Daniel Martín Collado

Dr. Daniel Martín Collado


Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2016 in Journal of Dairy Science
Verified
Journal Article
Closed access
TBT.J. Byrne
T.J. Byrne
BSB.F.S. Santos
B.F.S. Santos
PAP.R. Amer
P.R. Amer
DCDaniel Martín Collado
Daniel Martín Collado
JPJ.E. Pryce
J.E. Pryce
MAM. Axford
M. Axford
This study comprises an update of the economic values for dairy traits for the Australian industry and the formulation of updated selection indices. An economic model, which calculates partial economic values for each trait individually, was developed to determine the economic implications of selective dairy breeding, based on the effect of trait changes on the profit of commercial dairy farms in Australia. Selection indices were developed from economic values, which were transformed into base economic weights by including the discounted genetic expressions coefficients. Economic weights (in Australian dollars) were 1.79, 6.92, -0.10, -5.44, 8.84, 7.68, 1.07, 4.86, 1.91, 3.51, 4.90, 0.31, 2.03, 2.00, and 0.59, for milk fat (kg), milk protein (kg), milk volume (L), body weight (kg), survival (%), residual survival (%), somatic cell count (cells/mL), fertility (%), mammary system [Australian Breeding Value (ABV) unit], temperament (ABV unit), milking speed (ABV unit), udder depth (%), overall type (%), fore udder attachment (%), and pin set (%), respectively. The updated economic weights presented in this study constituted the basis of the definition for 3 new indices. These indices were developed from combination of bioeconomic principles, patterns of farmer preferences for trait improvements, and desired gains approaches. The 3 indices, Balanced Performance Index, Health Weighted Index, and Type Weighted Index, have been released to the industry.

1 June 2015 in Journal of Dairy Science
Verified
Journal Article
Open access
DCDaniel Martín Collado
Daniel Martín Collado
TBT.J. Byrne
T.J. Byrne
PAP.R. Amer
P.R. Amer
BSB.F.S. Santos
B.F.S. Santos
MAM. Axford
M. Axford
JPJ.E. Pryce
J.E. Pryce
Giving consideration to farmers' preferences for improvements in animal traits when designing genetic selection tools such as selection indexes might increase the uptake of these tools. The increase in use of genetic selection tools will, in turn, assist in the realization of genetic gain in breeding programs. However, the determination of farmers' preferences is not trivial because of its large heterogeneity. The aim of this study was to quantify Australian dairy farmers' preferences for cow trait improvements to inform and ultimately direct the choice of traits and selection indexes in the 2014 review of the National Breeding Objective. A specific aim was to analyze the heterogeneity of preferences for cow trait improvements by determining whether there are farmer types that can be identified with specific patterns of preferences. We analyzed whether farmer types differed in farming system, socioeconomic profile, and attitudes toward breeding and genetic evaluation tools. An online survey was developed to explore farmers' preferences for improvement in 13 cow traits. The pairwise comparisons method was used to derive a ranking of the traits for each respondent. A total of 551 farmers fully completed the survey. A principal component analysis followed by a Ward hierarchical cluster analysis was used to group farmers according to their preferences. Three types of farmers were determined: (1) production-focused farmers, who gave the highest preference of all for improvements in protein yield, lactation persistency, feed efficiency, cow live weight, and milking speed; (2) functionality-focused farmers with the highest preferences of all for improvements in mastitis, lameness, and calving difficulty; and (3) type-focused farmers with the highest preferences of all for mammary system and type. Farmer types differed in their age, their attitudes toward genetic selection, and in the selection criteria they use. Surprisingly, farmer types did not differ for herd size, calving, feeding system, or breed. These results support the idea that preferences for cow trait improvements are intrinsic to farmers and not to production systems or breeds. As a result of this study, and some bioeconomic modeling (not included in this study), the Australian dairy industry has implemented a main index and 2 alternative indexes targeting the different farmer types described here.

26 June 2020 in Animals
Verified
Journal Article
Open access
PDF file
Serena MandolesiSerena Mandolesi
Serena Mandolesi
Simona NaspettiSimona Naspetti
Simona Naspetti
Georgios ArsenosGeorgios Arsenos
Georgios Arsenos
ECEmmanuelle Caramelle-Holtz
Emmanuelle Caramelle-Holtz
TLTerhi Latvala
Terhi Latvala
Raffaele ZanoliRaffaele Zanoli
Raffaele Zanoli
This international study involving seven European countries (Italy, UK, Finland, France, Spain, Greece, Turkey) was conducted to explore the relevant reasons that affect both consumer and non-consumer perceptions of sheep and goat meat. Laddering and means–end chain theory were applied. The results indicate that consumers associate sheep and goat meat with a unique taste, authenticity and natural production, linked with values such as health and enjoyment of life. In contrast, non-consumers mainly feel disgusted when they think and feel about these meats, and do not associate any specific health benefits to their consumption, disliking their taste, odour and fat content. This study is based on qualitative research. Only analytical generalizations are possible, expanding the theory on what drives consumer behaviour when purchasing meat. No previous means–end chain studies are available in the literature regarding small ruminants’ meat consumer preferences.

20 February 2021 in Animals
Verified
Journal Article
Open access
PDF file
Emilia Cubero DudinskayaEmilia Cubero Dudinskaya
Emilia Cubero Dudinskaya
Simona NaspettiSimona Naspetti
Simona Naspetti
Georgios ArsenosGeorgios Arsenos
Georgios Arsenos
ECEmmanuelle Caramelle-Holtz
Emmanuelle Caramelle-Holtz
TLTerhi Latvala
Terhi Latvala
Raffaele ZanoliRaffaele Zanoli
Raffaele Zanoli
Food consumption in Europe is changing. Red meat consumption has been steadily decreasing in the past decades. The rising interest of consumers for healthier and more sustainable meat products provides red meat producers with the opportunity to differentiate their offers by ecolabels, origin and health claims. This international study analyses the European consumer preferences for red meat (beef, lamb and goat) in seven countries: Finland, France, Greece, Italy, Spain, Turkey and the United Kingdom. Through a choice experiment, 2900 responses were collected. Mixed multinomial logit models were estimated to identify heterogeneous preferences among consumers at the country level. The results indicate substantial differences between the most relevant attributes for the average consumer, as well as their willingness to pay for them in each country. Nevertheless, national origin and organic labels were highly valued in most countries.

