Maria Rosa Lanari - Academia.edu (original) (raw)

Papers by Maria Rosa Lanari

Revista Argentina de …, 2006

Resumen Se analizaron muestras individuales de guanacos (n= 279) criados en semicautividad, prove... more Resumen Se analizaron muestras individuales de guanacos (n= 279) criados en semicautividad, provenientes de diferentes campos de la precordillera (Patagonia y Cuyo), la meseta y la costa patagónica, con el objetivo de establecer la influencia del ambiente ...

Ethnobiology and Conservation

Identifying and understanding how resilience is generated in a local socioecological system is es... more Identifying and understanding how resilience is generated in a local socioecological system is essential for the design of future conservation strategies. The Linca sheep represents one of the most important – but least known – biocultural legacies of the Mapuche people in Patagonia. These sheep, which arrived in the region along with the conquistadors more than three centuries ago, have been almost completely displaced by the Merino sheep breed. In this work we analyse the principal components that characterise the relictual producers of Linca sheep. These components are the key for the conservation of this traditional practice and takes a substantial part of local zoological knowledge (LZK). Interviews with artisans (n = 51) who know, require or use Linca wool, either know the breeders, enabled us to contact and interview 13 families who preserve these sheep. Based on an interpretative study we identified 3 biocultural components and 11 analytical variables. Through this analysis ...

Archivos De Zootecnia, Jan 15, 2020

It was proposed to typify phenotypically the goats of the Santa Elena province, Ecuador, and to t... more It was proposed to typify phenotypically the goats of the Santa Elena province, Ecuador, and to test if there were different phenotypes. 344 animals were sampled in different types of production systems. The following variables were observed: a) morphological: coat color pattern and coat color (CCP, CC); fur and fur characteristics (FUR, CHF); pigmentation of skin, mucous membranes and hooves (SP, PMM, HP); size and arrangement of ears (ES, EO); facial profile (FP); mamellas (M); beard (B); type and orientation of horns (HT, HO); shape of rump (SR); b) morpho-structural: length and width head (HL, HW); face length (FL); ear length (EL); shoulder width (SW); depth and girth chest (CHD, CHG); cannon perimeter (CP); body length (BL); height at withers (HAW); length and width of rump (RL, RW). The multivariate analyzes performed showed 3 groups: 1

La produccion de fibras caprinas en Argentina se localiza en el norte de la Patagonia, sur de Men... more La produccion de fibras caprinas en Argentina se localiza en el norte de la Patagonia, sur de Mendoza y oeste de La Pampa. Se estima que unos 6000 pequenos productores crian en esta area mas de un millon de cabras productoras de fibra. El Mohair, producido por la raza Angora es la fibra de mayor importancia. Argentina es el cuarto exportador mundial de esta fibra, con 900 tn anuales. El sistema Angora-Mohair ha evolucionado en las ultimas decadas. Los factores dinamizadores del sistema han sido la estructuracion de la poblacion a traves de esquemas de mejoramiento y difusion de reproductores y la organizacion de la comercializacion a traves del Programa Mohair, promoviendose una mejora en cantidad y calidad del Mohair, asi como una mayor utilizacion de tecnologias apropiadas a estos sistemas. Actualmente un 10% de la produccion se comercializa en forma asociada. La produccion de Cashmere se encuentra en las primeras fases de desarrollo en sistemas tradicionales basados en razas lo...

Animal genetics, Jan 17, 2017

Biodiversity studies are more efficient when large numbers of breeds belonging to several countri... more Biodiversity studies are more efficient when large numbers of breeds belonging to several countries are involved, as they allow for an in-depth analysis of the within- and between-breed components of genetic diversity. A set of 21 microsatellites was used to investigate the genetic composition of 24 Creole goat breeds (910 animals) from 10 countries to estimate levels of genetic variability, infer population structure and understand genetic relationships among populations across the American continent. Three commercial transboundary breeds were included in the analyses to investigate admixture with Creole goats. Overall, the genetic diversity of Creole populations (mean number of alleles = 5.82 ± 1.14, observed heterozygosity = 0.585 ± 0.074) was moderate and slightly lower than what was detected in other studies with breeds from other regions. The Bayesian clustering analysis without prior information on source populations identified 22 breed clusters. Three groups comprised more t...

Small Ruminant Research, 2010

Lama guanicoe guanicoe is the guanaco subspecies located in the Argentinean Patagonia. It is of p... more Lama guanicoe guanicoe is the guanaco subspecies located in the Argentinean Patagonia. It is of particular interest to characterize these populations as it is a native species and a high quality fibre production genetical resource. With the aim of describing phenotipically Lama guanicoe guanicoe populations, 262 specimens were sampled. The animals came from four different ecological regions, both wild and

BREEDING SCHEME FOR ANGORA GOAT PRODUCTION IN NORTH PATAGONIA M. Abad, J. Arrigo, A. Gibbons, M. ... more BREEDING SCHEME FOR ANGORA GOAT PRODUCTION IN NORTH PATAGONIA M. Abad, J. Arrigo, A. Gibbons, M. Lanari, G. Morris and H. Taddeo INTA-EEA Bariloche, CC 277 (8400) S. C. de Bariloche, Argentina. INTRODUCTION The implementation of an improvement program in a system of Angora goat production is described. The mohair production is located on the northern area of Patagonia, in the provinces of Neuquén, Rio Negro and Chubut. The stock is of approximately 700.000 goats distributed in 4500 farms (figure 1). Smallholder farms are placed in desert and isolated areas.

