scholarly journals In vivo prediction of live weight and carcass traits using body measurements in indigenous guinea fowl

2011 ◽  
Vol 27 (4) ◽  
pp. 1827-1836 ◽  
Author(s):  
D.M. Ogah
Keyword(s):  
Body Weight ◽  
Carcass Traits ◽  
Live Weight ◽  
Guinea Fowl ◽  
Chest Circumference ◽  
Carcass Weight ◽  
Meat Production ◽  
Body Measurements ◽  
Weight Prediction ◽  
Breast Weight

The objectives of this study were to evaluate the relationship between live measurements and carcass traits, and develop linear regression models to predict live weight and set of carcass traits in an indigenous guinea fowl. Twenty eight adult indigenous birds of both sexes were used for the study. Live weight and body measurements were obtained before slaughter while carcass traits were taken on hot carcass. Result obtained from descriptive statistics showed that, mean performance were 1208?6.86 g, 22.17?0.13 cm, 8.94?0.07 cm, 2.96?0.03 cm, 34.23?0.19 cm, 850.15?7.18 g, 267.23?1.69 g, 72.39?0.64 g and 70.38% for body weight, body length, thigh length, keel length, chest circumference, carcass weight, breast weight, thigh weight and dressing percentage. All the traits except for keel length were positively (P<0.001) correlated to body weight. Chest circumference had the highest predictive power in live weight estimate (R2 .558), while body weight stand out as the single most important variable in carcass weight and breast weight prediction (R2 .820 and .902) This suggest that that carcass weight and breast weight prediction can best be obtained using body weight, providing direction in developing model for selection and improvement of guinea fowl for meat production.

scholarly journals In vivo prediction of live weight and carcass traits using body measurements in indigenous guinea fowl

2012 ◽  
Vol 28 (1) ◽  
pp. 137-146
Author(s):  
D.M. Ogah
Keyword(s):  
Body Weight ◽  
Carcass Traits ◽  
Live Weight ◽  
Guinea Fowl ◽  
Chest Circumference ◽  
Carcass Weight ◽  
Meat Production ◽  
Body Measurements ◽  
Weight Prediction ◽  
Breast Weight

The objectives of this study were to evaluate the relationship between live measurements and carcass traits, and develop linear regression models to predict live weight and set of carcass traits in an indigenous guinea fowl. Twenty eight adult indigenous birds of both sexes were used for the study. Live weight and body measurements were obtained before slaughter while carcass traits were taken on hot carcass. Result obtained from descriptive statistics showed that, mean performance were 1208?6.86g, 22.17?0.13 cm, 8.94?0.07cm, 2.96?0.03cm, 34.23?0.19cm, 850.15?7.18g, 267.23?1.69g, 72.39?0.64g and 70.38% for body weight, body length, thigh length, keel length, chest circumference, carcass weight, breast weight, thigh weight and dressing percentage. All the traits except for keel length were positively (P<0.001) correlated to body weight. Chest circumference had the highest predictive power in live weight estimate (R2.558), while body weight stand out as the single most important variable in carcass weight and breast weight prediction (R2.820 and .902) This suggest that carcass weight and breast weight prediction can best be obtained using body weight, providing direction in developing model for selection and improvement of guinea fowl for meat production.

scholarly journals Influence of Crossbreeding of Ghezel Ram With Grey Shirazi Ewe on Growth Performance, Feed Efficiency and Carcass Traits of Fattening Lambs

2021 ◽  
Author(s):  
Abdolhamid Karimi ◽  
Mohammad Javad Abarghuei ◽  
Alidad Boostani
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Feed Efficiency ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Live Weight ◽  
Carcass Weight ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Group 12

Abstract In this investigation, performance, feed efficiency and carcass traits of 48 weaned crossbred Grey Shirazi × Ghezel and purbred Grey Shirazi fattening lambs (mean live weight, 28.5 ± 0.5 kg and age, 115 ± 5 days) were evaluated. Lambs were divided into 4 groups contain the GM group (12 purebred male lambs of Grey Shirazi ewe × Grey Shirazi ram), the GF group (12 purebred female lambs of Grey Shirazi ewe × Grey Shirazi ram), the CM group (12 crossbred male lambs of Grey Shirazi ewe × Ghezel ram) and the CF group (12 crossbred female lambs of Grey Shirazi ewe × Ghezel ram). The dry matter intakes (DMI), average daily gain (ADG) and carcass traits in the lambs were determined. The DMI was greater in CF lambs compared to GF lambs (P < 0.001). Feed conversion ratio (FCR) was higher in male lambs comparing to female lambs (P = 0.001). The final body weight, ADG, live weight at the slaughtering and hot carcass weight (HCW) were lower in GF lambs compared to another lambs (P < 0.001, P = 0.003). Cold carcass weight (CCW) in CM lambs was higher than in other groups. The Longissimus dorsi (LD) area was higher in crossbreed male lambs (P = 0.001). Crossbreeding improved grow performance (final body weight and ADG) in male and female lambs. Carcass trait was improved by crossbreeding especially in male lambs. Sex effect on growth performance and carcass traits was noticeable and male lambs had superior growth.

