Effect of sex, polydactylism and rearing system on carcass parameters of Fulani- ecotype chickens in Southwestern Nigeria

2020 ◽  
Vol 47 (3) ◽  
pp. 7-15
Author(s):  
G. O. Nweke-Okorocha ◽  
C. A. Chineke

This experiment was conducted to determine the effect of sex, Polydactylism and rearing system on carcass parameters of Fulani-ecotype chickens. Thirty chickens (15 males and 15 females) were randomly selected at 16 weeks old for carcass evaluation from population of the intensively (deep litter and cage system of management) kept Fulani eco-type chicken and were used for determining carcass characteristics such as Live weight, dressed weight, eviscerated weight, breast weight, Proventriculus weight, gizzard weight, liver weight, lung weight, spleen weight, bile weight, pancreas weight, heart weight, wing weight, shank weight, drumstick weight, thigh weight, head weight, neck weight, back weight. Data generated from the carcass parameters were subjected to least squares means using SAS 9.2 version 2008. Result showed that sex and polydactyly were significantly different (p<0.05) on all the carcass parameters measured except the organs. Birds kept in deep litter system had higher least squares means values than ones in cage system of management. This study revealed the effect of sex, polydactylism and rearing system on various carcass characteristics of Fulani ecotype chickens.

Author(s):  
Shailesh Kumar Gupta ◽  
Kumaresh Behera ◽  
C. R. Pradhan ◽  
Aditya Prasad Acharya ◽  
Kamdev Sethy ◽  
...  

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.


Author(s):  
B. E. Ditle ◽  
J. W. Ng’ambi ◽  
D. Norris ◽  
O. J. Alabi

A study was conducted to determine the growth performance and carcass characteristics of indigenous Venda chickens fed a grower’s diet supplemented with varying levels of garlic meal. The study was based on four diets containing similar energy but different garlic meal supplementation levels of 0, 10, 15 and 25 g/kg DM. At 50 to 91 days, all the growth and carcass parameters measured were improved (P less than 0.05) by garlic meal supplementation. Feed intake, growth rate, feed conversion ratio, live weight, carcass weight, dressing percent, breast meat, thigh, drumstick, gizzard and fat pad weights of Venda chickens were optimized at different garlic meal supplementation levels of 14.7, 15.8, 8.0, 16.4, 14.2, 12.7, 11.2, 12.7, 8.2, 10.5 and 15.1, respectively. These findings have implications on ration formulation for indigenous Venda chickens. Thus, it was concluded that garlic meal supplementation improved feed intake, growth rate, live weight and carcass weight of Venda chickens.


1984 ◽  
Vol 64 (1) ◽  
pp. 9-19 ◽  
Author(s):  
R. M. McKAY ◽  
W. E. REMPEL ◽  
S. G. CORNELIUS ◽  
C. E. ALLEN

Two hundred and forty-nine pigs representing all possible two-breed crosses of Minnesota no. 1 (M), Pietrain (P), and Yorkshire (Y) breeds were slaughtered over five developmental stages (35 days of age, 22.5 kg, 45.0 kg, 67.5 kg, and 90 kg liveweight). The objectives were to determine how reciprocal differences and heterosis were affected by advancing maturity, to examine breed differences, and to determine growth curves for certain visceral measurements. Reciprocal differences were observed to show two distinct patterns. The first was characterized by an increase in magnitude relative to stage of development and the second was parabolic. Statistically significant heterosis estimates for these traits were the exception rather than the rule. The following breed differences were found: M > P > Y for large intestine length and leaf fat weight, (M = Y) > P for liver weight, P > Y > M for spleen weight, M > (P = Y) for kidney weight, M > Y > P for stomach weight and M > (P = Y) for small intestine wet weight. The growth curves for the viscera indicated that the intestinal tracts were the first to complete their growth, the internal organs grew relatively slower than liveweight increased, and the majority of leaf fat deposition occurred as the animals approached 90 kg live-weight. Key words: Reciprocal differences, heterosis, breed differences, viscera, growth curves, pigs


Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 488
Author(s):  
Aurora Cittadini ◽  
María V. Sarriés ◽  
Rubén Domínguez ◽  
Gregorio Indurain ◽  
José M. Lorenzo

This research was conducted to study the effect of breed, Jaca Navarra (JN) vs. Burguete (BU), and finishing diet, conventional concentrate—diet 1 vs. silage and organic feed diet 2—on growth parameters and carcass characteristics from forty-six foals. Parameters as live weight (LW), average daily gain (ADG), body condition score (BCS), and fat depots were monitoring. In addition, the carcass parameters assessed were: carcass weight (CW), conformation, degree of fatness, morphology, and pH. Moreover, hindquarters of the left-half carcasses were sectioned in the main commercial primal cuts of leg. Results showed a clear “breed effect” in favor of BU foals, recording the highest productive values and carcass traits compared with JN foals. On the other hand, finishing diet contributed to improving the productive and carcass features of JN foals. In particular, diet 1 showed to affect positively the features analyzed compared with diet 2. Nevertheless, the meat primal cuts resulted in being unaffected by the breed and diet effects (except for knuckle), obtaining similar values among the groups of animals.


