scholarly journals Effects of Feeding Distillers Dried Grains with Solubles (DDGS) with or without Enzymes on Carcass Characteristics of Indigenous Chicken

2020 ◽  
pp. 127-136
Author(s):  
Ashim Kumar Saikia ◽  
Robin Bhuyan ◽  
Bibeka Nanda Saikia ◽  
Jog Dev Mahanta ◽  
Subhalakshi Borah ◽  
...  
Keyword(s):  
Carcass Traits ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Basal Diet ◽  
Chemical Compositions ◽  
Breast Meat ◽  
Indigenous Chicken ◽  
Organoleptic Evaluation ◽  
Treatment Groups ◽  
Dressing Percentage

Aims: The present investigation aimed at assessing the effects of feeding graded levels of DDGS with or without enzymes on the carcass characteristics of indigenous chicken. Study Design:  The experiment was conducted in a Completely Randomized Design (CRD). Place and Duration of Study: Department of Animal Nutrition, College of Veterinary Science, Guwahati-22, Assam for a period of 182 d (13 fortnights) between January 2018 and June 2018. Methodology: A total of 180 21 d old indigenous chicks were divided into six groups: T1, T2, T3, T4, T5 and T6 each with 30 chicks. The birds of T1, T3 and T5 were fed a basal diet containing 0, 10 and 20 per cent DDGS while the birds in T2, T4 and T6 were fed the same basal diet as that of T1, T3 and T5, respectively, but were additionally supplemented with a commercial exogenous multi-enzyme preparation. The feeding trial was conducted for a period of 182 d (13 fortnights) excluding a metabolic trial for a period of 8 days. At the end of the experiment, four birds from each treatment group were randomly selected, slaughtered and processed and different carcass traits viz. live weight, dressing percentage, relative weights of breast, thigh, drumsticks, liver, heart, gizzard, giblets, head and shank in relation to pre-slaughtered live weights were recorded. The chemical composition and organoleptic evaluation of meat samples from different treatment groups were also conducted. Results: The percent dressing and eviscerated yields of experimental birds under different treatment groups were ranged from 66.81±0.37 to 67.68±0.41 and 71.74±0.54 to 73.35±0.34, respectively. No significant (P ≥ .05) differences were observed in respect of relative weights of various carcass traits in relation to the live body weights, the chemical compositions of breast meat comprising of moisture, crude protein, ether extract and total ash and the mean scores for organoleptic evaluation comprising of colour, tenderness, flavor, juiciness and overall acceptance of the breast meat of experimental birds from different treatment groups. Conclusion: It is concluded that DDGS can be incorporated at 20% level in the rations of indigenous chicken for the economic gain without any adverse effect on dressing percentage as well as various carcass traits and organoleptic qualities.

PERFORMANCE AND CARCASS CHARACTERISTICS OF FINISHING BROILERS FED DIETS SUPPLEMENTED WITH COMBINATION OF PROBIOTICS (B. cereus) AND PREBIOTICS (MANNOSE [MOS])

2020 ◽  
Vol 19 (1) ◽  
pp. 186-194
Author(s):  
O. O. ONI ◽  
R. M. ADEBAYO ◽  
A. J. AKINDELE
Keyword(s):  
Carcass Characteristics ◽  
Live Weight ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Treatment Groups ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Dressing Percentage ◽  
Dietary Treatments ◽  
Positive Effect

The experiment aimed to investigate effect of combination of probiotics and prebiotics on the performance and carcass characteristics of broilers at finishing phase. A total number of 300 day-old Anak broiler chicks were used to determine the response of broiler chicks to diets supplemented with probiotics (Bacillus cereus) and prebiotics (Mannose). The chicks were randomly allotted to four treatment groups of 75 birds with 25 birds per replicate in a completely randomized design. The four dietary treatments comprised 500ppm MOS; 250ppm B. cereus + 500ppm MOS; 500ppm B. cereus + 500ppm MOS and 750ppm B. cereus + 500ppm MOS, respectively. Results showed that feed conversion ratio decreased significantly (P< 0.05) from 1.21 for groups fed det supplemented with 250ppm B. cereus + 500ppm MOS to 1.05 for groups fed with 750ppm B. cereus + 500ppm MOS  as more prebiotics were added to the probiotics. Final live weight, eviscerated weight and dressing percentage were significantly (p<0.05) influenced by combination of probiotics and prebiotics in finishing broilers. Final live weight values ranged from 2453.30g in birds fed 250ppm B. cereus + 500ppm MOS  to 2488.30g in birds fed 750ppm B. cereus  + 500ppm MOS, while eviscerated weight ranged from 1063.30g at 500ppm MOS to 1396.70g  at 750ppm B. cereus + 500ppm MOS. The same trend was observed for dressing percentage, neck, whole gizzard and liver. It was concluded that combination of probitics and prebiotics at 750ppm B. cereus + 500ppm MOS had positive effect on growth performance and carcass qualities of broilers at finishing phase.  

