Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats?
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 m...
| Autores principales: | , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
2017
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| Materias: | |
| Acceso en línea: | 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 |
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| author | Mueller, Joaquin Pablo Kosimov, M.A. Kosimov, F.F. Brent, L. Nishanov, N. Rischkowsky, Barbara |
| author_browse | Brent, L. Kosimov, F.F. Kosimov, M.A. Mueller, Joaquin Pablo Nishanov, N. Rischkowsky, Barbara |
| author_facet | Mueller, Joaquin Pablo Kosimov, M.A. Kosimov, F.F. Brent, L. Nishanov, N. Rischkowsky, Barbara |
| author_sort | Mueller, Joaquin Pablo |
| collection | INTA Digital |
| 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. |
| format | info:ar-repo/semantics/artículo |
| id | INTA1328 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA13282019-03-22T14:26:23Z Do Texas Angora bucks improve mohair weight and quality traits of Tajik Angora goats? Mueller, Joaquin Pablo Kosimov, M.A. Kosimov, F.F. Brent, L. Nishanov, N. Rischkowsky, Barbara Producción de Lana Caprinos Razas (Animales) Fibras de Origen Animal Mohair Goats Breeds (Animals) Wool Production Animal Fibres Raza Angora 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 2017-09-27T12:47:14Z 2017-09-27T12:47:14Z 2016 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion 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 eng info:eu-repo/semantics/restrictedAccess application/pdf Small ruminant research 134 : 74-78. (January 2016) |
| spellingShingle | Producción de Lana Caprinos Razas (Animales) Fibras de Origen Animal Mohair Goats Breeds (Animals) Wool Production Animal Fibres Raza Angora Mueller, Joaquin Pablo Kosimov, M.A. Kosimov, F.F. Brent, L. Nishanov, N. Rischkowsky, Barbara 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? |
| 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_short | 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 |
| topic | Producción de Lana Caprinos Razas (Animales) Fibras de Origen Animal Mohair Goats Breeds (Animals) Wool Production Animal Fibres Raza Angora |
| 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 |
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