2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Abdullahi A. U. ◽  
Aliyu S. ◽  
Fauziyya I. ◽  
Bello A. ◽  
Jafaru Y.

A study was carried out to evaluate growth performance and carcass characteristics of broiler birds fed with varying level of choline inclusion in their diets; T1 (control), T2 (10g/10kg) and T3 (20g/10kg). A total of 225 marshall broiler chicks were randomly divided into three (3) treatment group of 75 birds each. Each group was divided into five (5) replicates of fifteen (15) birds each laid in a completely randomized design. Feed and water was supplied ad-libitum and the experiment lasted for 49 days. The total feed intake (1316.75-14442.18) (24437.13-31999.76) for starter and finisher respectively, body weight gain (6227.30-8241.20) (10956.64-14182.96) for starter and finisher respectively, feed conversion ratio (1.73-2.26) (2.21-2.48) for starter and finisher respectively. Many (thigh, wings, back) of the carcass parameters measured were not significantly (p>0.05) affected by the treatments but significant difference (p<0.05) was observed in drum stick, breast and neck.  However, significant difference (p<0.05) was also observed in gizzard, liver and bile, heart, lungs, legs and head. There was significant difference (p<0.05) in primal cuts per live weight, primal cuts per dressed weight, organs per live weight and organs per dressed weight. In view of the results obtained, it can be concluded that treatment two (10g/10kg) performed better in terms of total body weight (TBW) and feed conversion ratio (FCR). Also in the carcass characteristics, treatment two performed better in terms of breast yield, drumstick, percentage of primal cuts from live weight (P/LW) and percentage of primal cuts from dressed weight.


2022 ◽  
Vol 8 (3) ◽  
pp. 311-319
Author(s):  
Md Ruknuzzaman ◽  
Maftuhatul Jannat ◽  
Kazi Md Al Noman ◽  
Md Abdur Rahman ◽  
Himangsu Sarker

To investigate the effect of graded level of acetic acid on the production performance and carcass characteristics of broiler, present study was conducted for a period of 35 days in a controlled shed. A total of 240 Cobb 500 day old broiler chicks were divided into four dietary treatment groups (T0, T1, T2 and T3), each group with three replications and each replication having 20 birds. Control group (T0) birds were fed with the basal diet without any acetic acid. Birds of T1, T2 and T3 group were treated with 0.1%, 0.2% and 0.3% acetic acid in drinking water, respectively along with basal diets. Recorded data were analysed in SPSS software by using ANOVA and significance level was considered as 5%. Results showed that, acetic acid has significantly (P<0.05) improved live weight, live weight gain, feed conversion ratio (FCR) and some meat characteristics (carcass weight, thigh weight and breast weight) of experimental broilers. However, there were no significant (P>0.05) differences were observed between control group and acetic acid treated groups of birds in terms of feed intake, dressing percentage, liver weight, heart weight and abdominal fat. Net profit was higher in birds treated with acetic acid than the control group and the best performances were observed in the birds treated with 0.3% acetic acid. Res. Agric., Livest. Fish.8(3): 311-319, December 2021


1955 ◽  
Vol 33 (4) ◽  
pp. 517-522
Author(s):  
D. S. Layne ◽  
R. H. Common

Sexually immature pullets were treated for 10 days with testosterone propionate (TST) in doses of hormone ranging from 0.25 to 5.0 mgm. per day. TST increased live weight gains, the effect being significant for the highest dosage; TST also increased oviduct weight. Both these results are in agreement with those of previous workers. TST did not affect significantly the net liver weight or the liver weight per kgm. live weight. Liver deoxyribonucleic acid phosphorus (DNAP) per kgm. live weight was not affected by lower dosage levels, but was slightly and significantly increased by higher dosage levels. Liver pentose nucleic acid phosphorus (RNAP) was affected in the same way as liver DNAP; and hence TST had no effect on the ratio RNAP/DNAP in the liver. TST depressed kidney weight, thus confirming previous observations. TST also depressed kidney DNAP and increased kidney RNAP, thereby increasing the ratio RNAP/DNAP in kidney to a marked extent. Spleen weight was depressed by TST, though the effect did not attain statistical significance.


2021 ◽  
Vol 51 (2) ◽  
pp. 231-240
Author(s):  
E.G. Silva ◽  
G.G.L. Araújo ◽  
T.M. Barros e Silva ◽  
G.C. Gois ◽  
E.M. Santos ◽  
...  

