Research Article
A recursive path model for estimation of the live weight using some body measurements in Awassi sheep
Abstract
Aim of this study was to investigate direct, indirect and total effects of body measurements on live weight in Awassi sheep and to derive prediction equations for estimation of the live weight. Live weight, head length, body length, withers height, chest depth, chest width and rump height measurements of 270 Awassi sheep at the age of 2-4 years raised at a private farm in Eskişehir Province, Turkey was used. A recursive path model was established to estimate the live weight of the Awassi sheep using these body measurements. Results showed that there was a significant indirect effect of withers height, rump height and body length and significant direct effect of chest depth, chest width and head length on live weight. The strongest predictor of live weight was chest depth, followed by chest width and head length. In conclusion, the equations given in this study could serve as a practical tool to predict the live weight of Awassi sheep.
References
- Abdelhadi O, Babiker S (2009): Prediction of zebu cattle live weight using live animal measurements. Livest Res Rural Dev, 21, 1-7.
- Afolayan R, Adeyinka I, Lakpini C (2006): The estimation of live weight from body measurements in Yankasa sheep. Czech JAnim Sci, 51, 343. Akçapınar H (2000): Koyun Yetiştiriciliği: ismat matbaası. Ambacıoğlu P, Kaya U, Ozen D, et al. (2017): An Examination of the Relationships Between Live Weight and Body Measurements in Karacabey Merino Sheep Through the Path Analysis Approach. Kafkas Univ Vet Fak Derg, 23, 857-863.
- Atta M (2004): Use of heart girth, wither height and scapuloischial length for prediction of liveweight of Nilotic sheep. Small Rumin Res, 55, 233-237.
- Aziz M, Sharaby M (1993): Collinearity as a problem in predicting body weight from body dimensions of Najdi sheep in Saudi Arabia. Small Rumin Res, 12, 117-124.
- Dormann CF, Elith J, Bacher S, et al. (2013): Collinearity: a review of methods to deal with it and a simulation study evaluating their performance. Ecography, 36, 27-46.
- Draper NR, Smith H (2014): Applied regression analysis: John Wiley & Sons.
- Fajemilehin OS, Salako A (2008): Body measurement characteristics of the West African Dwarf (WAD) Goat in deciduous forest zone of Southwestern Nigeria. Afr J Biotechnol, 7, 2521-2526.
- Goe M, Alldredge J, Light D (2001): Use of heart girth to predict body weight of working oxen in the Ethiopian highlands. Livest Prod Sci, 69, 187-195.
- Jeon J (2015): The strengths and limitations of the statistical modeling of complex social phenomenon: Focusing on SEM, path analysis, or multiple regression models. Int J Soc Behav Educ Econ Bus Ind Eng, 9, 1559-1567.
- Koyuncu M, Tuncel E (1992): The relationships between hair characteristics, live weight and body measurements in Anatolian Black Goats. Uludag Univ Sci Inst Pub, 20.
- Machebe N, Ezekwe A, Okeke G, et al. (2016): Path analysis of body weight in grower and finisher pigs. Indian J Anim Res, 50, 794-798.
- Mahieu M, Navès M, Arquet R (2011): Predicting the body mass of goats from body measurements. Livest Res Rural Dev, 23.
- Mahmud MA, Shaba P, Abdulsalam W, et al. (2014): Live body weight estimation using cannon bone length and other body linear measurements in Nigerian breeds of sheep. J Adv Vet Anim Res, 1, 169-176.
- Mohammed I, Amin J (1997): Estimating body weight from morphometric measurements of Sahel (Borno White) goats. Small Ruminant Research, 24, 1-5.
- Naskar S, Banik S, Tomar S (2006): Contribution of different characters to lactation milk yield of Sahiwal cattle-A path analysis approach. Indian J Anim Sci, 76, 618.
- Nsoso S, Aganga A, Moganetsi B, et al. (2003): Body weight, body condition score and heart girth in indigenous Tswana goats during the dry and wet seasons in southeast Botswana. Livest Res Rural Dev, 15, 1-7.
- Özbeyaz C, Bilgiç ÖF, Kocakaya A, et al. (2018): Investigation of some traits of Awassi sheep in breeder conditions in Eskişehir. Lalahan Hay Arast Enst Derg, 58, 1-6.
- Ozturk A, Kayis S, Parlat S, et al. (1994): The possibilities of estimating the live weight using some body measurements in Konya Merino. J Anim Res, 4, 23-26.
- Paul SS, Das KS (2012): Prediction of Body Weight from Linear Body Measurements in Nili-Ravi Buffalo Calves. J Buffalo Sci, 1, 32-34.
- Petraitis P, Dunham A, Niewiarowski P (1996): Inferring multiple causality: the limitations of path analysis. Functional ecology, 10, 421-431.
- Sangun L, Cankaya S, Kayaalp GT, et al. (2009): Use of factor analysis scores in multiple regression model for estimation of body weight from some body measurements in Lizardfish. J Anim Vet Adv, 8, 47-50.
