scholarly journals Morphometric traits of turkey (Meleagris gallopavo) as affected by genotype and sex

2020 ◽  
Vol 47 (4) ◽  
pp. 1-6
Author(s):  
I. O. Dudusola ◽  
H. A. Bashiru ◽  
I. Awojimi

Morphometric traits have been found useful in quantifying body size and shape and scientific information on them would be required for genetic improvement of turkeys. This study was carried out to evaluate the effect of sex and genotype on morphometric traits of turkey (Meleagris gallopavo). Linear body measurements were taken on 70 exotic turkeys (20 males and 50 females) and 80 locally adapted turkeys (30 males and 50 females) randomly selected from the Turkey Unit at Obafemi Awolowo University Teaching and Research Farm. The linear body measurements taken and recorded were the beak length, head length, neck length, body length, keel length, wing span, wing length, drumstick, Shank length, toe length, tail length and body girth all taken in centimeters (cm) using a measuring tape. Data were analyzed with the GLM procedure of SAS and Duncan Multiple Range Test was used to detect differences among means. There were significant differences (p <0.05) between male and female turkeys with male turkeys having higher values as an expression of sexual dimorphism for all studied traits. Further, the male was found to be significantly higher (p <0.05) than the females for all the morphometric traits measured both for the local and exotic type. The exotic type was found to be significantly (p <0.05) higher than the local type for all the morphometric traits measured. There were significant (p <0.05) interactions between sex and genotype with the male exotic having higher values of all the morphometric traits observed. It was concluded that turkeys are sexually dimorphic and that exotic type had higher body conformation and morphology than their locally adapted counterpart.

2021 ◽  
Vol 3 (1) ◽  
pp. 041-046
Author(s):  
Jessie Ezekiel Udoh ◽  
Emmanuel Godwin David ◽  
Uduak Linus Unah

The study compared live weight and linear body measurements of two breeds of cattle (White Fulani and Muturu Cattle) and regressed linear body measurements on live weight. A total of eighty-six cattle of forty-three per a breed were reared at the cattle production unit of the Teaching and Research Farm, Akwa Ibom State University – Obio Akpa Campus, Nigeria in a semi intensive management system. Parameters measured were; live weight (LW), face length (FCL), head circumference (HC), ear length (EL), neck length(NL), neck circumference(NC), height at wither(HW), body length(BL), body circumference(BC), hind limb(HL), fore limb(FL), and tail length(TL). The data obtained were subjected to statistical analysis for morphometric traits and prediction was done through linear model regression method using SPSS statistical software package. Breed of cattle significantly (P>0.05) affected all linear body measurements and live weight exception of NL .Linear body Parameters of both breeds were compared. The mean live weight of White Fulani and Muturu were 251.28kg and 149.81kg, respectively. Means of FL, EL, NL, BL, HL, TL and BC, NC and HW of White Fulani were significantly (P<0.01) higher than Muturu breed but the HC of Muturu was significantly (P<0.01) higher than White Fulani breed. Muturu breed had higher R2 of 0.98 in BL and BC than White Fulani breed. In conclusion, White Fulani was considered a larger breed than Muturu cattle. Live weight can be accurately predicted from linear body measurements through BC and BL in both breeds.


Author(s):  
Sandeep Kumar ◽  
S. P. Dahiya ◽  
Z. S. Dahiya ◽  
C. S. Patil

Measurements of body conformation in sheep are of value in judging the quantitative characteristics of meat and also helpful in developing suitable selection criterion. Data on 349 Harnali sheep for body length (BL), body height (BH), heart girth (HG), paunch girth (PG), tail length (TL), head circumference (HC), ear length (EL), ear width (EW), face length (FL) and adult body weight (ABW) were analysed to study the relationship between linear body measurements and body weight. The mixed linear model with dam’s weight at lambing as covariate was used to study the effect of non-genetic factors on body measurements and body weight. High estimates of heritability were obtained for BL, BH, HG, TL, HC, EL, EW, FL and ABW while moderate estimate was obtained for PG. The phenotypic correlations of BL, BH, HG, PG, HC and FL with ABW were positive and significant (0.32±0.04 to 0.59±0.08). The genetic correlations of HG, PG, HC and FL with ABW were 0.51±0.13, 0.42±0.19, 0.44±0.13 and 0.43±0.15, respectively. Various combinations of linear type traits to predict ABW were found to have coefficient of determination as high as 0.92. It is concluded that heart girth is the most important trait for estimation of live weight in sheep and the prediction equation is Body weight = -63.72 + 1.23 HG with R2 = 0.87.


