scholarly journals Production performance and carcass quality of coloured broilers differentiated genetic potential for growth

2013 ◽  
Vol 29 (4) ◽  
pp. 615-624
Author(s):  
Z. Skrbic ◽  
Z. Pavlovski ◽  
M. Lukic ◽  
V. Petricevic ◽  
D. Milic
Keyword(s):  
Body Weight ◽  
The Body ◽  
Production Performance ◽  
Carcass Quality ◽  
Food Utilization ◽  
Poultry House ◽  
Naked Neck ◽  
Free Range ◽  
Genetic Potential

The study was conducted with the purpose of the comparative analysis of production performance and carcass quality of two coloured broiler genotypes of differentiated genetic potential for growth (Redbro and Redbro Naked Neck) in conditions of intensive feeding, as well as determining the effect of housing system (free range and poultry house) on fattening performance of Redbro broilers. Production performance is presented in the two control periods (days 42 and 84). Carcass quality was analysed at 84 days old broilers based on carcass conformation, yield, share of valuable parts and abdominal fat content. Redbro and Redbro Naked Neck broilers had different growth intensity according to the phases of the experiment, but at the age of 84 days, their body weight did not differ significantly (3382.44g to 3236.0g). Lower efficiency of food utilization (3.08 kg to 2.79 kg) and improved vitality (100 % vs. 97.33 %) was found in Redbro Naked Neck broilers. In terms of carcass quality, there were no significant differences except in the share of wings. The positive impact of growing Redbro broilers in the poultry house was determined on the body weight (p< 0.05), feed efficiency and broiler mortality, which resulted in higher production index (169.83 vs. 140.37) compared to free range reared Redbro chickens. The differences in carcass quality were determined on the basis of better conformation, a small share of the wings but also lower yields of classically dressed carcasses of broilers Redbro reared in the poultry house.

scholarly journals Phenotypic diversity and carcass quality of creole goats with genetic potential for resistance to infection caused by worm

2018 ◽  
Vol 53 (7) ◽  
pp. 849-857
Author(s):  
Vanessa dos Santos Neri ◽  
José Lindenberg Rocha Sarmento ◽  
Laylson da Silva Borges ◽  
Tatiana Saraiva Torres ◽  
Luciano Silva Sena ◽  
...  
Keyword(s):  
Body Weight ◽  
Phenotypic Diversity ◽  
Phenotypic Characterization ◽  
Carcass Quality ◽  
Breeding Programs ◽  
Genetic Groups ◽  
Genetic Potential ◽  
Resistance To Infection

Abstract: The objective of this work was to phenotypically characterize creole goats of the Moxotó, Azul, Canindé, Repartida, Marota, and Graúna breeds, comparing them with the Boer, Anglo Nubian, and Alpine exotic breeds, to identify the genetic groups of greater potential for carcass quality and resistance to infection caused by worm. Data on morphometric measurements were obtained for the count of worm eggs in grams of feces (WEGF), Famacha score, carcass measurements, and body weight from 308 animals, in a farm in the state of Piauí, Brazil. Repartida goats showed the highest average for wither height (61.55 cm) and rump height (62.16 cm), and Moxotó goats had the greatest ear length (13.45 cm). The Moxotó breed showed the highest means for carcass and body weight. The lowest average for body weight was observed in Azul goats (24.35 kg), and the lowest WEGF was detected in Repartida goats (200 eggs per gram of feces). The average Famacha score was 2.77. Average linkage was the method that best summarized the information on the morphometric and carcass data. The use of morphometric and carcass measurements provides satisfactory results in the phenotypic characterization of the animals. The Brazilian creole goats, which are considered resistant to worm infection and show high-quality carcass traits, may be indicated for conservation and genetic breeding programs.

scholarly journals The Effect of Corn Substitution with Palm Kernel Meal Treated by Enzyme on Production Performance and Carcass Quality of Broiler

2018 ◽  
Vol 42 (2) ◽  
Author(s):  
Muhammad Halim Natsir ◽  
Irfan Djunaidi ◽  
Osfar Sjofjan ◽  
Antonius Suwanto ◽  
Esti Puspitasari ◽  
...  
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Palm Kernel ◽  
Abdominal Fat ◽  
Production Performance ◽  
Carcass Quality ◽  
Significant Difference ◽  
Kernel Meal ◽  
Palm Kernel Meal

