Índices corporais para o cavalo pantaneiro

McManus, Concepta; Santos, S. A.; Silva, Joaquim A. da; Louvandini, Hélder; Abreu, U. G. P. de; Sereno, J. R. B.; Mariante, A. da S.

doi:10.11606/issn.1678-4456.bjvras.2008.26677

Cited by 12 publications

(1 citation statement)

References 7 publications

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“…The factor associated with commercial characterization, which in turn is directly related to the animal's production capacity, and consequently greater body and carcass weight, has a direct in uence with LegY, as this variable has the greatest quantitative representation of a sheep carcass (McManus et al,2008;Trindade et al, 2018). The chest height indicates the stature of the animal, and it is recommended to raise small sheep for the Caatinga biome since the availability of food during the dry period of the year is mostly located in herbaceous extract (Nunes et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Selection Criteria for Meat Production Based on the Morphometry of Morada Nova Lambs: A Systematic Approach

Alves¹,

Vega²,

Silveira³

et al. 2021

Preprint

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The objective of this study was to characterize the meat production potential of Morada Nova lambs from different genetic groups using morphological and zoometric data, performance and carcass characteristics. A total of 24 non-castrated male lambs from two genetic groups were used: Morada Nova red (MNR) and Morada Nova F1 red x Morada Nova white (MNF1) breed, with an initial mean body weight of 16.9 ± 3.43 kg and an average age of four months were distributed in a completely randomized design. Evaluations of morphometric data and zoom indices, performance and carcass characteristics were measured and calculated. Univariate and multivariate techniques were used to differentiate and reduce the number of variables, to group them and then develop and validate a sheep meat production index. Only 12 differences in the 29 morphometric measurements and zoometric indices analyzed were observed (P < 0.05). Furthermore, only 7 of the 28 quantitative and qualitative characteristics of the carcass were greater (P < 0.05) in MNF1 lambs. The yields of commercial cuts and the physical-chemical characteristics and qualitative measurements of the carcass were similar (P > 0.05) between the genetic groups. All groups of variables, except the cut yield, have discriminatory power (P < 0.05) with the highest classification percentages for body morphometry (91.3%) and zoometric indices (95.7%). The four identified factors, which together explain more than 85.0% of the total data variation, were renamed in the following order of importance: morpho-economic (38.5%), morpho-productive (18.8%), morpho-commercial (17.5%), and equilibrium (11.0%). The heat map showed the suitability in the morpho-commercial and morpho-economic factors for MNF1 lambs, while the MNR lambs showed emphasis for the equilibrium factor. Thus, the Sheep Meat Morphometric Index (SMMI) resulted in the following equation SMMI =\(\frac{\text{A}\text{I} \times 0.771 + \text{C}\text{H} \times 0.759 + \text{R}\text{H} \times 0.878 + \text{T}\text{P}\text{R}\text{I} \times 0.876 + \text{B}\text{I} \times 0.550 + \text{C}\text{W} \times 0.905}{100}\) In which: AI is the anamorphosis index; CH is chest height; RH is rump height; TPRI is the thoracic perimeter relation index; BI is body index; and CW is chest width. The application and validation of the developed index showed superiority (P < 0.001) for meat production in the crossed lambs. MNR and MNF1 lambs have high thoracic development, compact character and aptitude for meat production. Lambs crossed between genetic groups of the MN breed are another sustainable option for sheep production in drylands. It is recommended that the SMMI be used as a tool for morpho-productive selection criteria in breeding programs in the MN breed, as well as other small native breeds.

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Section: Discussionmentioning

confidence: 99%

Selection Criteria for Meat Production Based on the Morphometry of Morada Nova Lambs: A Systematic Approach

Alves¹,

Vega²,

Silveira³

et al. 2021

Preprint

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Evaluations of Morphometric Traits and Body Conformation Indices of Horse Ecotypes Reared in the Highlands of Bale Eco‐Region, Ethiopia

Guyo,

Tareke,

Tonamo

et al. 2024

Veterinary Medicine & Sci

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BackgroundMorphometric traits discrepancies are associated with production, reproduction, adaptation and behaviours in horses. It also determines the design of harnessing implements, physical injury level and working performance of the native horses. Thus, the study was conducted to evaluate morphometric traits and body conformation indices of horse ecotypes reared across four districts of Bale Zone, Ethiopia.MethodsData of croup height, croup length, hip height, mid‐back height, wither height, hip width, thoracic depth, chest width, body length, sternum height, thorax perimeter and cannon perimeter were measured in 500 horses (294 male and 206 female). Using those traits, 17 body conformation indices were calculated to define the horses for multi‐faceted performances.ResultsThe study revealed that croup height, hip height, wither height, hip width, croup length, body length, thorax perimeter and sternum height were significantly (p < 0.0001) different among the studied districts. The district effect was also significant at p < 0.05 for mid‐back height, thoracic depth, chest width and cannon perimeter. The sexual dimorphism effect was statistically significant for all measured traits; however, females were inferior to males except for cannon perimeter. Body conformation indices of pelvic index, body index, transversal pelvic index and weight were highly significant (p < 0.0001) among the studied districts. The sex dimorphism effect was significant (p < 0.001) for dactyl‐costal index, pelvic index, longitudinal pelvic index, transversal pelvic index, weight, tare index 1 (trot or gallop), tare index 2 (walk) and riding comfort degree, while non‐significant (p > 0.05) for the remaining indices. The studied horses were classified as mediline, elipometric, light, small and suitable riding ecotypes with a medium‐conforming body structure and good capacity for carrying loads on carts and backs for functional effectiveness. The correlations of body conformation indices ranged from very high to low, with positive and negative associations for functional capabilities.ConclusionTherefore, selection for improvement needs to rank morphometric traits and body conformation indices in correlation to developing racing and modern sport horses in the highlands of the Bale eco‐regions. Further, molecular studies will be essential to determine whether the predominated phenotypic multiplicity is genetic or environmentally progressed.

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Fine-scale genetic diversity of the Brazilian Pantaneiro horse breed adapted to flooded regions

Nogueira

McManus

Faria

et al. 2021

Trop Anim Health Prod

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Índices corporais para o cavalo pantaneiro

Cited by 12 publications

References 7 publications

Selection Criteria for Meat Production Based on the Morphometry of Morada Nova Lambs: A Systematic Approach

Selection Criteria for Meat Production Based on the Morphometry of Morada Nova Lambs: A Systematic Approach

Evaluations of Morphometric Traits and Body Conformation Indices of Horse Ecotypes Reared in the Highlands of Bale Eco‐Region, Ethiopia

Fine-scale genetic diversity of the Brazilian Pantaneiro horse breed adapted to flooded regions

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