scholarly journals Effect of Testosterone Enanthate Injection on Some Carcass Traits and Chemical Characteristics of Castrated Karadi Lambs Meat

2017 ◽  
Vol 30 (1) ◽  
pp. 38-45
Author(s):  
Ayad B. Mahmood ◽  
Ahmed S.A. Al-Obaidi
Keyword(s):  
Body Weight ◽  
Carcass Traits ◽  
Live Weight ◽  
Carcass Weight ◽  
Barley Straw ◽  
Chemical Characteristics ◽  
Research Station ◽  
Testosterone Enanthate ◽  
Positive Effects ◽  
Carcass Cuts

This study was conducted to investigate the effect of testosterone enanthate injection on some carcass traits and chemical characteristics of Karadi castrated lambs meat. Twenty seven male Karadi lambs (3-4 months of age) with an average live weight of (28.7±3.8 kg) were reared in sheep farm, research station, Faculty of Agriculture Sciences, University of Sulaimania and allocated randomly by weight to three groups (treatments) by the dosage of testosterone enanthate (6 lambs for each treatment): G1 were not injected (control), G2 were injected by 200 mg and G3 were injected by 400 mg (IM weekly). All groups animals were fed with the same concentrate diet (3% of body weight), barley straw provided ad libitum and water was free, all group lambs were castrated by rubber band two weeks before experiment begins. There were three periods of slaughter: 60 days from the beginning of the experiment, 90 days and 120 days, at the end of each period three lambs from each treatment were randomly chosen and weighted, then humanly slaughtered. Many measurements were taken such as hot and cold carcass weight, carcass length, carcass thorax circumference, rib eye area and fat thickness ,carcass cuts weight, non-carcass adipose tissue weight, edible organs and offal weight, also the chemical composition of Longissimus Dorsi muscle meat. From the results, it could be concluded that there were positive effects of testosterone enanthate injection, which was increasing of living body weight reflecting on hot and cold carcass weight increase with increasing age and period of treating with enanthate, that increase in carcass weight was related with increasing in weight of whole carcass cuts which was clearly noticed on second and third slaughtering period, and also that increase can be correlated with rib eye area which increase during the same periods , that means the gain in weight is a result of body lean gain due to testosterone enanthate injection. In addition, fat tail weight decrease may be explain as body energy turned to producing or synthesis lean instead of fat.

scholarly journals Hubungan Ukuran Tubuh dengan Bobot Badan dan Bobot Karkas Bandikut (Echymipera rufescens) Di Kampung Manawi Distrik Angkaisera Kabupaten Kepulauan Yapen

2021 ◽  
Vol 11 (3) ◽  
pp. 195
Author(s):  
Sonei G. Bonai ◽  
Frandz Pawere ◽  
Hanike Monim
Keyword(s):  
Body Weight ◽  
Live Weight ◽  
Carcass Weight ◽  
Regression Equations ◽  
Body Measurements ◽  
Alternative Source ◽  
Average Percentage ◽  
Males And Females ◽  
The Relationship ◽  
Average Body