1 July 2010 in Animal Genetic Resources/Ressources génétiques animales/Recursos genéticos animales
Verified
Journal Article
Closed access
PDF file
GGGustavo Gandini
Gustavo Gandini
LAL. Avon
L. Avon
DBD. Bohte-Wilhelmus
D. Bohte-Wilhelmus
EBE. Bay
E. Bay
FCF.G. Colinet
F.G. Colinet
SHS.J. Hiemstra
S.J. Hiemstra
Within the EURECA project (Towards self-sustainable EUropean REgional CAttle breeds), we interviewed a total of 371 farmers of 15 local cattle breeds in eight European countries. Besides collecting data on farmers, land use, herd composition and economic role of cattle, we aimed at understanding farmers' motives and values in keeping local cattle. The most frequent first reason to keep the local breed was productivity, followed by tradition. When comparing the local breed with a mainstream breed, only in four breeds was productivity considered the same, while in three breeds more than 50 percent of farmers valued the local breed as more profitable. The local breed was valued as always superior or the same on functional traits. Farmers were asked which type of appreciation they thought representatives of various stakeholders had on their local breed: a positive appreciation was observed in 33 percent of farmers. On average across breeds, 39 percent of farmers expect to increase the size of their herd in the next few years and 5 percent plan to give up farming. The degree of dependence of farmers on economic incentives was estimated by asking farmers their expected behaviour under three scenarios of change of subsidies. Most farmers demanded activities for promoting local breed farming. The results are discussed in terms of breed sustainability and conservation. Dans le cadre du projet EURECA, nous avons interviewé au total 371 éleveurs de 15 races locales bovines dans huit pays européens. En plus de collecter des informations sur les éleveurs, leur exploitation, la composition du troupeau et l'importance économique des bovins, nous avons également cherché à comprendre les motivations des éleveurs à garder de telles races. La raison principale la plus fréquemment citée était la productivité, suivie par la tradition. Les races locales étaient aussi comparées aux races principales, dans seulement quatre cas la productivité était considérée comme équivalente, et dans trois races plus de 50% des éleveurs ont jugé leur race locale plus rentable. Pour les caractères fonctionnels, la race locale était toujours considérée supérieure ou égale. Nous avons aussi demandé aux éleveurs comment ils pensaient être vus par différentes parties prenantes concernant leur race locale: une appréciation positive a été indiquée par 33% des éleveurs. En moyenne, 39% des éleveurs envisagent d'augmenter leur cheptel dans les années à venir, 5% d'arrêter l'élevage. Le degré de dépendance des éleveurs vis-à-vis des subventions a été estimé en leurs demandant leur réaction face à trois scénarios de changement dans ces subventions. Beaucoup d'éleveurs sont demandeurs d'actions visant à promouvoir l'élevage des races locales. Les résultats sont discutés en termes d'élevage durable et de conservation. 371 ganaderos de 15 razas locales de 8 países Europeos se entrevistaron dentro del proyecto EURECA. Además de recoger datos sobre los ganaderos, el uso del terreno, la composición de las ganaderías, y su papel económico, buscamos entender los motivos por los que los ganaderos explotan estas razas y el valor que les dan. La razón principal más frecuente fue la productividad, siendo seguida por la tradición. Cuando los ganaderos compararon la raza local con la raza dominante, la productividad se consideró igual solo en cuatro razas y tres razas se consideraron más rentables por más del 50% de los ganaderos. Las características funcionales de estas razas fueron consideradas siempre iguales o superiores. Para el 33% de los ganaderos existe una apreciación positiva a sus razas por parte de distintos stakeholders. El 39% espera aumentar el tamaño de su ganadería en los próximos años mientras el 5% va a dejar la actividad. La dependencia a los subsidios se estimó explorando la reacción de los ganaderos ante tres escenarios de variaciones de las ayudas. La mayoría de los ganaderos reclamó actividades de promoción de la explotación de sus razas. Los resultados se discuten en términos de sostenibilidad y conservación.

5 April 2022 in Frontiers in Nutrition
Verified
Journal Article
Open access
DCDaniel Martín Collado
Daniel Martín Collado
TBTim J. Byrne
Tim J. Byrne
JCJonh J. Crowley
Jonh J. Crowley
TKTom Kirk
Tom Kirk
GRGuillermo Ripoll
Guillermo Ripoll
CWC. B. A. Whitelaw
C. B. A. Whitelaw
Novel gene-editing (GE) technologies provide promising opportunities to increase livestock productivity and to tackle several global livestock production sustainability and food security challenges. However, these technologies, as with previous genetic modification technologies in food production, are very likely to generate social controversy and opposition toward their use in the meat industry. Here, we explored public attitudes and consumption predisposition toward gene-edited meat products and their potential added benefits to livestock farming. Our results show that societal perception currently comes as a package, where the use of gene-editing technology acts as an extrinsic cue of meat products quality, and is used to make a range of inferences about all quality facets at once. Although consumers with anti-GE attitudinal positions generally were not sensitive to price discounts or added benefits, added benefits increased the consumption predisposition of most moderate and pro-GE consumers, where benefits related to animal welfare had larger effects than those relating to the environment or human health issues.