- Sowande O, Sobola O (2008): Body measurements of West African dwarf sheep as parameters for estimation of live weight. Tropic Anim Health Prod, 40, 433-439.
- Talafha AQ, Ababneh MM (2011): Awassi sheep reproduction and milk production. Tropic Anim Health Prod, 43, 1319-1326.
- Tariq MM, Eyduran E, Bajwa MA, et al. (2012): Prediction of Body Weight from Testicular and Morphological Characteristics in Indigenous Mengali Sheep of Pakistan using Factor Analysis Scores in Multiple Linear Regression Analysis. Int J Agric Biol, 14, 590-594.
- Thobela Louis T, Yolisa Florance T, Akhona Lucy T, et al. (2015): A Study of Relationship between Body Weight and Morphological Traits by using Path Analysis in South African indigenous Sheep. J Biol Agri Health, 5, 1-5.
- Topal M, Yildiz N, Esenbuğa N, et al. (2003): Determination of best fitted regression model for estimation of body weight in Awassi sheep. J Appl Anim Res, 23, 201-208.
- Valdez C, Tupas D, Matias J (1997): Determination of body weight in sheep using external body measurements. Philipp J Vet Med, 34, 25-31. Walugembe M, Nadiope G, Stock J, et al. (2014): Prediction of live body weight using various body measurements in Ugandan village pigs. Livest Res Rural Dev, 26, 1.
- Weisberg S (2005): Applied linear regression, John Wiley & Sons. New York, USA.
- Yakubu A (2011): Fixing multicollinearity instability in the prediction of body weight from morphometric traits of White Fulani cows. J Centr EuroAgri, 11, 487-492.
- Yakubu A (2010): Path coefficient and path analysis of body weight and biometric traits in Yankasa lambs. Slovak J Anim Sci, 43, 17-25.
- Zarkawi M (1997): Monitoring the reproductive performance in Awassi ewes using progesterone radioimmunoassay. Small Ruminant Res, 26, 291-294.
İvesi koyunlarında bazı vücut ölçüleri yardımıyla canlı ağırlığın tahmin edilmesinde kullanılabilecek rekursif bir path modeli
Abstract
Bu çalışmanın amacı, İvesi ırkı koyunlarda çeşitli vücut ölçülerininin canlı ağırlık üzerine doğrudan, dolaylı ve toplam etkilerini incelemek ve bu ölçülerden yararlanarak canlı ağırlığı tahmin edecek bir model oluşturmaktır. Bu amaçla, Eskişehir ilinde özel bir çiftlikte yetiştirilen 2-4 yaşlarındaki toplam 270 İvesi ırkı koyunun canlı ağırlığı, baş uzunluğu, gövde uzunluğu, cidago yüksekliği, göğüs derinliği, göğüs genişliği ve sağrı yüksekliği ölçümleri elde edilmiştir. Bu ölçümler yardımıyla canlı ağırlığı tahmin etmek için rekursif bir path modeli oluşturulmuştur. Elde edilen sonuçlar, cidago yüksekliği, sağrı yüksekliği ve vücut uzunluğunun vücut ağırlığına dolaylı; göğüs genişliği, göğüs derinliği ve baş uzunluğunun ise doğrudan etkisinin olduğunu göstermiştir. Canlı ağırlığın en güçlü belirleyicisi göğüs derinliği, ardından göğüs genişliği ve baş uzunluğu olarak belirlenmiştir. Sonuç olarak, bu çalışmada verilen denklemlerin, İvesi koyunlarının canlı ağırlığını tahmin etmek için pratik bir araç olarak kullanılabileceği ortaya konmuştur.
References
- Abdelhadi O, Babiker S (2009): Prediction of zebu cattle live weight using live animal measurements. Livest Res Rural Dev, 21, 1-7.
- Afolayan R, Adeyinka I, Lakpini C (2006): The estimation of live weight from body measurements in Yankasa sheep. Czech JAnim Sci, 51, 343. Akçapınar H (2000): Koyun Yetiştiriciliği: ismat matbaası. Ambacıoğlu P, Kaya U, Ozen D, et al. (2017): An Examination of the Relationships Between Live Weight and Body Measurements in Karacabey Merino Sheep Through the Path Analysis Approach. Kafkas Univ Vet Fak Derg, 23, 857-863.
- Atta M (2004): Use of heart girth, wither height and scapuloischial length for prediction of liveweight of Nilotic sheep. Small Rumin Res, 55, 233-237.
- Aziz M, Sharaby M (1993): Collinearity as a problem in predicting body weight from body dimensions of Najdi sheep in Saudi Arabia. Small Rumin Res, 12, 117-124.
- Dormann CF, Elith J, Bacher S, et al. (2013): Collinearity: a review of methods to deal with it and a simulation study evaluating their performance. Ecography, 36, 27-46.
- Draper NR, Smith H (2014): Applied regression analysis: John Wiley & Sons.
- Fajemilehin OS, Salako A (2008): Body measurement characteristics of the West African Dwarf (WAD) Goat in deciduous forest zone of Southwestern Nigeria. Afr J Biotechnol, 7, 2521-2526.
