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
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/1328
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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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12.623145 |