Growth and development of the Lusitano horse managed on grazing systems

Fradinho, Maria João; Bessa, Rui J. B.; Ferreira‐Dias, Graça; Caldeira, Rui

doi:10.1016/j.livsci.2015.06.006

Cited by 22 publications

(27 citation statements)

References 23 publications

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“…However, this Portuguese breed has continued to be used at the base of the production of the MM horses (SAN-TIAGO et al, 2014), which may possibly be linked to the smaller sizes of this Brazilian breed. This finding concurred with that of FRALDINHO et al (2015), in which they noted the slower increase in the live Table 2 -Estimated parameters and the upper and lower limits of the confidence intervals for all four models describing the growth curve of the female and male Mangalarga Marchador horses. * Legend: a = is the asymptotic value or adult weight of the animal; b = is a location parameter associated with the inflection point of the model; k = is the maturity index and precocity of the model; LI = lower limit of the confidence interval; LS = upper limit of the confidence interval.…”

Section: Resultssupporting

confidence: 82%

“…Comparing the kvalues found in the breed MM (Table 2) against shown by FRALDINHO et al (2015) in the Lusitano breed (k = 0.0010) the values were observed to be higher in the MM animals. However, this Portuguese breed has continued to be used at the base of the production of the MM horses (SAN-TIAGO et al, 2014), which may possibly be linked to the smaller sizes of this Brazilian breed.…”

Section: Resultsmentioning

confidence: 86%

“…In their work SANTOS et al (2007) reported that the pantaneiras females were more precocious, contrary to the findings of MCM-ANUS et al (2010) who recorded no difference in the maturation rates of both sexes. In the Lusitanobreed, the males showed higher precocity than did the females, indicating that these differences arose from the sexual dimorphism present in the species (FRALDINHO et al, 2015).…”

Section: Resultsmentioning

confidence: 96%

“…Only a few studies are available on monitoring growth curves in horses, in which the samples obtained from repeated measurements in the same animal, from birth to adulthood, are usually considered (SANTOS et al, 2007;MCMANUS et al, 2010;FRALDINHO et al, 2015). This type of experimental procedure poses a difficulty in realizing the research of the species in this area, as it takes up to five years to reach the adult stage, and most farms retain only very few animals until this age.…”

Section: Introductionmentioning

confidence: 99%

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Nonlinear modeling growth body weight of Mangalarga Marchador horses

et al. 2017

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The analysis of the growth and development of various species has been done using the growth curves of the specific animal based on non-linear models. The objective of the current study was to evaluate the fit of the Brody, Gompertz, Logistic and von Bertalanffy models to the cross-sectional data of the live weight of the MangalargaMarchador horses to identify the best model and make accurate predictions regarding the growth and maturity in the males and females of this breed. The study involved recording the weight of 214 horses, of which 94 were males and 120 were non-pregnant females, between 6 and 153 months of age. The parameters of the model were estimated by employing the method of least squares, using the iteratively regularized Gauss-Newton method and the R software package. Comparison of the models was done based on the following criteria: coefficient of determination (R²); Residual Standard Deviation (RSD); corrected Akaike Information Criterion (AICc). The estimated weight of the adult horses by the models ranged between 431kg and 439kg for males and between 416kg and 420kg for females. The growth curves were studied using the cross-sectional data collection method. For males the von Bertalanffymodel was found to be the most effective in expressing growth, while in females the Brody model was more suitable. The MangalargaMarchador females achieve adult body weight earlier than the males.

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Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 86%

Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Nonlinear modeling growth body weight of Mangalarga Marchador horses

et al. 2017

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“…In general, studies of horse growth involve repeated measurements of the same animal, from birth to the adult phase (Santos et al, 2007;Garcia et al, 2011;Fradinho et al, 2016), known as the longitudinal method (Silva et al, 2010;Sperandio et al, 2011). However, acquiring data on the Mangalarga Marchador breed is difficult because most horses are sold by their owners before their growth stops at approximately five years of age.…”

Section: Introductionmentioning

confidence: 99%

Morphometric characteristics of the Mangalarga Marchador horse breed determined by nonlinear models

Souza

Fernandes

Cunha

et al. 2019

Pesq. agropec. bras.