- Goe M, Alldredge J, Light D (2001): Use of heart girth to predict body weight of working oxen in the Ethiopian highlands. Livest Prod Sci, 69, 187-195.
- Jeon J (2015): The strengths and limitations of the statistical modeling of complex social phenomenon: Focusing on SEM, path analysis, or multiple regression models. Int J Soc Behav Educ Econ Bus Ind Eng, 9, 1559-1567.
- Koyuncu M, Tuncel E (1992): The relationships between hair characteristics, live weight and body measurements in Anatolian Black Goats. Uludag Univ Sci Inst Pub, 20.
- Machebe N, Ezekwe A, Okeke G, et al. (2016): Path analysis of body weight in grower and finisher pigs. Indian J Anim Res, 50, 794-798.
- Mahieu M, Navès M, Arquet R (2011): Predicting the body mass of goats from body measurements. Livest Res Rural Dev, 23.
- Mahmud MA, Shaba P, Abdulsalam W, et al. (2014): Live body weight estimation using cannon bone length and other body linear measurements in Nigerian breeds of sheep. J Adv Vet Anim Res, 1, 169-176.
- Mohammed I, Amin J (1997): Estimating body weight from morphometric measurements of Sahel (Borno White) goats. Small Ruminant Research, 24, 1-5.
- Naskar S, Banik S, Tomar S (2006): Contribution of different characters to lactation milk yield of Sahiwal cattle-A path analysis approach. Indian J Anim Sci, 76, 618.
- Nsoso S, Aganga A, Moganetsi B, et al. (2003): Body weight, body condition score and heart girth in indigenous Tswana goats during the dry and wet seasons in southeast Botswana. Livest Res Rural Dev, 15, 1-7.
- Özbeyaz C, Bilgiç ÖF, Kocakaya A, et al. (2018): Investigation of some traits of Awassi sheep in breeder conditions in Eskişehir. Lalahan Hay Arast Enst Derg, 58, 1-6.
- Ozturk A, Kayis S, Parlat S, et al. (1994): The possibilities of estimating the live weight using some body measurements in Konya Merino. J Anim Res, 4, 23-26.
- Paul SS, Das KS (2012): Prediction of Body Weight from Linear Body Measurements in Nili-Ravi Buffalo Calves. J Buffalo Sci, 1, 32-34.
- Petraitis P, Dunham A, Niewiarowski P (1996): Inferring multiple causality: the limitations of path analysis. Functional ecology, 10, 421-431.
- Sangun L, Cankaya S, Kayaalp GT, et al. (2009): Use of factor analysis scores in multiple regression model for estimation of body weight from some body measurements in Lizardfish. J Anim Vet Adv, 8, 47-50.
- Sowande O, Sobola O (2008): Body measurements of West African dwarf sheep as parameters for estimation of live weight. Tropic Anim Health Prod, 40, 433-439.
- Talafha AQ, Ababneh MM (2011): Awassi sheep reproduction and milk production. Tropic Anim Health Prod, 43, 1319-1326.
- Tariq MM, Eyduran E, Bajwa MA, et al. (2012): Prediction of Body Weight from Testicular and Morphological Characteristics in Indigenous Mengali Sheep of Pakistan using Factor Analysis Scores in Multiple Linear Regression Analysis. Int J Agric Biol, 14, 590-594.
- Thobela Louis T, Yolisa Florance T, Akhona Lucy T, et al. (2015): A Study of Relationship between Body Weight and Morphological Traits by using Path Analysis in South African indigenous Sheep. J Biol Agri Health, 5, 1-5.
- Topal M, Yildiz N, Esenbuğa N, et al. (2003): Determination of best fitted regression model for estimation of body weight in Awassi sheep. J Appl Anim Res, 23, 201-208.
- Valdez C, Tupas D, Matias J (1997): Determination of body weight in sheep using external body measurements. Philipp J Vet Med, 34, 25-31. Walugembe M, Nadiope G, Stock J, et al. (2014): Prediction of live body weight using various body measurements in Ugandan village pigs. Livest Res Rural Dev, 26, 1.
- Weisberg S (2005): Applied linear regression, John Wiley & Sons. New York, USA.
- Yakubu A (2011): Fixing multicollinearity instability in the prediction of body weight from morphometric traits of White Fulani cows. J Centr EuroAgri, 11, 487-492.
- Yakubu A (2010): Path coefficient and path analysis of body weight and biometric traits in Yankasa lambs. Slovak J Anim Sci, 43, 17-25.
- Zarkawi M (1997): Monitoring the reproductive performance in Awassi ewes using progesterone radioimmunoassay. Small Ruminant Res, 26, 291-294.
There are 31 citations in total.
Details
| Primary Language | English |
|---|---|
| Subjects | Veterinary Surgery |
| Journal Section | Research Article |
| Authors | |
| Publication Date | June 14, 2019 |
| Published in Issue | Year 2019Volume: 66 Issue: 3 |