2020 ◽  
Vol 47 (3) ◽  
pp. 16-21
Author(s):  
B. I. Umoh ◽  
U. M. Okon ◽  
J. S. Ekpo

Body weight of animals in the rural areas has not been accurately ascertained due to lack of accurate measurement scales, hence this experiment. The study was conducted to determine the correlation between milk intake and body weight with linear body measurements in white Fulani calves raised in semi-intensive system of management. A total of seven (7) white Fulani calves managed semi-intensively was used for the study. The experiment lasted 12 weeks. The overall mean±SEM value for milk intake, body weight, neck circumference, neck length, body length, body circumference, girth circumference, height at wither and tail length were 1.20±0.40g, 5.18±1.02kg, 21.54±0.66cm, 13.23±0.21cm, 28.36±0.31cm, 36.41±0.43cm, 35.84±0.37cm, 35.87±0.43cm and 23.43±0.39cm respectively. There was significant (P<0.05) effect of lactation stage on all body measurements taken except for neck circumference and tail length. Correlation between all body pairs of measurements were high, positive and highly significant (P<0.05). The highest correlation was recorded for body length, body circumference, girth circumference and height at wither. Linear function provided the best fit for milk intake weight and linear body measurements indicating that body measurements can be used for selection and the estimation of body weight in the fields where accurate scales are not usually available. It is recommended that any of the body measurement parameters could be used in the estimation of the body weight. Also, an improvement of non-genetic factor such as nutrition and general husbandry of the animal as much as possible will bring about improvement in the body parameters as well as maintaining the animal's physiological balance.


2021 ◽  
Vol 38 (2) ◽  
pp. 9-17
Author(s):  
O. O. Adewumi ◽  
C. A. Chineke ◽  
J. A. Alokan ◽  
I. J. James ◽  
O. A. Akinola

One hundred and ninety two records were taken weekly for twenty four (24) weeks from West African Dwarf (WD), the Yankasa (YN) and the West African Dwarf X Yankasa crossbred (XB) sheep. The traits evaluated were milk yield (MK), linear body measurements (LB) such as height at withers, (HT), body length (BL), heart girth (HG), shoulder width (SW), Tail length (TA), Neck length (NL), Neck circumference (NC), Face length (FA), Hind leg length (HL), Foreleg length (FL), Face length (FA), Ear length (EA), Head width (HW) and Rump height (RH) together with the following Udder dimensions (UD): Udder circumference (UC), Teat length (TL) and Teat circumference (TC). There was significant (P<0.05) influence of genotype on MK, WHT, HT, BL, TA, FL, HL, FA, EA and RH. The WD ewes produced more milk than either the YN or XB enes. Average daily milk yield (ml) was 122.25, 90.88 ana 108.8. The YN genotype was superior in all LBs except SW and NC than the WD and XB in the three genotypes. Height at withers was 59.08, 69.21 and 61.81 cm; BL 48.54, 55.08 and 54.49 cm and RH 62.88, 75.11 and 68.46 cm for WD, YN and XB enes respectively. Since milk offtake is related to body weight and some linear body measurements, selection for WT, HG, SW, NL NC, UC and TL in WD ewes could lead to higher milk and mutton production.  


