Estimation of Live Weight by Body Measurements in the Miranda Donkey Breed

Quaresma, Miguel; Bacellar, Daniel; Leiva, Belén; Silva, Severiano

doi:10.1016/j.jevs.2019.05.014

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Bila et al (2021) indicated that body length had a negative statistical correlation with body weight. Current correlation results disagree with the results reported by (Quaresma et al, 2019) on males, disagreement may be due to breed used and the environment. Findings of the current study suggest that wither height and rump height might be used to improve the body weight of donkeys in the study area.…”

Section: Discussioncontrasting

confidence: 98%

The Use of Linear Body Measurements Predictors of Body Weight of Donkeys at Blouberg Local Municipality, Limpopo, South Africa

Tyasi¹

2022

MJA

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In animal breeding, linear body measurements are identified as predictors of body weight. The current study was conducted to estimate body weight (BW) by using body measurements including thoracic circumference (TC), withers height (WH), body length (BoL), rump height (RH) and front leg length (FLL) of donkeys. The study was conducted at three villages (Thorne, Archibalt, and Genau) of Blouberg Local Municipality, Limpopo, South Africa. A total of 74 donkeys (40 males and 34 females) aged from 3 to 4 years were used in the current study. Data were analyzed using Pearson correlation and simple linear regression. Correlation results indicated that in female donkeys, BW had positive and highly statistical significant (p  0.01) correlation with WH (r = 0.67) and not significant correlated (p  0.05) with TC (r = 0.14) and FLL (r = 0.28). In male donkeys, BW had positive and highly statistical significant (p  0.01) correlation with RH (r = 0.60) and not significant correlated (p  0.05) to FLL (r = 0.27). Regression findings indicated that WH had the highest r 2 = 0.45 and MSE = 8.17 in female donkeys, while RH had the highest r 2 = 0.36 and MSE = 8.86 in male donkeys.

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Section: Discussioncontrasting

confidence: 98%

The Use of Linear Body Measurements Predictors of Body Weight of Donkeys at Blouberg Local Municipality, Limpopo, South Africa

Tyasi¹

2022

MJA

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Investigation of the Relationships between Coat Colour, Sex, and Morphological Characteristics in Donkeys Using Data Mining Algorithms

Çelik

Yılmaz

2023

Animals

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This study was carried out in order to determine the morphological characteristics, body coat colour distribution, and body dimensions of donkeys raised in Turkey, as well as to determine the relationships between these factors. For this reason, the predictive performance of various machine learning algorithms (i.e., CHAID, Random Forest, ALM, MARS, and Bagging MARS) were compared, utilising the biometric data of donkeys. In particular, mean measurements were taken from a total of 371 donkeys (252 male and 119 female) with descriptive statistical values as follows: height at withers, 100.7 cm; rump height, 103.1 cm; body length, 103.8 cm; chest circumference, 112.8 cm; chest depth, 45.7 cm; chest width, 29.1 cm; front shin circumference, 13.5 cm; head length, 55 cm; and ear length, 22 cm. The body colour distribution of the donkeys considered in this study was calculated as 39.35% grey, 19.95% white, 21.83% black, and 18.87% brown. Model fit statistics, including the coefficient of determination (R2), mean square error, root-mean-square error (RMSE), mean absolute percentage error (MAPE), and standard deviation ratio (SD ratio), were calculated to measure the predictive ability of the fitted models. The MARS algorithm was found to be the best model for defining the body length of donkeys, with the highest R2 value (0.916) and the lowest RMSE, MAPE, and SD ratio values (2.173, 1.615, and 0.291, respectively). The experimental results indicate that the most suitable model is the MARS algorithm, which provides a good alternative to other data mining algorithms for predicting the body length of donkeys.

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Estimation of Live Weight by Body Measurements in the Miranda Donkey Breed

Cited by 2 publications

References 10 publications

The Use of Linear Body Measurements Predictors of Body Weight of Donkeys at Blouberg Local Municipality, Limpopo, South Africa

The Use of Linear Body Measurements Predictors of Body Weight of Donkeys at Blouberg Local Municipality, Limpopo, South Africa

Investigation of the Relationships between Coat Colour, Sex, and Morphological Characteristics in Donkeys Using Data Mining Algorithms

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