scholarly journals Prediction of live body weights in dromedary camels (Camelus dromedarius) from morphometric body measurements

2020 ◽  
Vol 5 (1) ◽  
pp. 25
Author(s):  
Abdelaziz Ahmed Fadlelmoula ◽  
Abdelaziz Ahmed Fadlelmoula ◽  
Mohammed Saeed Mudarris ◽  
Mohammed Salih Hariri
Keyword(s):  
Age Groups ◽  
Dromedary Camel ◽  
Regression Equations ◽  
Body Measurements ◽  
Age Group ◽  
Third Age ◽  
Pooled Data ◽  
Live Body Weight ◽  
Body Weights ◽  
Positive Correlations

To predict the live body weight (LBW) of dromedary camel from morphometric body measurements (MBM) a regression equation was developed. A total of 223 camels (54 males and 169 females) from Makkah region of Saudi Arabia were classified into three age groups; first (<5 years old), second (5-8 years old) and third (>8 years old); two groups according to sex (male, female). LBW and 10 MBM were obtained. Data was subjected to statistical analysis. Results showed a significant (p<0.05) high mean LBW and MBM in males compared to females. A significant (p<0.05) positive correlations were encountered between LBW and HRG in all age groups, BG in third age group and males in second age group, HH and WH in first age group. The best fir regression equations were found to included HRG, BG and HG in the first and third age groups with R2 account for 90.59% and 93.82% respectively. Whereas in the second age group as well as pooled data the equation included HRG, BG, HH, HG and WH with R2 at level of 99.69% and 99.48% respectively. Multi-collinearity problem of MBM was not encountered as determined by VIF which was found to be less than 10. These formulas could be used for predicting LBW where weighing scales are not available.

scholarly journals Prediction of body weight of broilers at different ages from linear body measurements

2021 ◽  
Vol 17 ◽  
pp. 42-47
Author(s):  
F.O Adeniji ◽  
K. L. Ayorinde
Keyword(s):  
Body Weight ◽  
The Body ◽  
Regression Equations ◽  
Body Measurements ◽  
Linear Relationships ◽  
Live Body Weight ◽  
Body Weights ◽  
Males And Females ◽  
Prediction Efficiency ◽  
Linear Body

The prediction of live body weight from six body measurements was studied using the Cobb broiler strain. A total of two hundred and sixty four chicks comprising of one hundred and thirty four at males and females were used. Mean body weights day-old, 3, 6, 9, and 12 weeks of age were 36.7g, 276.16g, 856.72, 1,334.1g and 1,762g respectively for the sexes combined. Males were generally more uniform in body weight and the body measurements than the females as indicated by the lower coefficient of variability (2.53% vs 3.38% for body weight at 3 weeks of age). The males were slightly (P<0.05) heavier than the females at 9 and 12 weeks of age. Cumulative weight gain was more rapid between 3 and 6 weeks of age and decreased with age up to the 12th week. The correlations, linear and stepwise regression equations reveal linear relationships between body weight and all body measurements (Body length, Body girth, Keel length, Shank length, Drumstick length and Shank thickness). Live body weight of bird was best predicted singly using keel length at 3 and 9 weeks of age and body girth and the 12th week. However with a combination of two to four of the body measurements, the prediction efficiency was enhanced.

Body Image and Wellbeing in Religious Male and Female Youth in Israel

2018 ◽  
pp. 1497-1519
Author(s):  
Shraga Fisherman
Keyword(s):  
Body Image ◽  
Significant Interaction ◽  
Age Groups ◽  
Well Being ◽  
Age Group ◽  
Male And Female ◽  
Female Youth ◽  
Positive Correlations ◽  
Manova Analysis ◽  
The Relationship

In the current study described in this chapter, we examined the relationship between body image and well-being among religiously observant male and female youth from four age groups: 16, 17, 19, and 22. MANOVA analysis of age x gender produced a significant interaction regarding body image. Various trends were found among the two genders according to age group. Among the girls, there is a moderate rise in body image (BI) with age, whereas among the boys there is an obvious decline between 17 and 19, followed by an increase. The boys' BI scores were significantly higher than those of the girls aged 16, 17, and 19, but not for age 22. There were significant and positive correlations between BI and well-being for all age groups and both genders. There were high correlations among the girls relative to those among the boys.