Abstract Bandicoot  (Echypera rufescens)  is an alternative source of animal protein and a source of germplasm for humans, especially local communities in Papua. These animals are obtained by hunting and/or setting traps in the community's closest habitat.  The aim of this research was to determine the relationship between body measurements and body weight and carcass weight by utilizing 32 bandicoots, 16 males and 16 females, with a live weight range of 400 - 2000 grams in Yapen Island Regency, Papua. The study was conducted by using an explorative study and the data were analyzed using multiple correlations and regression. The carcass was obtained by slaughtering the head, removing the blood, and then removing the hair by burning (singeing). The average body weight of male bandicoots was 1403 grams and that of females was 598.75 grams, while the average carcass weights of males and females were 1050.06 grams and 415 grams, respectively. The average heart girth of male bandicoots is 23.03 cm and that of females is 17.81 cm, while the average body length of male and female bandicoots is 25.19 cm and 18.91 cm, respectively. The average percentage of male bandicoot carcasses was 73.99 cm and that of females was 69.22 cm. The correlation coefficient between body weight and body measurements was 0.911 while the carcass weight and body measurements were 0.901. The correlation between body weight and carcass of male bandicoots were 0.911 and 0.901. The correlation between body weight and carcass of female bandicoot were 0.702 and 0.747. The regression equation for male bandicoots to estimate body weight (BB) and carcass weight (BK) were BB = (-1705, 594+84,432 X1 +46,234X2) and (BK = -432,092 +71,545 X1 +33,127X2). The female bandicoot regression equations to estimate body weight (BB) and carcass weight (BK) were: (BB = -509,134+39,437 X1 +21,443X2) and (BK= -436,703 +31,720 X1 +15,164X2). Keywords: Bandicut (Echypera rufescens); Carcass length; Carcass weight; Carcass; Heart girth; Live weight; Singeing   Abstrak Bandikut (Echypera rufescens) merupakan  salah satu sumber alternatif protein hewani dan sumber plasma nutfa bagi manusia khususnya masyarakat lokal yang berada di Papua. Hewan ini diperoleh dengan cara berburu dan/atau  pemasangan jerat di habitat terdekat masyarakat. Penelitian tentang hewan ini bertujuan untuk mengetahui hubungan antara ukuran-ukuran  tubuh dengan  bobot badan dan bobot karkas dengan memanfaatkan  32 ekor bandikut masing-masing 16 ekor jantan dan 16 ekor betina dengan kisaran berat hidup 400 -  2000 gram.  Karkas diperoleh dengan cara bagian kepala disembelih, dikeluarkan darah kemudian dilakukan penghilangan bulu dengan cara dibakar (singeing). Karkas terdiri dari daging, tulang dan lemak setelah kepala, isi rongga dada dan perut, kaki belakang bagian bawah dan kaki depan bagian bawah serta ekor dikeluarkan. Rata-rata bobot badan bandikut jantan adalah 1403 gram dan betina adalah 598,75 gram, sedangkan rata-rata bobot karkas jantan dan betina masing-masing adalah 1050,06  gram dan 415 gram. Rata-rata lingkar dada bandikut  jantan adalah 23,03 cm dan betina adalah 17,81 cm, sedangkan rata-rata panjang badan bandikut jantan dan betina berturut-turut adalah 25,19 cm dan 18,91 cm. Rata-rata persentase karkas bandikut jantan adalah 73,99 cm dan betina adalah  69,22 cm. Koefisien korelasi antara bobot badan  dengan ukuran-ukuran tubuh adalah 0,911 sedangkan antara bobot karkas dengan ukuran-ukuran tubuh adalah 0,901. Korelasi bobot badan dan karkas bandikut jantan adalah  0,911 dan  0.901. Korelasi bobot badan dan karkas bandikut betina adalah sebesar 0,702 dan 0,747. Persamaan regresi bandikut jantan untuk menduga bobot badan (BB) dan bobot karkas (BK) adalah BB = (-1705, 594+84,432 X1 +46,234X2 dan BK = -432,092 +71,545 X1 +33,127X2. Persamaan regresi bandikut betina untuk menduga bobot badan (BB) dan bobot karkas (BK) adalah BB = -509,134+39,437 X1 +21,443X2 dan BK= -436,703 +31,720 X1 +15,164X2. Kata kunci: Bandicut (Echypera rufescens); Berat karkas; Berat potong; Karkas; Lingkar dada; Panjang karkas.

scholarly journals Body Weight Prediction in Nigeria Goats using Body Measurements of Different Age, Sex and Breeds

2017 ◽  
pp. 01-05
Author(s):  
A.J. Shoyombo ◽  
A. A. Musa ◽  
M. Wheto
Keyword(s):  
Body Weight ◽  
Predictive Power ◽  
Regression Coefficient ◽  
Live Weight ◽  
Tail Length ◽  
Body Measurements ◽  
Stepwise Multiple Linear Regression ◽  
Weight Changes ◽  
Scrotal Circumference ◽  
Weight Prediction