Effect of maternal administration of salbutamol to sows on post-natal growth and carcass characteristics in the progeny

1994 ◽  
Vol 45 (2) ◽  
pp. 271 ◽  
Author(s):  
YS Kim ◽  
RD Sainz ◽  
J Ferlazzo ◽  
NM Tulloh
Keyword(s):  
Body Weight ◽  
Carcass Characteristics ◽  
Type I ◽  
Drip Loss ◽  
Semitendinosus Muscle ◽  
Muscle Weight ◽  
Treatment Groups ◽  
Protein Mass ◽  
Dressing Percentage ◽  
Maternal Administration

The effects of salbutamol administration to pregnant sows on post-natal growth and carcass characteristics of the progeny were investigated. Salbutamol (4 mg/kg diet) was fed to sows during the first (0 to 38 days, TI), second (39 to 78 days, T2) or third (79 days to term, T3) trimester of pregnancy. At birth, maternal administration of salbutamol had no effect on body weight, dressing percentage or weights of liver, heart, semimembranosus and semitendinosus muscle in proportion to body weight in the progeny. No significant effects of maternal treatment with salbutamol on body weight, dressing percentage, semitendinosus muscle weight in proportion to body weight and loin eye area were observed in the progeny at 21 days. P2 fat depth at 21 days was greater (P < 0-05) in TI than in controls. The percentage of type I fibres in the deep portion of semitendinosus muscle was higher (P < 0.05) in treatment groups as compared with controls: 27.4, 42.8, 36.9 and 36.0% in control, TI, T2 and T3 respectively. At slaughter (90 kg), carcass and meat parameters including length, P2 fat depth, meat colour and drip loss were not affected by maternal administration of salbutamol. However, loin eye areas were larger in T1 than in controls. Larger loin eye areas, coupled with numerically (but not statistically) significant heavier carcasses and lower backfats, resulted in greater estimates of carcass protein mass in TI pigs as compared with controls (P = 0.06).

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 Growth performance of local and genetically improved chicken of Bangladesh

2018 ◽  
Vol 47 (2) ◽  
pp. 76-84
Author(s):  
A Akhter ◽  
SC Das ◽  
MS Hasan ◽  
T Akter ◽  
M Sultana ◽  
...  
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Growth Parameters ◽  
Live Weight ◽  
Feed Consumption ◽  
Breast Meat ◽  
Indigenous Chicken ◽  
Free Range ◽  
Growing Period ◽  
Genetically Improved

The experiment was conducted to compare the growth performance among four genotypes of indigenous chicken namely Non-descriptive Native (ND), genetically Improved Native (IN), Hilly (HC) and Naked Neck (NN) of Bangladesh under free-range rearing system.  A total of 288 day old chicks (DOC) from four genotypes were divided into four treatments having eight replications of each for a period of 12 weeks under free-range system with supplementation of commercial broiler diet. During first 4 weeks, all chicks were kept together, whereas chicks of ND was brooded in the same room but separated by a partition. At 5 weeks of age chicks were randomly distributed to the selected farmers. Growth parameters were recorded to determine the comparative growth performance among four genotypes of chicken. The highest body weight (1110.76 g/bird) was achieved by HC, followed by IN (900.63 g/bird) and NN (831.13 g/bird) at 12 weeks of age. The lowest body weight (734.13 g/bird) however was found in ND chicken. During the growing period under free range rearing (5-12 weeks), HC group consumed the highest amount of feed (2697.02 g/bird) with an average FCR of 3.06 while the lowest feed consumption (2666.13 g/bird) with the highest FCR of 4.90 was observed in ND. IN consumed (2674.63 g/bird) feed with an average FCR of 3.92 and BLRI improved NN consumed (2668.13 g/bird) feed with an average FCR of 4.19. Live weight gains in all the four genotypes of indigenous chicken were changed almost in a similar pattern. Significant differences were observed in live weight, dressing percentage, breast meat, drumstick, thigh meat among the four genotypes of chicken. The HC was superior to other genotypes of indigenous chicken including ND in terms of growth performance, meat yield characteristics and net returns. Bang. J. Anim. Sci. 2018. 47 (2):76-84

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.