Archivos de Zootecnia, 2009

Archivos Latinoamericanos de Producción Animal

Se ha documentado la presencia de cashmere en los vellones de cabras Criolla Neuquina en el norte... more Se ha documentado la presencia de cashmere en los vellones de cabras Criolla Neuquina en el norte de la provincia de Neuquén, Argentina . El objetivo de este trabajo fue evaluar la cantidad y la calidad de la fibra cosechada en cabras criolla Neuquina según la época de esquila (preparto o posparto). El estudio se realizó en cuatro sitios (Curaco, Manzano Amargo, Cura Mallín y Loncovaca) del norte neuquino. En cada sitio se esquilaron 25 cabras durante la gestación (entre los 120 y 130 días) y 25 cabras entre los 60 a 70 días posparto. Se realizaron comparaciones inferenciales entre ambas esquilas dentro de cada sitio para las variables peso de vellón (PV), peso de cashmere (PCash) y diámetro medio de cashmere (DMCash). En todos los sitios se observó que al momento de la esquila posparto entre 30 y 52 % de las cabras ya habían mudado totalmente el cashmere. La época de esquila afectó significativamente los pesos de vellón en todos los sitios, siendo mayores el PV (Curaco, p = 0.0001;...

No official statistics exist on pastoralism in Argentina, so their number is not known. Between 3... more No official statistics exist on pastoralism in Argentina, so their number is not known. Between 30,000 to 35,000 households practise pastoralism, estimates Red Chaco based on the 2018 National Census. In some areas, pastoralism is alive as a mobile, extensive production system. Despite the uncertainty about the precise numbers, pastoralists play a significant role in Argentinian agriculture and society. Argentina is a large but highly urbanized country, with 92% of the population living in towns and cities. Only 13.2% of the country is agriculturally well endowed; 70% of the land is semi-arid, and much of the rest is mountainous or too cold for growing crops. Livestock-raising is the main form of agriculture in such marginal areas, either as ranching or as pastoralism.Estación Experimental Agropecuaria BarilocheFil: Lanari, Maria Rosa. Instituto Nacional de Tecnologia Agropecuaria (INTA). Estacion Experimental Agropecuaria Bariloche; ArgentinaFil: Perez Centeno, Marcelo. Instituto N...

Actas Iberoamericanas de Conservación Animal, 2019

Julio-Diciembre 2021, 2021

La raza caprina Criollo-Neuquina habita la provincia de Neuquén (Argentina) y constituye la forma... more La raza caprina Criollo-Neuquina habita la provincia de Neuquén (Argentina) y constituye la forma de vida de 1.600 crianceros del norte neuquino, debido a su alta eficiencia reproductiva y potencial productivo. En este trabajo se presenta la caracterización reproductiva de esta raza, abordando el estudio de la variación estacional de la actividad reproductiva en hembras y machos adultos, el inicio de la actividad sexual en cabritas y cabritos, el efecto macho y la dinámica folicular preovulatoria. Estas investigaciones constituyen una de las caracterizaciones reproductivas más exhaustivas de una raza de caprinos. Se determinó que el ciclo reproductivo es marcadamente estacional, con apareamientos en otoño y pariciones en primavera. Las hembras presentan un período de estros fértiles de 5 meses, entre abril y agosto; con mayores tasas de ovulación al principio de la temporada que al final (1,7 vs 1,0 ovulaciones/cabra). Los trabajos confirman la respuesta al efecto macho, presentándo...

Actas Iberoamericanas de Conservación Animal, Jun 25, 2019

It is estimated that 90% of the almost five million goats in Argentina are local populations trad... more It is estimated that 90% of the almost five million goats in Argentina are local populations traditionally called Criollo. This designation refers to goats whose phenotypic and productive attributes are neglected. These populations have different origins and were selected by diverse rural communities; however, they share some common characteristics, such as being adapted to harsh environmental conditions and being bred in arid areas. In order to determine the differential traits of local breeds within Criollo and contribute to their assessment as a local genetic resource, phenotypic characterization research carried out in the last decades were recovered. A database was built, with 19 qualitative and quantitative variables of 2170 females from 6 local populations: Criolla de Formosa (FOR), Córdoba (CBA), La Rioja (LRI), San Luis (SLU), Neuquén (NQN) and Colorada Pampeana (LPA). They were analysed descriptively and by multivariate analysis in order to define differences and similarities among them. The results showed shared (straight profile, horizontal ears) and divergent (type of coat, shin circumference) features. The conglomerates formed on the basis of the mixed data factor analysis showed a clear differentiation for FOR, LPA and NQN. CBA showed evidence of crossing with Anglo Nubian, while LRI and SLU were scattered. Four Clusters with good definition were formed for FOR, LPA, CBA and NQN. It is concluded that FOR, NQN and LPA populations have achieved a significant degree of phenotypic differentiation. The LRI and SLU did not show a clear differentiation and the CBA showed signs of crossing with commercial breeds and risk of genetic erosion.

UTCiencia "Ciencia y Tecnología al servicio del pueblo", Aug 31, 2019