Morphometrics Characterization of Thin-Tail Sheep in Lowland and Highland Areas

Depison, Depison; Putra, Widya Pintaka Bayu; Gushairiyanto, Gushairiyanto; Alwi, Yun; Suryani, Heni

doi:10.5398/tasj.2021.44.4.386

Cited by 12 publications

(15 citation statements)

References 37 publications

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“…Similarly, Putra and Ilham (2019) also reported a negative association between body index and proportionality, and no significant association between body and area indices in Katjang does of Indonesia. Depison et al (2021) discovered a positive correlation between body and dactyl thoracic and length indices, and no significant correlation with height index in Thin-Tail sheep. The findings of the current study suggest that body index can be improved effectively using body indices.…”

Section: Discussionmentioning

confidence: 82%

Principal Component Analysis of morphometric traits and body indices in South African Kalahari Red goats

Tyasi¹,

Tada²

2023

SA J. An. Sci.

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Principal component analysis (PCA) is a vital statistical technique for defining the morphological structure of livestock but has not been used in South African Kalahari Red goats. Thirteen morphometric traits and eleven body indices from two hundred and ninety-six (296) South African Kalahari Red goats (269 does and 27 bucks) aged 2–3 years were used to define morphological structure using PCA. The coefficient of determination (R2), root mean square error (RMSE), Akaike’s information criterion (AIC), Mallows' Cp-statistic (Cp), and coefficient of variation (CV) were used to select the best fit model. Body weight was correlated with all morphometric traits in both sexes. The first two principal components explained 87.31% of the variation in measurements from male goats and 62.32% of the trait variation in the females. The inclusion of head length, body length, canon circumference, rump length, rump width, body condition score, wither height, and rump height increased the accuracy to 98% with smaller RMSE (2.42), AIC (55.35), Cp (10.00), and CV (3.98), and the use of PC1 and PC2 included 94% of the variation (RMSE, 3.62; AIC, 72.26; Cp, 3.00; CV, 5.94 in males). In females, the inclusion of all morphometric traits included 87% of the variation (RMSE, 2.93; AIC, 590.63; Cp, 13.00; CV 5.87). The use of PC1 and PC2 included 82% of the variation (RMSE, 3.41; AIC, 663.60; Cp, 3.00; CV, 6.84). PCA can therefore be used in breeding programs to define the morphological structure of South African Kalahari Red goats with a severe reduction in the number of morphometric traits to be recorded.

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Section: Discussionmentioning

confidence: 82%

Principal Component Analysis of morphometric traits and body indices in South African Kalahari Red goats

Tyasi¹,

Tada²

2023

SA J. An. Sci.

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“…The individuals, older than one year, were randomly selected from different flocks. The measurements were performed according to the (FAO, 2012) guidelines, using Lydthin's stick and flexible measuring tape (Depison et al, 2021). Data were collected in January -March 2022.…”

Section: Methodsmentioning

confidence: 99%

Morphometric Characterization of Four Sheep Breeds Reared in South East of Albania

HODA¹,

Meçaj²,

HYKAJ³

2022

AgricultForest

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Sheep are an important livestock species in Albania. The study was conducted at the Agricultural Technology Transfer Center of Korca in South East area of Albania. This study is focused in two local sheep breeds that have the status as endangered, Shkodrane and Lara e Polisit and two imported breeds Awasi and Il de France reared in this region under the care, responsibility and management of ATTC of Korca. Morphometric measurements and indices of a 190 unrelated and randomly selected animals were analyzed. Awasi have the largest wither height (70.31), rump height (73.56), body length (117.87), chest depth (36.16). Il de France is the largest breed related to rump width (24.89) chest circumference (90.978), cannon bone circumference (8.91), body weight (55.29). Shkodrane is the smallest breed regrading to body length (93.56), chest dept (30.98), chest width (15.91), chest circumference (76.31). All breeds have rectangular body frame, with an index of body frame ranging from 153.06 to 167.87. All morphometric traits were significantly positively correlated. The analysis indicated that body weight was highly correlated with all morphometric measurements. The highest correlation was with chest circumference (0.92) and the smallest (0.65) with cannon bone circumference. The PCA of all morphometric parameters indicated that the three components accounted 90.3% of the cumulative variance. The PCA and UPGMA indicated some admixture between two Albanian sheep breeds Shkodrane and Lara e Polisit and a pure differentiation of Ile de France and Awasi. A regression analysis was performed to predict the body weight from morphometric measurements.

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“…The shape of the ears of the sheep's ear with the shape of the ears of other small ruminants has a difference. The shape of the sheep's ear has three forms, namely: upright, slightly hanging and hanging [8]. The results of assessing the shape of the ears of Fat Tailed and Texel sheep are presented in Table 2.…”

Section: Shape Of Ear In Fts and Texel Sheepmentioning

confidence: 99%

Morphometric Characteristics in Local Sheep and Nonlocal Sheep

Maylinda¹,

Mahmud²,

Hidayat³

2023

Advances in Biological Sciences Research

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The objectives of the research were to find out the morphometric characteristics (qualitative and quantitative traits) in local sheep, especially Fat-tailed sheep (JFTS) and nonlocal sheep (Texel sheep). The observation was done in 24 FTS ewe and 39 Texel ewe. Variables in this research was the qualitative characteristics of adult FTS ewe including the color of white wool, the shape of the long head, and erect/droopy ears, while in adult Texel ewe it is the color of white wool and brownish, the shape of the head is the majority medium, erect/droopy ear. Quantitative characteristic of adult FTS include head length 19.58 ± 0.82 cm,

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Morphometrics Characterization of Thin-Tail Sheep in Lowland and Highland Areas

Cited by 12 publications

References 37 publications

Principal Component Analysis of morphometric traits and body indices in South African Kalahari Red goats

Principal Component Analysis of morphometric traits and body indices in South African Kalahari Red goats

Morphometric Characterization of Four Sheep Breeds Reared in South East of Albania

Morphometric Characteristics in Local Sheep and Nonlocal Sheep

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