Author(s):  
Samarjit Das ◽  
M. F. Siddiqui ◽  
V. S. Ingle ◽  
Geetesh Mishra

A study was conducted in the breeding tract of Red Kandhari cattle in Marathwada region comprising Latur, Parbhani and Nanded district to document the morphometric characteristic to know the present status of the breed. Total 535young Red Kandhari cattle were selected morphometric measurements were recorded by using measuring tape while physical characteristic were recorded visually.The overall LSQ means at 0-3 months of Red Kandhari for chest girth, abdominal girth, body length, height at wither, height at elbow, height at hip bone, height at pin bone, length of ear, width of ear, length of face, width of fore head, length of neck, width between hook bone, width between pin bone, tail length and body weight were 70.56 ± 0.66, 72.27 ± 0.78, 64.06 ± 0.69, 69.00 ± 0.63, 42.93 ± 0.37, 69.44 ± 0.66, 65.13 ± 0.63, 13.66 ± 0.21, 7.54 ± 0.07, 23.21 ± 0.32, 11.25 ± 0.18, 25.02 ± 0.26 , 15.71 ± 0.16 , 9.08 ± 0.15, 41.66 ± 0.44 cm and 30.06 ± 0.83 kg and at 4-12 months of age were 116.21 ± 0.73, 122.86 ± 0.77, 99.89 ± 0.51, 102.32 ± 0.43, 60.49 ± 0.59, 103.71 ± 0.44, 97.51 ± 0.38, 18.38 ± 0.16, 10.28 ± 0.24, 35.55 ± 0.24, 18.11 ± 0.08, 38.50 ± 0.13, 26.43 ± 0.22, 14.83 ± 0.18, 60.90 ± 0.39 cm and 127.93 ± 2.42 kg, respectively. Majority of the Red Kandhari cattle have Brick Red coat color followed by Dark Red. The sex showed highly significant (P Lass Than 0.01) to significant (p Lass Than 0.05) effect on most of the traits for both the age group whereas district doesn’t play any major role on these traits.The significant to highly significant effect of sex on some of body measurements and non-significant effect of district in all traits may lead to the concrete conclusion that these factors play a major role in exhibiting the specific body measurements only in Red Kandhari cattle at 4-12 and 0-3 months of age.


2019 ◽  
Vol 46 (2) ◽  
pp. 22-26
Author(s):  
M. M. Shettima ◽  
N. K. Alade ◽  
A. O. Raji

This study focused on polymorphisms of haemoglobin in some indigenous ruminants. Blood samples were collected from a total of 2400 ruminants (600 cattle, 900 goats and 900 sheep) and analyzed. Body Weight (BW) and Nine linear body measurements viz: Height at withers (HW), Body length (BL), Heart girth (HG), Face length (FL), Neck length (NL), Neck width (NW), Rump width (RW), Ear length (EL), Tail length (TL) and shoulder width (SW) were measured on each animal prior to blood sample collection. The results revealed that animals with heterozygotes genotype Hb AB had higher values for body weight (313.42 kg), body length (158.23 cm), shoulder width (28.21 cm) and heart girth (150.39 cm) in cattle. In goats, individuals with Hb BB and Hb AB had similar heart girth (69.33 and 66.16 cm), body weight (21.08 and 20.92 kg), and shoulder width (10.43 and 10.23 cm), though they were better than those with Hb AA genotype. In conclusion, while Hb AA is an adaptation genotype in sheep, Hb AB is the genotype of choice for both adaptation and meat traits in cattle and goats.


PLoS ONE ◽  
2021 ◽  
Vol 16 (10) ◽  
pp. e0258761
Author(s):  
Habib Rainier Vihotogbe Whannou ◽  
Cossi Ulriche Afatondji ◽  
Maurice Cossi Ahozonlin ◽  
Martin Spanoghe ◽  
Deborah Lanterbecq ◽  
...  

Knowledge of both the genetic diversity and geographical distribution of animal genetic resources is a prerequisite for their sustainable utilization, improvement and conservation. The present study was undertaken to explore the current morphological variability within the sheep population in Benin as a prelude for their molecular characterization. From November 2018 to February 2020, 25 quantitative linear body measurements and 5 qualitative physical traits were recorded on 1240 adult ewes from the 10 phytogeographic zones that comprise the three vegetation zones of Benin. Fourteen morphological indices were calculated based on the linear body measurements. The collected data were first analyzed using multiple comparisons of least-square means (LSmeans), followed by generalized linear model (GLM) procedures, to explore the relationships among the measured morphometric traits and the 10 phytogeographic zones. Next, the presence of any genetic sub-populations was examined using multivariate analytical methods, including canonical discriminant analysis (CDA) and ascending hierarchical clustering (AHC). Univariate analyses indicated that all quantitative linear body measurements varied significantly (P<0.05) across the phytogeographic zones. The highest values (LSmean± standard error) of withers height (68.3±0.47 cm), sternum height (46.0±0.35 cm), and rump height (68.8±0.47 cm) were recorded in the Mekrou-Pendjari zone, the drier phytogeographic zone in the North, whereas the lowest values, 49.2±0.34, 25.9±0.26, and 52.0±0.35 cm, respectively, were recorded in the Pobe zone in the South. Multivariate analyses revealed the prevalence of four distinct sheep sub-populations in Benin. The sub-population from the South could be assimilated to the short-legged and that from the North to the West African long-legged sheep. The two other sub-populations were intermediate and closer to the crossbreeds or another short-legged sub-breed. The proportion of individuals correctly classified in their group of origin was approximately 74%. These results uncovered a spatial morphological variation in the Beninese sheep population along a South-North phytogeographic gradient.


