Estimation of Actual and Ideal Bodyweight Using Morphometric Measurements and Owner Guessed Bodyweight of Adult Draft and Warmblood Horses

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Abstract

Bodyweight (BW) estimation equations have not been developed for draft and warmblood horses. The objectives were to develop BW estimation equations using morphometric measurements for draft and warmblood horses and investigate horse owner's ability to estimate BW. Morphometric measurements were collected on adult (≥3 years), nonpregnant, draft (n = 138), and warmblood (n = 89) horses. Personnel measured wither height, body length (BL) from the point of the shoulder to the point of the buttock (BL wrap), BL from the point of the shoulder to a line perpendicular to the point of the buttock (BL straight), neck circumference, girth circumference, body condition, and BW using a livestock scale. Equations for the estimation of BW were developed using linear regression. For estimated BW, the model was fit using all individuals and all morphometric measurements, except BL wrap. For ideal BW, the model was fit using individuals with a body condition score of 5, BL straight, and height. Bodyweight (kg) was estimated by taking [girth (cm)1.528 × BL straight (cm)0.574 × height (cm)0.246 × neck (cm)0.261]/1,181 (draft) or 1,209 (warmblood)] (R2 = 0.96; root mean square error [rMSE] = 28 kg). This was an improvement over the previous BW estimation equation (R2 = 0.94; rMSE = 34 kg). Ideal BW (kg) was estimated by [4.92 × BL straight (cm)] + [4.64 × height (cm)] - 951 (draft) or 1,016 (WB)(R2 = 0.90; rMSE = 33 kg). Owners accurately estimated horse BW (R2 = 0.87). Morphometric measurements were used to develop BW-related equations for draft and warmblood horses.

Original languageEnglish (US)
Pages (from-to)38-43
Number of pages6
JournalJournal of Equine Veterinary Science
Volume39
DOIs
StatePublished - Apr 1 2016

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Horses
horses
body length
body weight
Buttocks
Neck
buttocks
Body Height
Livestock
girth
shoulders
neck
body condition
Linear Models
withers
human resources
livestock

Keywords

  • Body condition score
  • Bodyweight estimation
  • Draft horse breed
  • Ideal bodyweight
  • Warmblood horse breed

Cite this

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title = "Estimation of Actual and Ideal Bodyweight Using Morphometric Measurements and Owner Guessed Bodyweight of Adult Draft and Warmblood Horses",
abstract = "Bodyweight (BW) estimation equations have not been developed for draft and warmblood horses. The objectives were to develop BW estimation equations using morphometric measurements for draft and warmblood horses and investigate horse owner's ability to estimate BW. Morphometric measurements were collected on adult (≥3 years), nonpregnant, draft (n = 138), and warmblood (n = 89) horses. Personnel measured wither height, body length (BL) from the point of the shoulder to the point of the buttock (BL wrap), BL from the point of the shoulder to a line perpendicular to the point of the buttock (BL straight), neck circumference, girth circumference, body condition, and BW using a livestock scale. Equations for the estimation of BW were developed using linear regression. For estimated BW, the model was fit using all individuals and all morphometric measurements, except BL wrap. For ideal BW, the model was fit using individuals with a body condition score of 5, BL straight, and height. Bodyweight (kg) was estimated by taking [girth (cm)1.528 × BL straight (cm)0.574 × height (cm)0.246 × neck (cm)0.261]/1,181 (draft) or 1,209 (warmblood)] (R2 = 0.96; root mean square error [rMSE] = 28 kg). This was an improvement over the previous BW estimation equation (R2 = 0.94; rMSE = 34 kg). Ideal BW (kg) was estimated by [4.92 × BL straight (cm)] + [4.64 × height (cm)] - 951 (draft) or 1,016 (WB)(R2 = 0.90; rMSE = 33 kg). Owners accurately estimated horse BW (R2 = 0.87). Morphometric measurements were used to develop BW-related equations for draft and warmblood horses.",
keywords = "Body condition score, Bodyweight estimation, Draft horse breed, Ideal bodyweight, Warmblood horse breed",
author = "Catalano, {Devan N.} and Coleman, {Robert J.} and Hathaway, {Marcia R.} and McCue, {Molly E.} and Rendahl, {Aaron K.} and Martinson, {Krishona L.}",
year = "2016",
month = "4",
day = "1",
doi = "10.1016/j.jevs.2015.09.002",
language = "English (US)",
volume = "39",
pages = "38--43",
journal = "Journal of Equine Veterinary Science",
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T1 - Estimation of Actual and Ideal Bodyweight Using Morphometric Measurements and Owner Guessed Bodyweight of Adult Draft and Warmblood Horses