The research was aimed to evaluate the effects of substitution level of corn with palm kernel meal (PKM) untreated and palm kernel meal (PKM) treated by enzyme on production performance and carcass quality of broilers. The method used in this research was experiment using nested of completely randomized design with 2 factors, the main factor was type of palm kernel meal factors consisting of PKM without enzyme (B1) and PKM by mannanase enzyme (B2), and substitution corn level L0 (without substitution), L1 (12.5%), L2 (25%), L3 (37.5%) and L4 (50%). The different among the treatments were tested by Duncan’s multiple range test. The results showed that corn substitution with PKM untreated and PKM treated by enzymes was significantly effect (P<0.01) on feed conversion ratio (FCR), tenderness, meat cholesterol of broilers and income over feed cost (IOFC) and significant effect (P<0.05) on feed intake, but there is no significant difference on body weight, percentages of abdominal fat and water holding capacity (WHC). Furthermore, effect of level corn substitition with PKM nested to PKM untreated and PKM treated by enzyme was significantly effect (P<0.01) on feed intake, body weight, FCR, and tenderness and significant effect (P<0.05) on IOFC, but there is no effect on percentages of abdominal fat, WHC and meat cholesterol. It can be concluded that the corn substitution with PKM treated by enzymes was better than the PKM untreated on production performance and carcass quality of broilers. The optimal level of PKM untreated as corn substitution was 12.5%. While replacement with PKM treated by enzyme can be used up to 25%.

scholarly journals Productivity and Egg Quality of Two Commercial Layer Hybrids Kept in Free-Range System

2018 ◽  
Vol 6 (10) ◽  
pp. 1444
Author(s):  
Muhittin Tutkun ◽  
Muzaffer Denli ◽  
Ramazan Demirel
Keyword(s):  
Feed Intake ◽  
Feed Efficiency ◽  
Laying Hens ◽  
Egg Quality ◽  
Stocking Density ◽  
Quality Parameters ◽  
Production Performance ◽  
Poultry House ◽  
Free Range

The purpose of this study was to compare the performance and egg quality parameters of two layer hybrids (Lohmann Brown and Atak-S) which were reared in free-range system. The experiment was carried out with a total of 300 laying hens. From 18 to 50 weeks of age Lohmann Brown (LB) and Atak-S (AS) were housed in two groups of 150 hens in a poultry house with a stocking density of 7 hens/m2. The 2 trial groups were formed from 10 repetitions each consisting of 15 hens. At the 20, 30, 40 and 50 weeks of ages, the production performance and egg quality parameters were evaluated. Mean daily feed intake and feed efficiency through the trial were 111.2 g vs 124.3 g, and 2.46 vs 2.58 respectively for LB and AS hybrids (P

scholarly journals 4. Quality of Poultry Meat from Native Chicken Breeds – A Review

2016 ◽  
Vol 16 (2) ◽  
pp. 347-368 ◽  
Author(s):  
Zofia Sokołowicz ◽  
Józefa Krawczyk ◽  
Sylwester Świątkiewicz
Keyword(s):  
Body Weight ◽  
Farming System ◽  
Egg Laying ◽  
The Body ◽  
Poultry Meat ◽  
Meat Production ◽  
Free Range ◽  
Housing Systems ◽  
Native Breed

Abstract The objective of the paper was to demonstrate the possibilities of using Polish native breeds of chickens for the production of meat for its specific quality features in the light of worldwide researches. The object of the analysis was the quality of meat from slow-growing chickens raised in varied housing systems, including capons and poulards. The findings of studies on the quality of poultry meat from native breeds obtained from post-production cockerels and from hens in their post egg-laying stage have shown that there are chances for their use in meat production. Native breed hens can also be used as foundation material for the production of capons, poulards or international mixed breeds for purposes of extensive farming. The body weight of native breed hens, including their muscle build depend on the bird’s genotype, feeding, length of exploitation and farming system. Meat from native breed hens, raised in free-range systems has less fat, but with higher polyunsaturated fatty acids in their meat muscles as well as a healthier ratio of n-6/n-3 PUFA acids. Outdoor free-range access influences the meat colour, i.e., bright coloured breast muscle (L*) as well as increased intensity of red coloration of leg muscles (b*). Caponisation of hens enhances intensified body weight gains along with increased fattening of meat. In comparison with cockerel meat, the meat of capons is more juicy, tender and of better taste, while poulard meat has distinctively favourable sensory values in comparison with broiler chicken meat.

scholarly journals Comparative performances of hilly chicken and naked neck hilly chicken at Naikhongchari hilly areas of Bangladesh

2016 ◽  
Vol 2 (2) ◽  
pp. 348-351
Author(s):  
Md Azharul Islam Talukder ◽  
Md Ashadul Alam ◽  
Md Moklesur Rahman ◽  
Md Abu Hemayet ◽  
Md Asadul Islam
Keyword(s):  
Body Weight ◽  
Egg Production ◽  
The Body ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Egg Weight ◽  
Poultry House ◽  
Naked Neck ◽  
Native Chicken ◽  
Body Weights