2020 ◽  
Vol 4 (2) ◽  
pp. 001-006
Author(s):  
Abdul Muumin Sadick ◽  
Godson Aryee ◽  
Patrick Atta Poku Jnr ◽  
Clement Gyeabour Kyere

The study was carried out at the poultry section of the Department of Animal Science farm, University of Education Winneba (Mampong - Ashanti campus, Ghana) from July, 2018 to September, 2018. Data were collected from fifty randomly selected and tagged birds. The data were collected weekly for eight weeks., Head length (HL), Beak length (BL), Body length (BL), Wing length (WL), shank length (SL), shank circumference(SC) and height(H) were taken randomly on five birds in each replicate at a day in every two weeks using tape measure and Vernier calipers. The data collected were analyzed using simple linear regression analysis. The results from the study indicated that, all linear body measurements were significantly (P<0.01) effected for the model, intercepts and slopes of the regression lines with linear response with the best predictor of body weight indicated for shank circumference. It was concluded from the study that; linear body measurements could be used to predict the body weight of broiler chickens. It is recommended that in areas, especially rural areas, where weighing balance or scale may not be readily available, a tailor’s tape can be used to measure linear body parameters and thereafter used to estimate body weight of chickens from the predictive equation.


2020 ◽  
Vol 46 (3) ◽  
pp. 39-43
Author(s):  
A. A. Adeoye

Data on body weight and linear body measurements collected from 101 America StandardChinchilla rabbits comprised of 62 females and 39 males at eight weeks were used todetermine the effect of sex and phenotypic correlations among the growth traits. Theestimates were statistically (p<0.05) higher in the female compared with male in virtually all the traits considered except in the fore arm length. The values for body weight, body length, ear length, tail length, fore arm length, heart girth and abdominal circumference for females were 1.19 kg, 31.97 cm, 10.67 cm, 9.89 cm, 15.61 cm, 21.61 cm and 23.75 cm, respectively while the corresponding values for males were 0.88 kg, 28.00 cm, 10.44 cm, 8.95 cm, 14.74 cm, 19.62 cm and 21.67 cm. The correlation between body weight and the linear body measurements was positively significant (p<0.05 and p<0.001) and ranged between 0.301 and 0.951 in males while in females positive and significant correlations were found between body weight and body length (0.831), tail length (0.184), heart girth (0.788) and abdominal circumference (0.719). The correlations among the linear body measurements in the males ranged between 0.108 and 0.951 while in females it ranged between -0.235 and 0.681. The positive relationships between body weight and linear body measurements can be used as basis for body weight selection in both male and female rabbits


2021 ◽  
Vol 41 (1) ◽  
pp. 264-271
Author(s):  
A. J. Henry ◽  
S. N. Ibe ◽  
B. O. Asuquo

A study was conducted to investigate the relationship between linear body measurements (LBMs) and body weights of grasscutters at 2, 4 and 6 weeks of age. Simple linear correlation procedure was used to establish the strength of linear relationships and associations between the different linear body measurements with body weight. These parameters were also subjected to step-wise regression analysis. The goodness of fit (R2) was tested to determine the contribution of each independent variable measured to the prediction of the dependent variable, the body weight of grasscutters at different ages of 2, 4,6, 8, 10, 12, 14, 16, 18 and 20 weeks. One hundred and thirty-nine (139) juvenile grasscutters obtained from 24 parents comprising of 18 does and 6 bucks were used for the study. Experimental animals were raised under a mixed feeding regime throughout the experimental period of 20 weeks. The linear body measurements assessed are head length (HL), body length (BL), heart girth (HG), ear length (EL) and tail length (TL). Correlation coefficients (r) between body measurements and weights were generally positive and significant (p < 0.01) at 2 weeks, demonstrating strong relationships between variables. At 4 weeks, correlation coefficients ranged from 0.013 to 0.829 whereas at 6 weeks values ranged from -0.230 to 0.859. Coefficient of determination (R2) varied from 0.926 to 0.997, 0.965 to 0.989 and 0.930 to 0.991 at 2, 4 and 6 weeks, respectively The positive correlation coefficients observed for body length and heart girth shows that these parameters can be improved upon for grasscutters raised under intensive management. Results from this study further revealed that body weight of grasscutters can be estimated under field condition using the ear,head, body lengths and heart girth in the absence of a weighing balance.


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