Meat production from pigs which have farrowed. 2. Carcass characteristics

1975 ◽  
Vol 20 (1) ◽  
pp. 123-131 ◽  
Author(s):  
P. H. Brooks ◽  
D. J. A. Cole ◽  
W. J. N. Jennings
Keyword(s):  
Young Adult ◽  
Meat Quality ◽  
Adult Female ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Control Group ◽  
Meat Production ◽  
Large White ◽  
Treatment Groups ◽  
Significant Difference

SUMMARYThe carcass characteristics of young adult female pigs (gilts) slaughtered after weaning their first litters have been investigated using three groups of 19 Landrace × (Landrace×Large White) gilts. In two treatment groups gilts were mated at their pubertal oestrus and suckled their piglets for 5 to 11 and 35 to 42 days respectively. These gilts were slaughtered on average 10 days after weaning. A third control group consisted of unmated gilts slaughtered at 118 kg live weight.There was no significant difference in the killing-out percentage for the three groups. The carcasses of the gilts which farrowed contained significantly less fat (P<0·001) than those of the unmated controls. The carcasses of the farrowed gilts had significantly lighter middle sections (P<0·001) and significantly heavier shoulders (P<0·001) than the controls.Despite the variations in tissue yield and distribution, the yield of prime joints for the gilts which had farrowed was only 0·62 percentage units less than that of the controls.No commercially significant variations between groups in meat quality were observed.

Carcass and meat quality characteristics of South African indigenous chickens

2016 ◽  
Author(s):  
Ramokone Motsepe ◽  
Monnye Mabelebele ◽  
David Norris ◽  
David Brown ◽  
Jones Ngambi ◽  
...  
Keyword(s):  
Meat Quality ◽  
Carcass Traits ◽  
Quality Characteristics ◽  
Chicken Breast ◽  
Breast Meat ◽  
Indigenous Chicken ◽  
Male And Female ◽  
Indigenous Chickens ◽  
Commercial Grower ◽  
Colour Parameters

The present study was performed to determine the carcass and meat quality characteristics of male and female Ovambo and Potchefstroom koekoek (PK) indigenous chickens. A total of 320 male and female day old Ovambo and PK were randomly assigned to a 2 (breed) × 2 (sex) factorial arrangement in a completely randomised design. The chickens were raised from day-old and fed on a commercial grower diet containing 11.5 MJ/ME kg DM and 20 % crude protein until 18 weeks of age. Carcass traits of the Ovambo and PK were similar; however, male chickens had higher carcass traits than their female counterparts. Breed, sex and time interactions influenced colour parameters of thigh and drumstick meat except redness (a*) and yellowness (b*) values of chicken breast meat. The pH varied significantly amongst the breeds, sex and time period. The sensory evaluations of the chicken breeds were observed to be similar. However, tenderness of the breast meat as measured by shear force was higher for PK than Ovambo chickens. Fatty acid profiles of the chickens were not affected by breed or sex. The ratios of n-6 and n-3 fatty acids were significantly lower in both breeds which are desirable in reducing the risk of many diseases. Ovambo and PK chickens showed good meat quality traits. This information can assist in promoting production of indigenous chicken lines in South Africa.