AU - Catalano, Devan N.

AU - Coleman, Robert J.

AU - Hathaway, Marcia R.

AU - McCue, Molly E.

AU - Rendahl, Aaron K.

AU - Martinson, Krishona L.

PY - 2016/4/1

Y1 - 2016/4/1

N2 - Bodyweight (BW) estimation equations have not been developed for draft and warmblood horses. The objectives were to develop BW estimation equations using morphometric measurements for draft and warmblood horses and investigate horse owner's ability to estimate BW. Morphometric measurements were collected on adult (≥3 years), nonpregnant, draft (n = 138), and warmblood (n = 89) horses. Personnel measured wither height, body length (BL) from the point of the shoulder to the point of the buttock (BL wrap), BL from the point of the shoulder to a line perpendicular to the point of the buttock (BL straight), neck circumference, girth circumference, body condition, and BW using a livestock scale. Equations for the estimation of BW were developed using linear regression. For estimated BW, the model was fit using all individuals and all morphometric measurements, except BL wrap. For ideal BW, the model was fit using individuals with a body condition score of 5, BL straight, and height. Bodyweight (kg) was estimated by taking [girth (cm)1.528 × BL straight (cm)0.574 × height (cm)0.246 × neck (cm)0.261]/1,181 (draft) or 1,209 (warmblood)] (R2 = 0.96; root mean square error [rMSE] = 28 kg). This was an improvement over the previous BW estimation equation (R2 = 0.94; rMSE = 34 kg). Ideal BW (kg) was estimated by [4.92 × BL straight (cm)] + [4.64 × height (cm)] - 951 (draft) or 1,016 (WB)(R2 = 0.90; rMSE = 33 kg). Owners accurately estimated horse BW (R2 = 0.87). Morphometric measurements were used to develop BW-related equations for draft and warmblood horses.

AB - Bodyweight (BW) estimation equations have not been developed for draft and warmblood horses. The objectives were to develop BW estimation equations using morphometric measurements for draft and warmblood horses and investigate horse owner's ability to estimate BW. Morphometric measurements were collected on adult (≥3 years), nonpregnant, draft (n = 138), and warmblood (n = 89) horses. Personnel measured wither height, body length (BL) from the point of the shoulder to the point of the buttock (BL wrap), BL from the point of the shoulder to a line perpendicular to the point of the buttock (BL straight), neck circumference, girth circumference, body condition, and BW using a livestock scale. Equations for the estimation of BW were developed using linear regression. For estimated BW, the model was fit using all individuals and all morphometric measurements, except BL wrap. For ideal BW, the model was fit using individuals with a body condition score of 5, BL straight, and height. Bodyweight (kg) was estimated by taking [girth (cm)1.528 × BL straight (cm)0.574 × height (cm)0.246 × neck (cm)0.261]/1,181 (draft) or 1,209 (warmblood)] (R2 = 0.96; root mean square error [rMSE] = 28 kg). This was an improvement over the previous BW estimation equation (R2 = 0.94; rMSE = 34 kg). Ideal BW (kg) was estimated by [4.92 × BL straight (cm)] + [4.64 × height (cm)] - 951 (draft) or 1,016 (WB)(R2 = 0.90; rMSE = 33 kg). Owners accurately estimated horse BW (R2 = 0.87). Morphometric measurements were used to develop BW-related equations for draft and warmblood horses.

KW - Body condition score

KW - Bodyweight estimation

KW - Draft horse breed

KW - Ideal bodyweight

KW - Warmblood horse breed

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