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The objective of this work was to evaluate the development of the morphometric characteristics of Mangalarga Marchador horses through nonlinear models. The transversal method was used to collect data on height at the withers (HW), body length (BL), and thoracic (TP) and cannon (CP) perimeters from 200 horses (75 males and 125 non-pregnant females), aged between 6 and 153 months. The parameters of the Brody, Gompertz, logistic, and von Bertalanffy nonlinear models were estimated using the R software. Models were compared and selected using the coefficient of determination, the residual standard deviation, and the corrected Akaike information criterion. For adult females, HW, BL, TP, and CP ranged between 146.45-148.34, 148.59-151.64, 179.07-182.88, and 18.25-18.76 cm, respectively. For males, HW, BL, and CP ranged between 148.55-151.80, 150.77-154.88, and 18.95-19.41 cm, respectively. The logistic model best expresses growth in HW for males and females, as well as in BL and CP for males, whereas the Brody model is the best predictor for HW, BL, TP, and CP for females. The increase in the values of the morphometric measurements is more rapid and homogeneous between the ages of 6 and 24 months, stabilizing at 60 months in both sexes.

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Growth and Development of the Lusitano Foal on Extensive Systems

Fradinho

2020

Advances in Animal Health, Medicine and Production

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vi concretização de uma parte deste trabalho. Um agradecimento muito especial à Doutora Ana Catarina Vale, também do IST, por todo o envolvimento e colaboração nestes ensaios. Ao Dr. Nuno Bernardes, pela amizade e disponibilidade que sempre teve para nos acompanhar ao longo destes anos. Obrigada por todo o envolvimento nos trabalhos relativos à qualidade do osso (desde o campo até ao corte do "dito"), pelos RX e sua interpretação e pela revisão dos aspectos mais específicos relacionados com os problemas osteoarticulares. Às entidades e coudelarias que facultaram as suas instalações e efectivos. Este trabalho só foi possível graças ao seu envolvimento e colaboração:  Ao ex-Serviço Nacional Coudélico, na pessoa do seu Director à época, Dr. Costa Ferreira, o qual permitiu a inclusão da equipa da FMV no projecto POCI;  À Coudelaria de Alter, posteriormente incluída na ex-Fundação Alter Real, nas pessoas do seu Presidente Engº Vítor Barros e da sua Directora Dra. Idalina Trindade. Em particular, gostaria de agradecer a toda a equipa da Coudelaria de Alter que nos acompanhou e recebeu nos dias de trabalho de campo. À Dra. Maria José Correia, pelo seu empenho e pela sua boa disposição. Obrigada Zézinha, pela invulgar disponibilidade e pela franca amizade! Aos restantes ajudantes, Dra. Madalena Roquette, Sr. Ricardo Antunes, Sr. António Gomes e Sr. Ricardo Vicente, o meu sincero agradecimento;  À Coudelaria Nacional, posteriormente também integrada na ex-Fundação Alter Real, um agradecimento a todos os que de alguma forma colaboraram neste trabalho. Ao Dr. Mário Barbosa, ao Engº Francisco Beja ("dividido" depois também com a Coudelaria de Alter), ao Dr. Ricardo Agrícola, ao Dr. Vitor Grácio, ao Sr. João Francisco Gonçalves, ao Sr. João Fandinga, ao Sr. Lucílio Almeida e ao Sr. Manuel Pechorro (em memória);  Ao Sr. José Manuel de Mello (em memória), pelo pronto acolhimento e pelo entusiasmo com que recebeu este projecto na Coudelaria do Monte da Ravasqueira. Infelizmente a sua perda prematura não permitiu que pudéssemos seguir os seus animais para além de um primeiro ano. Um agradecimento especial a toda a equipa que nos acompanhou na Coudelaria, a Dra. Maria José Vila-Viçosa, o Sr. Júlio Jarego da Fonseca e o Sr. Mariano;  Ao Engº Manuel Campilho e ao seu filho Diogo Campilho, pelo pronto acolhimento deste projecto na Quinta da Lagoalva de Cima, pelo interesse e pela disponibilidade sempre demonstrados. Um agradecimento especial à restante equipa que nos acompanhou, ao Dr. Miguel Bliebernicht, ao Sr. António Rosa e ao Sr. Luís Mira (obrigada pelo contacto com os vossos cavalos de atrelagem e também pelos ensinamentos relativos a esta disciplina);  À Companhia das Lezírias, nas pessoas do seu Presidente à época, Engº Vítor Barros e da sua Administradora Dra. Ana Teresa Caseiro. Mais recentemente, um agradecimento muito especial ao seu actual Presidente, Engº António Saraiva, pelo seu interesse e incentivo. Em particular gostaria de agradecer a todos os que estiveram envolvidos no trabalho de campo, pela ajuda e pela...

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Growth and development of the Lusitano horse managed on grazing systems

Cited by 22 publications

References 23 publications

Nonlinear modeling growth body weight of Mangalarga Marchador horses

Nonlinear modeling growth body weight of Mangalarga Marchador horses

Morphometric characteristics of the Mangalarga Marchador horse breed determined by nonlinear models

Growth and Development of the Lusitano Foal on Extensive Systems

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