Data collected from 900 goats sampled from Borno, Sokoto and Ogun States from three different breeds on the following metric characters: Body Weight (BW), Age, Horn Length (HL), Ear length (EL), Shoulder width (SW), Neck circumference (NC), body length (BL), Withers Height (WH), Heart Girth (HG), Pouch Girth (PG), Tail Length (TL) and Scrotal circumference (SC) were subjected to stepwise multiple linear regression. Results obtained showed Live weight changes with body measurements were poorly to highly predictable with R2 values ranging between 0.000 - 0.031 in animals < 1 year old, 0.000-0.241in animals 1-2 years and 0.000-0.658 in animals 2 years and above. It was thus concluded that the low, moderate and high predictive power obtained from this study might be due to instability of regression coefficient at different ages and points also to decreasing environmental impact on growth with increase in age.

scholarly journals Canonical correlation analysis of body measurements and carcass traits of cross bred rabbit population

2012 ◽  
Vol 28 (4) ◽  
pp. 855-861 ◽  
Author(s):  
D.M. Ogah
Keyword(s):  
Correlation Analysis ◽  
Body Length ◽  
Canonical Correlation Analysis ◽  
Canonical Correlation ◽  
Carcass Traits ◽  
Carcass Weight ◽  
Body Measurements ◽  
Slaughter Weight ◽  
Dressing Percentage ◽  
Criterion Variables

In this study, canonical correlation analysis was applied to estimate the relationship between body measurements and carcass traits of 28 male cross bred rabbits of about 12 weeks of age, reared under semi intensive system. Four body measurements, pre-slaughter weight (PSW) , body length (BL), chest circumference (CC), and ear length (EL) as predictor variable while dressing percentage ( DP) , hot carcass weight (HCW) and cold carcass weight (CCW) as criterion variables. Pre-slaughter weight and body length had significant (P<0.001) simple correlation coefficients with the carcass traits except for dressing percentage. The three canonical variate pairs ranged between .99 to .42 and only the first pair was significant (P<0.001). From the analysis pre-slaughter weight and body length can be regarded as the main factors as live measurement traits, while dressing percentage did not have pronounced effect on the emerged criterion variables.

Carcass Traits and Meat Quality Characteristics of Malabari Male Kids Reared under Different Production System

2020 ◽  
Author(s):  
Chikkagoudara Kotresh Prasad ◽  
John Abraham ◽  
Balusami Chinnappan ◽  
Roshin Anie Jose ◽  
Senthil Murugan ◽  
...  
Keyword(s):  
Body Weight ◽  
Meat Quality ◽  
Production System ◽  
Carcass Traits ◽  
Live Weight ◽  
Quality Characteristics ◽  
Cooking Loss ◽  
Body Parts ◽  
Final Body Weight ◽  
The Impact

Background: The intensive rearing systems of goats needs dietary formulations that will meet animal requirements, mainly the protein and energy to allow optimum growth rate. Alternative systems to attain 15-20 kg body weight by three months of age with better meat quality is need of the hour. Broiler goat production system is most suitable system of rearing for meat goat production. The current study was conducted to examine the impact of broiler goat production system on the carcass traits and meat quality characteristics of Malabari male kids. Methods: Fourteen pre-weaned kids were randomly allotted to two treatments. Treatment-I (T1) kids were allowed to suckle thrice a day during four weeks and twice in a day during consequent weeks. Whereas in Treatment-II (T2), kids were reared intensively by providing finely ground concentrate feed mixed with equal quantity of rice gruel from a feeding bottle after 7 days of colostrum feeding from the mother. The animals were slaughtered at an age of three months and the final body weight, carcass traits like dressing percentage, weight of different body parts and meat quality parameters like pH, color, cooking loss and shear force were analysed. The proximate composition and sensory evaluation was performed. Result: Broiler goat production system could produce significantly (P less than 0.01) higher final average body weight compared to natural system. All the carcass traits were significantly (P less than 0.01) higher in T2. The broiler goat production system could double the net live weight during the same period compared to natural suckling system with higher dressing % and the chevon produced was tender with less cooking loss. Hence, this system can be recommended for chevon production in shorter period with higher dressing % and lesser cooking loss in Malabari male kids.