Prediction of body weights of Nellore sheep under field condition

2015 ◽  
Author(s):  
M. Rani ◽  
B. Ekambaram ◽  
B. Punya Kumari
Keyword(s):  
Body Weight ◽  
Body Length ◽  
Age Groups ◽  
The Body ◽  
Coefficient Of Determination ◽  
Regression Equations ◽  
Body Weights ◽  
Chest Girth ◽  
Males And Females ◽  
Nellore Sheep

Data on 1350 Nellore sheep of 2, 4, 6 and 8-teeth age, reared under field conditions in 12 mandals of Chittoor district of Andhra Pradesh were utilized for development of prediction equations and study the phenotypic association among body measurements and body weights. The coefficients of correlation between body weight with the height at withers, chest girth, paunch girth, hip width and body length were positive and high in magnitude in both males and females in majority of the age groups studied. Step-down regression equations were fitted to predict the body weight based on biometrical measurements at different ages. The height at withers, chest girth, paunch girth, hip width and body length have contributed significantly to the expression of body weights at the majority of the ages studied. High coefficient of determination (R2) value was observed in males at 6 and 8-teeth age as 88 per cent, while in females 50 per cent at 2-teeth age.

CHARACTERIZATION AND CONSERVATION OF THE MALPURA SHEEP BREED

1995 ◽  
Vol 16 ◽  
pp. 75-82
Author(s):  
S. C. Mehta ◽  
P. K. Vij ◽  
B. K. Joshi ◽  
R. Sahai ◽  
A. E. Nivsarkar
Keyword(s):  
Body Length ◽  
Age Groups ◽  
Morphological Characteristics ◽  
Tail Length ◽  
The Body ◽  
Body Measurements ◽  
Face Width ◽  
Body Weights ◽  
Face Length ◽  
Chest Girth

SUMMARYObservations were recorded on morphological characteristics, body weights and body measurements of 344 Malpura sheep belonging to nine age groups during a survey conducted in 18 randomly selected villages of three blocks of the Chittorgarh district of Rajastha. The body weights at birth, 1, 3, 6 and 9 months and adult weight averaged 3.3, 6.7±0.88, 12.9±0.71, 16.4±0.71, 21.0±1.00 and 31.4 kg respectively. Height, body length, chest girth, paunch girth, face length, face width, tail length and ear length of adult Malpura sheep averaged 63.6, 66.8, 77.1, 80.9, 20.7, 9.8, 30.3 and 6.3 cm respectively. Sex of the animal had significant effect on weight, height, body length and chest girth at 8 teeth stage. Phenotypic correlations of body weight with height, chest girth and paunch girth ranged from 0.76±0.04 to 0.88±0.03 and regression of weight on these body measurements ranged from 0.63±0.02 to 0.98±0.05.

Pubertal changes in testicular parameters and secretion of testosterone in Najdi and Naemi ram lambs under desert conditions

2017 ◽  
Author(s):  
Ahmed A. Al-kawmani ◽  
Mansour M. Alfuraiji ◽  
Saleh A. Kandeal ◽  
Mohammad Abul Farah ◽  
Khalid Mashai Alanazi
Keyword(s):  
Age Groups ◽  
Reproductive Capacity ◽  
Chronological Age ◽  
Testis Size ◽  
Age Group ◽  
Testosterone Concentration ◽  
Body Weights ◽  
Histological Appearance ◽  
Testicular Size ◽  
Ram Lambs

The present work was conducted to elucidate the relationships between chronological age, testosterone concentration and testis size of Najdi and Naemi ram lambs under desert conditions to determine the reproductive capacity of the above two breeds. The postnatal development of the seminiferous epithelium of the testes was also monitored. A total of 90 (45 Najdi and 45 Naemi lambs) aged between one and nine months, with five lambs at each month of age for each breed were used. The results showed that the testosterone concentration increased dramatically and rapidly between five and six months, followed by a period of gradual growth where testicular size was increased from 3 to 6 months of age. There was a significant (P > 0.05) difference in testosterone concentration (TC) and testis size (TS) in ram lambs between different age groups, similarly there were significant differences between body weights and lamb age between one and nine months. A positive correlation between the increasing body weight and the size of the testicle was observed. The testicles of lambs at each age-group had a different histological appearance except those of Najdi lambs at 2, 3 and 4 months and Naemi lambs at 2, 3, 4 and 5 months, where few differences were apparent. Small quantities were of spermatozoa appeared at the eighth month of age and increased in the ninth month. In conclusion, the current findings indicate that puberty in Najdi and Naemi rams occurs at the 8th and 9th month of age, respectively.

