crossbred progeny were compared with 308 contemporary Tajik controls. Early live body weights, mohair quantity and mohair quality data were collected and genotypes compared after correcting for season, farm and sex of progeny, fitting age as a co-variable. Body weights at birth were higher in crossbreds (2.39 vs. 2.19 kg, P < 0.001) but body weights at 6 weeks, 6 months and 12 months were similar. Fleece weights at first shearing were much higher in crossbreds (1.16 vs. 0.68 kg, P < 0.001) as well as staple length (19.6 vs. 16.3 cm, P < 0.001). Fibre diameter at first shearing tended to be lower in crossbreds (24.2 vs. 25.9 μm, P = 0.088) and was lower at second shearing (29.2 vs. 31.5 μm, P < 0.05). Med fibre percentage (proportion of fibres with a medulla less than 60% of its diameter) was lower in crossbreds at first (1.70 vs. 4.12%, P < 0.05) and second shearing (1.86 vs. 3.01%, P < 0.05). Kemp fibre percentages (proportion of fibres with a medulla equal or larger than 60% of its diameter) were very low and not significantly different between genotypes. There was no difference in visual assessment of fibre fineness but the proportion of progeny classed as superior for overall quality was much higher in crossbreds (39/52 vs. 99/290, P < 0001). It was suggested to monitor later life performance of crossbreds and it is concluded that the introduction of Texan Angora bucks improved Tajik goats. Further improvement may be based on cooperative breeding of Texan progeny and outstanding local goats on one site and distribution to multipliers in different communities.
EEA Bariloche
Fil: Mueller, Joaquin Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
Fil: Kosimov, M.A. Tajik Livestock Institute, Khojand; Tajikistan
Fil: Kosimov, F.F. Tajik Livestock Institute, Khojand; Tajikistan
Fil: Brent, L. University of Wisconsin; Estados Unidos
Fil: Nishanov, N. International Centre for Agricultural Research in the Dry Areas, Tashkent; Uzbekistan
Fil: Rischkowsky, Barbara. International Centre for Agricultural Research in the Dry Areas, Addis Ababa; Etiopía
Fuente
Small ruminant research 134 : 74-78. (January 2016)
Materia
Producción de Lana
Caprinos
Razas (Animales)
Fibras de Origen Animal
Mohair
Goats
Breeds (Animals)
Wool Production
Animal Fibres
Raza Angora
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/1328

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oai_identifier_str oai:localhost:20.500.12123/1328
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network_name_str INTA Digital (INTA)
spelling Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats?Mueller, Joaquin PabloKosimov, M.A.Kosimov, F.F.Brent, L.Nishanov, N.Rischkowsky, BarbaraProducción de LanaCaprinosRazas (Animales)Fibras de Origen AnimalMohairGoatsBreeds (Animals)Wool ProductionAnimal FibresRaza AngoraProductores de angora en Tajikistán del Norte levantan alrededor de 200,000 cabras De angora y productos alrededor de 300 toneladas de mohair. ¿Hay aproximadamente 500 productores pequeños, medios y más grandes con 100-500 cabras, varias cooperativas (antiguas granjas estatales) que levanta varios miles de cabras y cientos de las casas que tienen pequeño? ocks de 10-15 cabras. Pastan las cabras todo el año, productos alrededor de 1.5 kilogramos de mohair por regla general y son esquilados una vez al año.With the main objective of improving Tajik mohair quantity and quality, frozen semen from eight top performance tested Texan Angora bucks was imported and used on 459 selected local goats from 11 farmers in two insemination seasons. Conception rates in both seasons were very low. Sixty six Texan x Tajik crossbred progeny were compared with 308 contemporary Tajik controls. Early live body weights, mohair quantity and mohair quality data were collected and genotypes compared after correcting for season, farm and sex of progeny, fitting age as a co-variable. Body weights at birth were higher in crossbreds (2.39 vs. 2.19 kg, P < 0.001) but body weights at 6 weeks, 6 months and 12 months were similar. Fleece weights at first shearing were much higher in crossbreds (1.16 vs. 0.68 kg, P < 0.001) as well as staple length (19.6 vs. 16.3 cm, P < 0.001). Fibre diameter at first shearing tended to be lower in crossbreds (24.2 vs. 25.9 μm, P = 0.088) and was lower at second shearing (29.2 vs. 31.5 μm, P < 0.05). Med fibre percentage (proportion of fibres with a medulla less than 60% of its diameter) was lower in crossbreds at first (1.70 vs. 4.12%, P < 0.05) and second shearing (1.86 vs. 3.01%, P < 0.05). Kemp fibre percentages (proportion of fibres with a medulla equal or larger than 60% of its diameter) were very low and not significantly different between genotypes. There was no difference in visual assessment of fibre fineness but the proportion of progeny classed as superior for overall quality was much higher in crossbreds (39/52 vs. 99/290, P < 0001). It was suggested to monitor later life performance of crossbreds and it is concluded that the introduction of Texan Angora bucks improved Tajik goats. Further improvement may be based on cooperative breeding of Texan progeny and outstanding local goats on one site and distribution to multipliers in different communities.EEA BarilocheFil: Mueller, Joaquin Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; ArgentinaFil: Kosimov, M.A. Tajik Livestock Institute, Khojand; TajikistanFil: Kosimov, F.F. Tajik Livestock Institute, Khojand; TajikistanFil: Brent, L. University of Wisconsin; Estados UnidosFil: Nishanov, N. International Centre for Agricultural Research in the Dry Areas, Tashkent; UzbekistanFil: Rischkowsky, Barbara. International Centre for Agricultural Research in the Dry Areas, Addis Ababa; Etiopía2017-09-27T12:47:14Z2017-09-27T12:47:14Z2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/1328http://www.sciencedirect.com/science/article/pii/S09214488153012180921-4488https://doi.org/10.1016/j.smallrumres.2015.12.031Small ruminant research 134 : 74-78. (January 2016)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-04T09:47:04Zoai:localhost:20.500.12123/1328instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:47:05.283INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats?
title Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats?
spellingShingle Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats?