A total of 115 hilly chickens (92 female and 23 males) and 35 naked neck hilly Chickens (28 females and 7 males) were reared in open sided poultry house for 10 months period to compare their productive and reproductive performances. The mean body weights of adult female and male hilly birds and naked neck hilly birds were 2244, 2005 and 2664, 2576 g respectively. The age at first egg of both type of birds were 147 and 159 days respectively and hen-day egg production were 27±1.4 and 35±3.3 respectively. The average egg weight was 41±4 and 38±3.6 g respectively. Both type of bird per day average feed consumption were 97.61±11 and 102±22 g and mortality were 15.56±3.7 and 11.42±2.7 percent respectively. The average hatchability percentage performed by 14 broody hens reared on litter floor was 67.5±10 and 57±22 percent respectively. The average hatching egg weight and chick weight were 47.28±3, 41.48±1 and 31.4±3, 29.6±4 g respectively. The body weight of growing hilly bird and Naked Neck hilly bird after eleven weeks of age were 727.3±17.4 and 645±97.6g, respectively and Feed conversion ratios (FCR) were 3.39 and 3.34 respectively. It was concluded that Hilly chicken improved by body weight than previous year and both feathered and Naked Neck Hilly chicken given an indication of meat type native chicken and required to reproduce to have large stock for undertaking conservation and further improvement programme.Asian J. Med. Biol. Res. June 2016, 2(2): 348-351

scholarly journals Body Weight Gain and Carcass Quality of the Hybrid Chicken Derived from the Crossing between Female F1 Kampung Super and Male F1 Kampung-Broiler

2021 ◽  
Vol 6 (2) ◽  
pp. 60934
Author(s):  
Utin Elsya Puspita ◽  
Hendry T.S.S.G. Saragih ◽  
Tety Hartatik ◽  
Budi Setiadi Daryono
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Body Weight Gain ◽  
The Body ◽  
Chicken Breast ◽  
Carcass Quality ◽  
Potential Alternative ◽  
Quality Measurements ◽  
Meat Type

This research was conducted to observe the body weight gain and carcass quality of the hybrid chicken derived from the crossing between female F1 Kampung Super and male F1 Kampung-Broiler. The weekly weight gain for seven weeks and carcass quality, including breast yield, protein content, lipid content, moisture, and pH were measured with each group consists of six individuals. The chickens were slaughtered for meat quality measurements on the 7th week. The results showed that the hybrid chickens’ weight at the 7th week (888.22±139.63) was higher than layer (467.06±85.7) and pelung (436.39±42.33). The hybrid chicken’s breast yield (3.20%) was significantly higher than pelung’s (1.66%). These characteristics of hybrid chicken breast muscle lead to the conclusion that hybrid chicken is a potential alternative meat-type chicken with local chicken meat characteristics and has relatively fast growth.

scholarly journals Haematological parameters in relation to age, sex and body weight of free-range village chickens (Gallus gallus domesticus) in Maiduguri, Nigeria

2021 ◽  
pp. 78-84
Keyword(s):  
Body Weight ◽  
Haemoglobin Concentration ◽  
The Body ◽  
Haematological Parameters ◽  
Jugular Veins ◽  
Important Indicator ◽  
Free Range ◽  
Body Weights ◽  
Leukocyte Counts ◽  
Apparently Healthy

The haematology of animals including chickens is an important indicator of their health status. It is therefore considered a useful tool in clinical diagnosis. The aim of this study was to investigate the haematological parameters of apparently healthy free range domesticated chickens as influenced by their sex, age and body weights. Blood samples taken from the jugular veins were analysed using standard haematological protocols. PCV, haemoglobin concentration, TRBC, TWBC, differential leukocyte counts, erythrocytes indices (MCV, MCHC and MCH) were measured. The study showed that there were no significant (P>0.05) age-dependent variation in all the measured haematological parameters. However, sex had effect on PCV, TRBC and heterophil count. Male chickens had higher PCV value of (34.4%) and TRBC value of (2.4 × 1012/L) as compared to female chickens with PCV value of (30.5%) and TRBC value of (2.1 × 1012/L). On the other hand, female chickens had higher mean heterophil value of (22.0 × 109/L) and MCHC value of (29.5g/dl) as compared to male chickens with mean heterophil and MCHC values of (16.8 × 109/L) and (25.7g/dl) respectively. There was significant (P<0.05) increase in PCV with increasing body weights in males but not in females. The MCHC decreased significantly (P<0.05) as the body weight increased also in males but not in females. The results of the study indicate that sex and body weights influenced normal haematological parameters of apparently healthy free range domestic chickens in the study environment. Keywords: Age, body weight, haematology, sex, village chicken.