Correlation Between Body Weight and Linear Body Measurements in Adult Female Sahiwal Cattle

2017 ◽  
Vol 12 (3) ◽  
Author(s):  
A. K. Chaturvedani ◽  
Sambhuti Shankar Sahu ◽  
S. K. Choursia ◽  
Om Prakash
Keyword(s):  
Body Weight ◽  
Body Length ◽  
Adult Female ◽  
Age Groups ◽  
Body Measurements ◽  
Cattle Breeding ◽  
Live Body Weight ◽  
Sahiwal Cattle ◽  
Sahiwal Cows ◽  
Linear Body

The present investigation was conducted in the herd of pure bred Sahiwal cows maintained at Bull Mother Experimental Farm (BMEF) and Government Cattle Breeding Farm (CBF), Anjora, Durg (Chhattisgarh). A total of 193 adult female Sahiwal cattle over three years of age were used in the experiment. The animals were grouped into seven age groups, i.e. 3-4, 4-5, 5-6, 6-7,7-8,>8 years old, and overall. Body weight was found to be significantly (P less than 0.01) and positively correlated with height at withers (r= 0.58 to 0.73), body length (r= 0.56 to 0.76) and heart girth (r= 0.57 to 0.80) in these groups. The relatively high value of coefficient of correlation between live body weight and heart girth assumed to be more significant indicator of live body weight in Sahiwal cattle.

scholarly journals Relationship between Body Weight and Linear Body Measurements in Japanese Quail (Coturnix coturnix japonica)

2013 ◽  
Vol 6 (1) ◽  
pp. 175-183 ◽  
Author(s):  
O. Victoria ◽  
T. R. Fayeye ◽  
K. Luke Ayorinde ◽  
H. Olojede
Keyword(s):  
Body Weight ◽  
Body Length ◽  
Japanese Quail ◽  
Body Weight Gain ◽  
Coefficient Of Determination ◽  
Body Measurements ◽  
Linear Measurements ◽  
Body Weights ◽  
Old Japanese ◽  
Positive Correlations

A total of 108 two-weeks-old Japanese quail chicks were used to study the relationship between body weight and linear measurements and to predict body weight from linear measurements of body length (BL), body girth (BG), wing length (WL), shank length (SL), shank diameter (SD) and drum stick (DS).The results showed that the mean quail birds’ body weights were 35.23g and 143.78g, at 2nd and 8th weeks, respectively. Body weight gain was increased between 2 and 6 weeks of age and thereafter decreased with advancing age. Female birds were significantly (P< 0.05) heavier than those of male counterpart at 6th and 8th weeks of age. Significantly positive correlations (P<0.01) were obtained between body weight and body measurements at 2nd, 4th and 8th weeks. The best correlation was obtained between body weight and body girth at the 2nd week of age (0.70). The estimates of coefficient of determination and predictive equations show that body weight in Japanese quail is linearly related to body measurements especially with body girth and body length. The study shows that it is possible for breeders to use BG and BL as criteria for assessment and early selection of Japanese quail for body weight.  Keywords: Japanese quail; Body weight; Linear measurements; Correlation  © 2014 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.  doi: http://dx.doi.org/10.3329/jsr.v6i1.16368 J. Sci. Res. 6 (1), 175-183 (2014)  

scholarly journals Biometrical Relationship between Body Weight and Body Measurements of Black Bengal Goat (BBG)

2019 ◽  
pp. 1-7
Author(s):  
Md. Ahsan Habib ◽  
Ambia Akhtar ◽  
A. K. Fazlul Haque Bhuiyan ◽  
Md. Panir Choudhury ◽  
Most Farhana Afroz
Keyword(s):  
Body Weight ◽  
Correlation Coefficient ◽  
Body Length ◽  
Live Weight ◽  
Regression Equation ◽  
Baseline Survey ◽  
Regression Equations ◽  
Body Measurements ◽  
Body Weights ◽  
Chest Girth