Mueller, Joaquin Pablo
Producción de Lana
Caprinos
Razas (Animales)
Fibras de Origen Animal
Mohair
Goats
Breeds (Animals)
Wool Production
Animal Fibres
Raza Angora
title_short Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats?
title_full Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats?
title_fullStr Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats?
title_full_unstemmed Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats?
title_sort Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats?
dc.creator.none.fl_str_mv Mueller, Joaquin Pablo
Kosimov, M.A.
Kosimov, F.F.
Brent, L.
Nishanov, N.
Rischkowsky, Barbara
author Mueller, Joaquin Pablo
author_facet Mueller, Joaquin Pablo
Kosimov, M.A.
Kosimov, F.F.
Brent, L.
Nishanov, N.
Rischkowsky, Barbara
author_role author
author2 Kosimov, M.A.
Kosimov, F.F.
Brent, L.
Nishanov, N.
Rischkowsky, Barbara
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Producción de Lana
Caprinos
Razas (Animales)
Fibras de Origen Animal
Mohair
Goats
Breeds (Animals)
Wool Production
Animal Fibres
Raza Angora
topic Producción de Lana
Caprinos
Razas (Animales)
Fibras de Origen Animal
Mohair
Goats
Breeds (Animals)
Wool Production
Animal Fibres
Raza Angora
dc.description.none.fl_txt_mv Productores de angora en Tajikistán del Norte levantan alrededor de 200,000 cabras De angora y productos alrededor de 300 toneladas de mohair. ¿Hay aproximadamente 500 productores pequeños, medios y más grandes con 100-500 cabras, varias cooperativas (antiguas granjas estatales) que levanta varios miles de cabras y cientos de las casas que tienen pequeño? ocks de 10-15 cabras. Pastan las cabras todo el año, productos alrededor de 1.5 kilogramos de mohair por regla general y son esquilados una vez al año.
With the main objective of improving Tajik mohair quantity and quality, frozen semen from eight top performance tested Texan Angora bucks was imported and used on 459 selected local goats from 11 farmers in two insemination seasons. Conception rates in both seasons were very low. Sixty six Texan x Tajik crossbred progeny were compared with 308 contemporary Tajik controls. Early live body weights, mohair quantity and mohair quality data were collected and genotypes compared after correcting for season, farm and sex of progeny, fitting age as a co-variable. Body weights at birth were higher in crossbreds (2.39 vs. 2.19 kg, P < 0.001) but body weights at 6 weeks, 6 months and 12 months were similar. Fleece weights at first shearing were much higher in crossbreds (1.16 vs. 0.68 kg, P < 0.001) as well as staple length (19.6 vs. 16.3 cm, P < 0.001). Fibre diameter at first shearing tended to be lower in crossbreds (24.2 vs. 25.9 μm, P = 0.088) and was lower at second shearing (29.2 vs. 31.5 μm, P < 0.05). Med fibre percentage (proportion of fibres with a medulla less than 60% of its diameter) was lower in crossbreds at first (1.70 vs. 4.12%, P < 0.05) and second shearing (1.86 vs. 3.01%, P < 0.05). Kemp fibre percentages (proportion of fibres with a medulla equal or larger than 60% of its diameter) were very low and not significantly different between genotypes. There was no difference in visual assessment of fibre fineness but the proportion of progeny classed as superior for overall quality was much higher in crossbreds (39/52 vs. 99/290, P < 0001). It was suggested to monitor later life performance of crossbreds and it is concluded that the introduction of Texan Angora bucks improved Tajik goats. Further improvement may be based on cooperative breeding of Texan progeny and outstanding local goats on one site and distribution to multipliers in different communities.
EEA Bariloche
Fil: Mueller, Joaquin Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
Fil: Kosimov, M.A. Tajik Livestock Institute, Khojand; Tajikistan
Fil: Kosimov, F.F. Tajik Livestock Institute, Khojand; Tajikistan
Fil: Brent, L. University of Wisconsin; Estados Unidos
Fil: Nishanov, N. International Centre for Agricultural Research in the Dry Areas, Tashkent; Uzbekistan
Fil: Rischkowsky, Barbara. International Centre for Agricultural Research in the Dry Areas, Addis Ababa; Etiopía
description Productores de angora en Tajikistán del Norte levantan alrededor de 200,000 cabras De angora y productos alrededor de 300 toneladas de mohair. ¿Hay aproximadamente 500 productores pequeños, medios y más grandes con 100-500 cabras, varias cooperativas (antiguas granjas estatales) que levanta varios miles de cabras y cientos de las casas que tienen pequeño? ocks de 10-15 cabras. Pastan las cabras todo el año, productos alrededor de 1.5 kilogramos de mohair por regla general y son esquilados una vez al año.
publishDate 2016
dc.date.none.fl_str_mv 2016
2017-09-27T12:47:14Z
2017-09-27T12:47:14Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/1328
http://www.sciencedirect.com/science/article/pii/S0921448815301218
0921-4488
https://doi.org/10.1016/j.smallrumres.2015.12.031
url http://hdl.handle.net/20.500.12123/1328
http://www.sciencedirect.com/science/article/pii/S0921448815301218
https://doi.org/10.1016/j.smallrumres.2015.12.031
identifier_str_mv 0921-4488
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Small ruminant research 134 : 74-78. (January 2016)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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