Prediction of Body Weight and other Linear Body Measurement of Two Commercial Layer Strain Chickens

2011 ◽  
Vol 6 (1) ◽  
pp. 13-22 ◽  
Author(s):  
L.O. Ojedapo ◽  
S.R. Amao ◽  
S.A. Ameen ◽  
T.A. Adedeji ◽  
R.I. Ogundipe ◽  
...  
Keyword(s):  
Body Weight ◽  
Body Measurement ◽  
Linear Body

scholarly journals COMPARISON OF SOME LINEAR BODY MEASUREMENT TRAITS OF LOCAL AND COMMERCIAL CHICKEN BREEDS OF SOUTH AFRICA

2021 ◽  
Vol 13 (1) ◽  
pp. 134-143
Author(s):  
Thobela Louis Tyasi ◽  
Khomotso Mashiloane ◽  
Kwena Mokoena
Keyword(s):  
Body Weight ◽  
Wing Length ◽  
T Test ◽  
Chest Circumference ◽  
Body Measurement ◽  
Layer Chicken ◽  
Commercial Chicken ◽  
Body Measurement Traits ◽  
Beak Length ◽  
Linear Body

Linear body measurement traits are used for the estimation of body weight in animal breeding to aid livestock farmers where the weighing scale is not available. The objective of the work was to determine the effect of breed on body weight (BW) and linear body measurement traits such as wing length (WL), keel length (KL), shank circumference (SC), chest circumference (CC) and beak length (BL) of two (Hy-line Silver Brown and Potchefstroom Koekoek) layer chicken layer breeds. A total of 100 layers with 50 for each breed were randomly selected for the study at the age of 22 weeks. Pearson’s correlation and Student T-Test were used for data analysis. Correlation was employed to examine the relationship between measured traits in each breed. Correlation findings showed that BW had a highly positive statistical significant correlation (p < 0.01) with WL (r = 0.76) in Potchefstroom Koekoek breed, while BW had a negative statistical significant correlation (p < 0.05) with WL (r = -0.27) in Hy-line Silver Brown chicken layer breed.  Student T-Test results indicated that Potchefstroom Koekoek chicken layer breed was statistically (P<0.05) heavier than Hy-line Silver Brown chicken layer breed. Potchefstroom Koekoek had longer wing length and chest circumference than Hy-line Silver Brown while Hy-line Silver Brown had longer (P<0.05) keel length, shank circumference and beak length than Potchefstroom Koekoek. It is concluded that the results suggest that Potchefstroom Koekoek chicken layer breed is a weightier indigenous layer but keel length, shank circumference and beak length might require improvement. It also suggests that improvement of WL might improve BW of Potchefstroom Koekoek breed while improvement of WL might decrease BW of Hy-line Silver Brown chicken layer breed.

scholarly journals Relationships between body weight and some linear morphometric traits in Nigerian Nsukka ecotype local hens

Agro-Science ◽  
2021 ◽  
Vol 20 (3) ◽  
pp. 110-113
Author(s):  
N.E. Ikeh ◽  
O.R. Okwesili
Keyword(s):  
Body Weight ◽  
Growth Traits ◽  
Pearson Correlation ◽  
Coefficient Of Determination ◽  
Regression Equations ◽  
Body Measurements ◽  
Body Measurement ◽  
Thigh Circumference ◽  
Body Measurement Traits ◽  
Linear Body

Body weight (BW) and linear body measurements of 120 Nigerian Nsukka ecotype local hens in terms of body length (BL), chest girth (CG), thigh circumference (TC), thigh length (TL), and shank length (SL) were taken and subjected to Pearson correlation analysis to obtain the relationship between these growth traits. Multiple Linear Stepwise Regression procedure was used to find the best linear combination of the linear body measurements that can best predict BW. The findings showed that linear body measurement traits of Nigerian heavy ecotype local hens were strongly (p < 0.01) and positively correlated (0.5 < r) except thigh length which recorded a moderate value (0.3 < r > 0.5). The regression equations of linear body measurement traits with BW were positive with coefficient of determination ranging from 60.5-74.6%. The stepwise analyses showed shank length as best single measurement with R2 = 0.605, while inclusion of our five predictors in an equation resulted in R2 = 0.746. Thus, the following equation was generated: BW = – 1485.70 + 82.06 SL + 58.34 BL + 38.70 TC + 8.39 CG + 3.85 TL. This showed that they accounted for 74.6% of the variations in the BW of Nigerian heavy ecotype local hens. The prediction equations generated from linear body measurement traits are positive and strong, therefore can accurately be employed to predict the relative BW of Nigerian heavy ecotype local hens during selection programs as well as in the market with the use of measuring tape.

scholarly journals Application of Linear Body Measurement for Predicting Body Weight of Swamp Buffalo

2017 ◽  
Vol 5 (1) ◽  
pp. 41-45
Author(s):  
I. Galib ◽  
◽  
C. Sumantri ◽  
A. Gunawan ◽  
◽  
...  
Keyword(s):  
Body Weight ◽  
Body Measurement ◽  
Swamp Buffalo ◽  
Linear Body

scholarly journals Heterosis and recipocal effects for growth traits in crosses of New zealand white, Dutch and chinchilla breeds of rabbit.

2021 ◽  
Vol 32 (2) ◽  
pp. 191-197
Author(s):  
S. N. Ibe ◽  
V. N. Obasi ◽  
G. S. Ojewola ◽  
E. N. Nwachukwu
Keyword(s):  
Body Weight ◽  
New Zealand ◽  
Body Length ◽  
Head Circumference ◽  
Hind Limb ◽  
Growth Traits ◽  
Body Measurement ◽  
Body Width ◽  
Linear Body

Records of body weight (BW) and linear body measurement (LBMs), namely body length (BL), body width (bwh), heart girth (hg), height-at withers (HW), shoulder-to-tail drops (ST), ear lenght (EL), head-to-shoulder (HS), lenght of fore limb (LFL), lenght of hind limb (LHL) and head circumference (HC) taken on 72 kits produced through complete dialled crosses were used to estimate heterosis and recipocal effects. The crosses involved New Zealand White (NZW), Dutch (DT) and Cchinchilla (CH) breeds of rabbit. Only NZW x DT and CH x DT crosses showed heterosis for BWs, indicating that non-additive sults for all effects of genes could be important for the LBMs were generally similar. Recipocal effect was not significant (p<0.05) for all traits. suggesting that any of the breeds may be used as sire or dam in planned crossesbreeding programmes.

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