The aim of the study was to evaluate the carcass characteristics, proximate composition, and sensorial attributes of meat from sheep fed diets in which buffelgrass silage replaced corn silage. Thirty-two intact male crossbred Santa Inês sheep with an average live weight of 20.09 ± 2.0 kg were housed in individual stalls and allotted at random to four treatments in which corn silage was replaced by buffelgrass silage at the levels of 0 (control), 33.3%, 66.6%, and 100%. After an adaption period of 10 days, the sheep were fed for an additional 61 days. Feed was offered ad libitum and corn silage comprised 60% of the diet for the control group. Carcass characteristics, non-carcass components and meat quality were evaluated. Hot carcass yield, cold carcass yield, true carcass yield, trimmings, fat weight, and mesenteric and omental fat weight were highest for the control group (P <0.05). Loin eye area had a quadratic response (P =0.02), with the largest areas being observed in animals fed the diet containing 66.6% buffelgrass silage. Liver weight (P <0.01), luminosity of the meat (P <0.05), and cooking loss (P <0.05) likewise had nonlinear responses to the concentration of buffelgrass silage in the diet. The treatments did not have significant negative influence on the nutritional and organoleptic characteristics of the meat.


Animals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1056 ◽  
Author(s):  
Abd Ur Rehman ◽  
Muhammad Arif ◽  
Muhammad M. Husnain ◽  
Mahmoud Alagawany ◽  
Mohamed E. Abd El-Hack ◽  
...  

The objective of this work was to evaluate the utilization of methionine from DL-methionine (DL-Met) and L-methionine (L-Met) with different levels of dietary methionine plus cystine (Met + Cyst) in broilers. The experimental diets were formulated by using three levels of Met + Cyst, i.e., 74%, 77% and 80% of digestible lysine. Met + Cyst was provided either from DL-Met or L-Met. A total of 450 day-old broilers were divided into six groups (five replicates of 15 birds each) in a 3 × 2 factorial arrangement under completely randomized design. Weight gain (WG), feed intake (FI) and feed conversion ratio (FCR) was determined. At the end of the experiment (35 days), two birds from each replicate were slaughtered to determine carcass characteristics and serum homocysteine. Results indicate that the combined effect of L-Met and DL-Met significantly affected (p < 0.05) the WG in the starter period and FI in the finisher period. Neither source nor level of methionine influenced (p > 0.05) the FI, WG and FCR of broilers during the starter, finisher or overall phase of growth. The interaction between sources and levels of methionine did not influence (p > 0.05) the feed intake, weight gain and FCR during the overall phase of growth. Source of methionine had no (p > 0.05) effect on carcass characteristics. Methionine levels had a significant effect (p < 0.05) on carcass weight, chest weight and thigh weight. The interaction between sources and levels of methionine had a significant (p < 0.05) effect on the liver weight. The sources of methionine had significant (p < 0.05) effects on the liver and heart weight, while methionine levels significantly influenced (p < 0.05) the liver and gizzard weight. Finally, it was concluded that if DL-Met and L-Met are included in feed at a standard level, they are equally effective as a source of methionine for broilers.


2016 ◽  
Vol 5 (3) ◽  
pp. 24
Author(s):  
NWORGU Friday Chima

<p>The performance and carcass characteristics of Growing Pullets (GP) fed basil leaf (<em>Ocimum gratissimum)</em> (OG) supplement was studied for 8 weeks using eighty-four 13 weeks old Nera Black GP. The birds were maintained on growers diet supplemented with 4 levels of basil leaves supplement(BLS) (0, 5, 10 and 15g/bird) for treatments A, B, C and D, respectively at 3 days interval throughout the period of experiment. Each treatment was replicated thrice with seven birds per replicate in a completely randomized block design. Treatment A served as control. The birds were fed the same growers diet. Feed and water were served <em>ad-libitum</em>. Data were subjected to Analysis of Variance (ANOVA) and comparisons made using Duncan’s Multiple Range Test. The results of the experiment showed a significant (p&lt;0.05) treatment effects in total feed intake, feed conversion ratio (FRC) and number of eggs laid, final live weight (FLW) and mean body weight gain (MBWG). Similar scenario was observed in dressed, breast, thigh, plucked weights and egg follicle formation. Birds in control had the highest total feed intake (TFI) (6671.55 g) and MBWG (523.84 g) compared to other treatments (B, C and D) whose values were 6644.27, 6640.29 and 6152.67 g for TFI and 483.34, 500.00 and 445.24 g for MBWG, respectively. The cost of feed consumed was best on birds fed 15gBLS (N353.04/bird) while the highest number of eggs laid was recorded in birds served 5 g(83) and 15gBLS (77) with reference to control (57). Birds served 5-15g BLS had increased liver weight (26.01, 25.01 and 27.42 g) compared to control (24.38 g), while those fed 15gBLS had reduced dressed weight (DW) (952.50 g). The best egg follicle formation was recorded on those served 5g BLS/bird. There was progressive reduction in MBWG, TFI and egg follicle with increasing weight of OG, unlike FRC and liver weight, which increased linearly. Therefore, the GP are recommended to be served 5-15gBLS/bird and later reduced to 5gBLS/bird at 3 days interval when the GP had come up to 15-20% in lay, in order to minimize further loss in weight and to improve egg follicle formation.</p>


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