scholarly journals The application of [D-Tle6,ProNHEt9]mGnRH (Lecirelin) with the dopaminergic inhibitor metoclopramide to stimulate ovulation in African catfish (Clarias gariepinus)

2011 ◽  
Vol 49 (No. 7) ◽  
pp. 297-306 ◽  
Author(s):  
E. Brzuska ◽  
J. Kouřil ◽  
J. Adamek ◽  
Z. Stupka ◽  
V. Bekh
Keyword(s):  
Body Weight ◽  
Female Body ◽  
Clarias Gariepinus ◽  
The Body ◽  
African Catfish ◽  
Average Body ◽  
Stimulation Of ◽  
Average Body Weight ◽  
Pituitary Homogenate

The results of reproduction were tested in females of the African catfish (Clarias gariepinus Burchell 1822) after stimulation of ovulation with carp pituitary (4 mg/kg body weight) or with Lecirelin (15 &mu;g/kg) and metoclopramide (10 mg/kg). After administering the synthetic substance eggs were obtained from all females while in the group treated with pituitary homogenate 7 out of 8 hypophysed females spawned. The applied spawning agent did not significantly influence the weight of eggs expressed in grams, but in the case of females treated with carp pituitary homogenate a significantly higher weight of eggs expressed as the percentage of body weight of fish was recorded. The applied stimulators of ovulation did not affect any trait reflecting the quality of eggs. Females used as an experimental material belonged to two categories in respect of body weight: lighter females with average body weight of 2.63 &plusmn; 0.36 kg and heavier females with average body weight of 3.91 &plusmn; 0.48 kg. It was proved that the weight of eggs expressed either in grams or as a percentage of a female&rsquo;s weight was significantly related to the body weight of a female (P &le; 0.01 and P &le; 0.05, respectively), as well as the percentage of fertilised eggs and the percentage of living embryos after 28 hours of incubation (P &le; 0.05 and P &le; 0.05, respectively). The interaction between the stimulator of ovulation and the female body weight was significant only for traits reflecting the weight of obtained eggs (P &le; 0.05 and P &le; 0.01). &nbsp;

scholarly journals Effects of Long-Term Gentle Handling on Behavioral Responses, Production Performance, and Meat Quality of Pigs

Animals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 330 ◽  
Author(s):  
Chao Wang ◽  
Yongjie Chen ◽  
Yanju Bi ◽  
Peng Zhao ◽  
Hanqing Sun ◽  
...  
Keyword(s):  
Heart Rate ◽  
Meat Quality ◽  
Average Daily Gain ◽  
Production Performance ◽  
Control Group ◽  
Carcass Quality ◽  
Feed Conversion ◽  
Significant Difference

In order to investigate the effect of gentle handling on the behavior, performance, and meat quality of pigs from weaning to slaughter, 144 6-week-old weaned hybrid Min piglets (a native breed) were selected and divided into a handling group (HG: 9 pens × 8 pigs) and a control group (CG: 9 pens × 8 pigs). After 6 weeks of handling, we observed and then evaluated the pigs’ responses to a handler with behavioral scores. Moreover, we measured heart rate and production performance. Three pigs were randomly selected from each of the 18 pens and divided into a handling group (HG: n = 27) and a control group (CG: n = 27), and the HG pigs were given gentle handling until slaughter. Subsequently, we evaluated meat quality and the production performance of six pigs from each group. The results show that AA test (approaching–avoidance test) scores in HG pigs, the number of contacts with the handler and absence of contact with the handler, were significantly higher than in the CG pigs (p < 0.01). The occurrences of avoidance and looking at the handler were lower in the HG than in the CG group (p < 0.01); however, heart rate was not found to be significantly different between the two groups (p = 0.63). No significant difference was found in the average daily gain, average daily feed intake, and feed conversion ratio between the two groups during the two periods (p > 0.05). The b* value was determined 45 min after slaughter, and it was significantly lower in the HG than that in the CG group (p = 0.002). Furthermore, 2 h after slaughter, the L value of the HG group was significantly higher than that of the CG group (p = 0.047), but no difference was observed in carcass quality or other meat quality indicators between the two groups (p > 0.05). The results indicate that gentle handling could reduce pigs’ anxiety and increase their willingness to approach the handler, increasing the intimacy of the pigs and handlers. However, long-term gentle handling had little effect on pig performance, carcass quality, and meat quality.

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