Aims: To develop regression equations for estimation of live weight from the external morphological measurements. Study Design: CRD with non-orthogonal hierarchy. Place and Duration of Study: This study was carried out at 3 rural village communities of Bhaluka Upazila in Mymensingh district of Bangladesh from 2009 to 2013. Methodology: All animals were ear-tagged and maintained under semi-intensive management system with scheduled vaccination and de-worming. Data were collected from a baseline survey along with 3 progressive generations produced from the community foundation stocks. Body length, chest girth, wither height, hip height and body weights were measured in a same day and recorded individually from birth up to 15 month age. Body weights were measured in kilogram by a hanging spring balance and other morphological parameters were measured in centimeter by a measuring tape. The data were analyzed by "SPSS 17.0" statistical program. Results: A total of seven regression models were adopted and analysis of variance showed that all models were fitted significantly (p<0.001). The correlation coefficient was higher when multiple body measurements were included in the model. The study also revealed that when chest girth as a single body measurement was included in the model gave the highest correlation coefficient (R=0.92). For including multiple measurements, body length and chest girth are the best external body measures which exposed same correlation coefficient (R2=0.92) when included more than these two body measures in the model. The differences between actual body weight and body weight predicted from regression equation for different ages were less than 1% (p>0.05) and correlation coefficient between weights was 0.92 (p<0.01). Conclusion: There are strong correlations among morphometric body measurements. Thus, body weight can be estimated from a single or multiple body measurements by regression equation. Chest girth is the best single predictor for estimating live body weight with high accuracy.

scholarly journals The distance of the main and auxiliary openings from the top of medial and distal root of the first lower permanent molar

2005 ◽  
Vol 52 (3) ◽  
pp. 143-151
Author(s):  
Milica Jovanovic-Medojevic ◽  
Slavoljub Zivkovic
Keyword(s):  
Average Distance ◽  
Age Groups ◽  
Morphological Characteristics ◽  
Maximum Distance ◽  
Age Group ◽  
Third Age ◽  
The Third ◽  
Permanent Molar ◽  
Permanent Molars ◽  
The One

The main prerequisite for a successful treatment of pulp disease in apex periodontium is knowledge of morphological characteristics of root canal system, especially one third of his apex. The aim of this work was to define the exact distance of the main and auxiliary openings from the top of medial and distal roots of the first lower permanent molars. Methods: as a research material it was used a hundred extracted first lower molars of the patients of both gender, divided into three age groups. The analysis of the one third of apex was done with the help of binocular magnifying glass and digital roentgenography analysis half of the samples, which were filed with capillary contrast. Results: The results obtained showed that the longest average distance of the main opening from the top of medial root was 0.84mm, and the shortest was 0.61mm; while for the distal root the longest average distance was 0.89mm, and the shortest was 0.62mm. Maximum distance of the auxiliary openings from the top of medial root in the first group was 3.5mm, and the maximum distance of the auxiliary openings from the top of distal root was 2, 5 mm. The results obtained with digital rentgenography showed that the longest average distance of the main opening from the top of medial root was the one noticed in the second age group (0.91mm) then the one from the first group (0,83), and the shortest one in the third age group (0,71mm); as for the distal root: the longest average distance of the main opening from the top of the root was noticed in the third age group (0,95mm) then in the first (0,90mm) and than shortest in the second age group (0,89mm). Conclusion: The distance of the main and auxiliary openings from the top of medial and distal root of the first lower molar varies in the range from 0 to 3,5mm and it depends on the tooth age. .

scholarly journals Principal component analysis of the conformation traits of Yankasa sheep

2013 ◽  
Vol 29 (1) ◽  
pp. 65-74 ◽  
Author(s):  
A. Yakubu
Keyword(s):  
Body Height ◽  
Age Groups ◽  
Principal Component ◽  
Tail Length ◽  
The Body ◽  
Head Width ◽  
Principal Component Factor Analysis ◽  
Body Measurements ◽  
Age Group ◽  
Leg Length

This study was preformed to evaluate the biometric traits of 227 Yankasa sheep in northern Nigeria under a multivariate approach. The body measurements taken were: withers height, rump height, body length, heart girth, tail length, face length, shoulder width, head width, rump width, ear length, foreleg length, hind leg length and rump length. The animals were divided into two age groups: <15.5 and 15.5 - 28.3 months old, respectively. General linear model was used to study age group effect while principal component factor analysis was performed to define body shape upon the correlation matrix of the thirteen body measurements. Age group significantly (P<0.05) affected the morphological characters except ear length. Pearson?s coefficients of correlation were positive and significant in both age groups. In <15.5 months old sheep, four principal components (factors) were extracted (ratio of variance = 89.27). The first factor accounted for 73.03% of the total variance and was interpreted as a measure of general size. The second factor which explained 7.61% of the generalized variance tended to describe flesh dimensions (shoulder width and rump width), while the third factor had its loadings for tail length and ear length. The fourth factor was influenced by head width. In 15.5-28.3 months old sheep, three factors (ratio of variance=75.21) were identified. These seven extracted factors could be considered in breeding programmes to improve body conformation of sheep since variation in meat traits was not associated with body height.

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