STATISTICAL MODELS TO ESTIMATE PRODUCTIVE TRAITS IN LORI RAM LAMBS

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

KHOSRAVINIA H.A.; AZARFAR A.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2007 | Volume:17 | Issue:3 Page(s): 119-128

Download Full-Text

Persian Verion

View:

770

Download:

Cites:

Information Journal Paper

Title

STATISTICAL MODELS TO ESTIMATE PRODUCTIVE TRAITS IN LORI RAM LAMBS

Author(s)

KHOSRAVINIA H.A. | AZARFAR A. | Issue Writer Certificate

Keywords

ABDOMINAL FATQ3

BLOOD FAT COMPONENTSQ3

EXTERNAL BODY MEASURESQ3

FAT-TAILQ3

STATISTICAL MODELSQ3

Abstract

An investigation was undertaken to provide linear and non linear models with and without intercept to estimate FAT-TAIL and ABDOMINAL FAT weight based on BLOOD FAT COMPONENTS and to predict the fattening capability derived from body weight and EXTERNAL BODY MEASURES using 57 Lori ram lambs aging 60-75days. Trunk length (X1), body height (at shoulders:X2), Breast height (X3), rump width (X4), FAT-TAIL circumference (X5), heart girdle (X6), muzzle dimensions (at 3 cm above nasal openings: width (X7), height (X8), circumference (X9), scrotal diameters (X10), scrotal circumference (X11) and live body weight (X12) were recorded at commencements well as at the close of fattening trial (70 days). All lambs were slaughtered to gather the data on cholesterol, triglycerides, HDL, LDL level in blood along with FAT-TAIL and ABDOMINAL FAT weight at 70th days. The most precise estimation for FAT-TAIL weight was achieved by a linear and without intercept, model consisting of (X19), (X13), (X14), (X15), (X16) and (X17) variants with R2=0.973. To estimate the ABDOMINAL FAT weight a nonlinear, and without intercept, model including (log X13),(X193)and (log X13) found to be the best (R2=0.969). Accuracy of a model containing (X39), (logX12), (X6) and (X113) was maximum for prediction of live body weight at the close of fattening period (R2=0.996). Finally, a nonlinear model without intercept consisted of (log X5), (X39), (X30.5) and (X123) was of the highest reliability to predict the feed conversion ratio (R2=0.97).

Cites

No record.

References

No record.

Cite

APA: Copy

AZARFAR, A., & KHOSRAVINIA, H.A.. (2007). STATISTICAL MODELS TO ESTIMATE PRODUCTIVE TRAITS IN LORI RAM LAMBS. JOURNAL OF AGRICULTURAL KNOWLEDGE, 17(3), 119-128. SID. https://sid.ir/paper/28786/en

Vancouver: Copy

AZARFAR A., KHOSRAVINIA H.A.. STATISTICAL MODELS TO ESTIMATE PRODUCTIVE TRAITS IN LORI RAM LAMBS. JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2007;17(3):119-128. Available from: https://sid.ir/paper/28786/en

IEEE: Copy

A. AZARFAR, and H.A. KHOSRAVINIA, “STATISTICAL MODELS TO ESTIMATE PRODUCTIVE TRAITS IN LORI RAM LAMBS,” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 17, no. 3, pp. 119–128, 2007, [Online]. Available: https://sid.ir/paper/28786/en

Related Journal Papers