Effect of docking and shearing on growth and carcass traits of fat-tailed Ossimi sheep

1987 ◽  
Vol 109 (3) ◽  
pp. 513-518 ◽  
Author(s):  
I. F. M. Marai ◽  
M. S. Nowar ◽  
Layla B. Bahgat ◽  
J. B. Owen
Keyword(s):  
Weight Gain ◽  
Carcass Traits ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Small Sample ◽  
Body Measurements ◽  
Final Phase ◽  
Chest Girth ◽  
Group Basis ◽  
Daily Gain

SummaryThirty Ossimi lambs were used in an experiment to compare those whose tail was docked shortly after birth with controls. After weaning at 4 months of age the groups were further subdivided and two of the four groups closely shorn according to a 2 × 2 factorial design.Male lambs at 20 kg were subjected to intensive finishing until the age of 50 weeks and nine were then slaughtered to determine carcass characteristics.There was a trend for increased live-weight gain in the docked lambs in the preweaning stage (up to 16 weeks).This trend was also present, although not statistically significant, in the final phase of intensive feeding from 20 kg weight to 50 weeks. Shearing significantly improved daily gain in this final period (P < 0·05). These increases in gain were also apparently associated with improvements in efficiency, as judged on a group basis.Docking and shearing also tended to cause increases in body measurements: height, chest girth and abdomen girth in the case of docking (P < 0·05) and chest girth, chest depth and abdomen girth in the case of shearing (P < 0–05).Carcass characteristics, measured on a relatively small sample, indicated several effects of docking and shearing on carcass traits although most of these were consistent with the expected differences stemming from the higher carcass weights acheived at 50 weeks of age by docked and sheared lambs.

scholarly journals Feed efficiency and carcass metrics in growing cattle1

2019 ◽  
Vol 97 (11) ◽  
pp. 4405-4417 ◽  
Author(s):  
David N Kelly ◽  
Craig Murphy ◽  
Roy D Sleator ◽  
Michelle M Judge ◽  
Stephen B Conroy ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Production Efficiency ◽  
Carcass Traits ◽  
Genetic Correlations ◽  
Live Weight ◽  
Residual Energy ◽  
Feedlot Cattle ◽  
Carcass Weight ◽  
Research Perspective ◽  
Dressing Percentage

Abstract Some definitions of feed efficiency such as residual energy intake (REI) and residual gain (RG) may not truly reflect production efficiency. The energy sinks used in the derivation of the traits include metabolic live-weight; producers finishing cattle for slaughter are, however, paid on the basis of carcass weight, as opposed to live-weight. The objective of the present study was to explore alternative definitions of REI and RG which are more reflective of production efficiency, and quantify their relationship with performance, ultrasound, and carcass traits across multiple breeds and sexes of cattle. Feed intake and live-weight records were available on 5,172 growing animals, 2,187 of which also had information relating to carcass traits; all animals were fed a concentrate-based diet representative of a feedlot diet. Animal linear mixed models were used to estimate (co)variance components. Heritability estimates for all derived REI traits varied from 0.36 (REICWF; REI using carcass weight and carcass fat as energy sinks) to 0.50 (traditional REI derived with the energy sinks of both live-weight and ADG). The heritability for the RG traits varied from 0.24 to 0.34. Phenotypic correlations among all definitions of the REI traits ranged from 0.90 (REI with REICWF) to 0.99 (traditional REI with REI using metabolic preslaughter live-weight and ADG). All were different (P < 0.001) from one suggesting reranking of animals when using different definitions of REI to identify efficient cattle. The derived RG traits were either weakly or not correlated (P > 0.05) with the ultrasound and carcass traits. Genetic correlations between the REI traits with carcass weight, dressing difference (i.e., live-weight immediately preslaughter minus carcass weight) and dressing percentage (i.e., carcass weight divided by live-weight immediately preslaughter) implies that selection on any of the REI traits will increase carcass weight, lower the dressing difference and increase dressing percentage. Selection on REICW (REI using carcass weight as an energy sink), as opposed to traditional REI, should increase the carcass weight 2.2 times slower but reduce the dressing difference 4.3 times faster. While traditionally defined REI is informative from a research perspective, the ability to convert energy into live-weight gain does not necessarily equate to carcass gain, and as such, traits such as REICW and REICWF provide a better description of production efficiency for feedlot cattle.

Prediction of body weight from linear body measurements in sheep

2017 ◽  
Author(s):  
Sandeep Kumar ◽  
S. P. Dahiya ◽  
Z. S. Dahiya ◽  
C. S. Patil
Keyword(s):  
Body Weight ◽  
Genetic Correlations ◽  
Body Height ◽  
Selection Criterion ◽  
Live Weight ◽  
Tail Length ◽  
Coefficient Of Determination ◽  
Body Measurements ◽  
Linear Type ◽  
Linear Body

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.

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