Effect of yeast based mannan oligosaccharide (Actigen™) supplementation on growth, carcass characteristics and physiological response in broiler chickens

2018 ◽  
Author(s):  
M. Waqas ◽  
S. Mehmood ◽  
A. Mahmud ◽  
Saima . ◽  
J. Hussain ◽  
...  
Keyword(s):  
Antibody Response ◽  
Broiler Chickens ◽  
Control Diet ◽  
Carcass Traits ◽  
Carcass Characteristics ◽  
Mannan Oligosaccharide ◽  
Treatment Groups ◽  
Blood Biochemical ◽  
Randomized Design ◽  
Completely Randomized Design

The effect of a prebiotic mannan oligosaccharides (Actigen™) supplementation for 35 days was analyzed on growth, carcass traits and blood physiology of broilers. A total of 360-day-old broilers distributed under completely randomized design into four treatment groups with 24 replicates of 15 birds each was fed with Actigen™ supplemented diets @ 0.2, 0.4 and 0.6 g/Kg and a control diet. Data for growth performance were collected weekly while slaughtering data at 35th day. Results showed that the birds fed with Actigen™ added diet @ 0.6 g/Kg exhibited improved livability% (98.88±1.11), feed intake (3391.68±38.70 g), body weight (2157.66±31.52 g), weight gain (2111.49±30.89 g), FCR (1.57±0.03), dressing% (72.28±0.40), breast yield% (29.58±0.05), thigh yield% (31.61±0.30) and blood biochemical parameters. Superior (P£0.05) antibody response against ND and IB were recorded in birds exposed to Actigen™ supplemented diet @ 0.6 g/Kg. It was concluded that Actigen™ supplementation @ 0.6 g/Kg corroborated to improve growth, carcass traits, blood biochemistry and antibody response in broilers.

Comparison of Fattening, Slaughtering and Carcass Characteristics of Different Genotype Lambs Grown in Turkey

2020 ◽  
Author(s):  
Engin Yaralı
Keyword(s):  
Weight Gain ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Carcass Yield ◽  
Live Weight Gain ◽  
Fattening Performance ◽  
Animal Material ◽  
Dressing Percentage ◽  
Fattening Period

In this study, it was aimed to determine the fattening performance, slaughter and carcass characteristics of lambs of Eþme Kývýrcýðý (EKIV), Bursa Kývýrcýðý (BKIV), Çine Çaparý (CC) and Karya (KAR) sheeps. A total of 37 male lambs at the age of 3.5 months formed the animal material. Fattening period is 56 days. During slaughtering, head, feet, skin, liver, hot carcass weights were determined and hot carcass yield was calculated. Each carcass was cut out into 7 parts. The overall average of daily weight gain was 144.82 g. While the highest daily live weight gain was observed in the KAR, the CC had the lowest value. The total share of the rump, shoulders, back and arms are 57.65%, 66.85%, 65.80% and 67.12% for CC, EKIV, KAR and BKIV, respectively. The effect of the genotype on all the characteristics other than cooling loss is important. In terms of dressing percentage value, the ranking was CC, BKIV, KAR and EKIV from the highest to the lowest.

Influence of stocking density on the performance, carcass characteristics,hemato-biochemical indices of Vanaraja chickens

2016 ◽  
Author(s):  
Shailesh Kumar Gupta ◽  
Kumaresh Behera ◽  
C. R. Pradhan ◽  
Aditya Prasad Acharya ◽  
Kamdev Sethy ◽  
...  
Keyword(s):  
Stocking Density ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Blood Cholesterol ◽  
Feed Consumption ◽  
Heart Weight ◽  
Feed Conversion ◽  
Hematological Indices ◽  
Significant Difference ◽  
Dressing Percentage

A total 90 Vanaraja experimental birds were divided into three respective groups based on floor density viz., G1 (16 birds/m2), G2 (12 birds/m2) and G3 (8 birds/m2). No significant difference in average live weight and carcass weight was observed between groups. Average feed consumption, feed conversion ratio (FCR) and dressing percentage in G2 and G3 was significantly (P<0.05) higher as compared to G1. There were no significant effect (P>0.05) of stocking density in the carcass characteristics except the heart weight. There were non significant differences among groups for total protein, albumin, globulin and A:G ratio. Blood glucose was significantly (P>0.05) higher in group G1 as compared to G2 and G3. Blood cholesterol level increased with increase in stocking density but not significantly. Blood parameters eosinophil, monocyte, basophil counts and H:L ratio were not affected by the stocking density. Hb concentration increased non-significantly with increased stocking density. Vanaraja birds from 8 birds/m2 to 12 birds/m2 give the better growth performance, FCR and dressing percentage without change in blood biochemical and hematological indices.

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