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Fernandes E, Raymundo A, Martins LL, Lordelo M, de Almeida AM. The Naked Neck Gene in the Domestic Chicken: A Genetic Strategy to Mitigate the Impact of Heat Stress in Poultry Production—A Review. Animals (Basel) 2023; 13:ani13061007. [PMID: 36978548 PMCID: PMC10044606 DOI: 10.3390/ani13061007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
The poultry sector is one of the most important food industries in the world. Poultry production generates high-value protein products (meat and eggs) that are produced efficiently without the need for large areas. In poultry production, especially in the tropics, environmental factors, such as temperature and humidity, play a major role. Heat stress (HS) causes behavioral, physical, and physiological changes in poultry, with severe financial impacts. Therefore, it is important to find strategies to minimize it. The naked neck (Na) is an autosomal, incompletely dominant gene. Compared with normal feathered birds, these animals are known for their ability to adapt, perform, and reproduce under hot and humid climate conditions. Due to the absence of feathers on the neck, these animals increase heat dissipation, alleviating adverse heat effects, especially on productive performance. Genetic improvement of heat tolerance may provide a low-cost solution, of particular interest for developing countries in the tropics. The focus of this review is to evaluate the impact of HS in poultry with a special emphasis on the advantages of using the Na gene.
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Fathi MM, Galal A, Radwan LM, Abou-Emera OK, Al-Homidan IH. Using major genes to mitigate the deleterious effects of heat stress in poultry: an updated review. Poult Sci 2022; 101:102157. [PMID: 36167017 PMCID: PMC9513277 DOI: 10.1016/j.psj.2022.102157] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 06/09/2022] [Accepted: 08/24/2022] [Indexed: 10/31/2022] Open
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Shafiq M, Khan MT, Rehman MS, Raziq F, Bughio E, Farooq Z, Gondal MA, Rauf M, Liaqat S, Sarwar F, Azad A, Asad T, Arslan M, Azhar M, Kamal RMA, Shakir M. Assessing growth performance, morphometric traits, meat chemical composition and cholesterol content in four phenotypes of naked neck chicken. Poult Sci 2022; 101:101667. [PMID: 35131639 PMCID: PMC8883059 DOI: 10.1016/j.psj.2021.101667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 11/18/2022] Open
Abstract
The present study was conducted to assess the growth performance, morphometric traits, muscle chemical composition and cholesterol content in four phenotypes of naked neck chicken (black, white-black, light brown and dark brown). A total of 320-day-old chicks, 80 from each phenotype, were randomly stratified into 20 replicates (16/replicate), according to a completely randomized design. The results showed higher final body weight, weight gain, and better FCR in both light brown and dark brown phenotypes whereas time of gains was found to be greater in dark brown phenotype. Keel length and shank circumference were greater in dark brown whereas wing spread was found to be higher in light brown phenotype. Drumstick circumference and body length did not show any significant differences (P > 0.05) across the phenotypes. Dry matter was found to be higher in white black, crude protein in black, white black and dark brown, moisture in light brown, and cholesterol content in black whereas ether extract and ash content were found to be greater in black and white black phenotypes. In conclusion, both light brown and dark brown phenotypes showed superior growth performance and morphometric traits. Similarly, from a health point of view, the dark brown and light brown phenotypes seem superior because their cholesterol content was low. Thus, it is strongly recommended that there should be a conscious effort to improve economically important traits of the light and dark brown birds to be used as dual-purpose slow growing chicken, especially in developing countries.
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Affiliation(s)
- M Shafiq
- Livestock and Dairy Development Department, Poultry Research Institute, Rawalpindi 46300, Pakistan
| | - M T Khan
- Department of Poultry Science, Faculty of Animal Production and Technology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan.
| | - M S Rehman
- Livestock and Dairy Development Department, Poultry Research Institute, Rawalpindi 46300, Pakistan
| | - F Raziq
- Department of Livestock and Dairy Development (Extension), KPK, Pakistan
| | - E Bughio
- Department of Poultry Production, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand 67210, Pakistan
| | - Z Farooq
- Department of Zoology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan
| | - M A Gondal
- Institute of Continuing Education and Extension, Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan
| | - M Rauf
- Department of Pathology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan
| | - S Liaqat
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur 63100, Pakistan
| | - F Sarwar
- Livestock and Dairy Development Department, Poultry Research Institute, Rawalpindi 46300, Pakistan
| | - A Azad
- Livestock and Dairy Development Department, Poultry Research Institute, Rawalpindi 46300, Pakistan
| | - T Asad
- Department of Poultry Science, Faculty of Animal Production and Technology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan
| | - M Arslan
- Department of Poultry Science, Faculty of Animal Production and Technology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan
| | - M Azhar
- Department of Poultry Science, Faculty of Animal Production and Technology, Cholistan University of Veterinary and Animal Sciences, Bahawalpur 63100, Pakistan
| | - R M A Kamal
- Livestock and Dairy Development Department, Poultry Research Institute, Rawalpindi 46300, Pakistan
| | - M Shakir
- Livestock and Dairy Development Department, Poultry Research Institute, Rawalpindi 46300, Pakistan
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Naked neck and frizzle genes for improving chickens raised under high ambient temperature: I. Growth performance and egg production. WORLD POULTRY SCI J 2019. [DOI: 10.1017/s0043933913000834] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Fathi MM, Al-Homidan I, Ebeid TA, Galal A, Abou-Emera OK. Assessment of Residual Feed Intake and Its Relevant Measurements in Two Varieties of Japanese Quails (Coturnixcoturnix japonica) under High Environmental Temperature. Animals (Basel) 2019; 9:ani9060299. [PMID: 31151298 PMCID: PMC6617549 DOI: 10.3390/ani9060299] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 05/21/2019] [Accepted: 05/22/2019] [Indexed: 11/16/2022] Open
Abstract
Three hundred and ten 12-week-old laying Japanese quails (Coturnixcoturnix japonica) from gray and white varieties (155 each) were randomly selected from the initial population and kept in individual battery cages. The measurements of growth and egg production were determined to derive residual feed intake (RFI). The relationship between RFI and egg quality, blood parameters, and carcass characteristics was also determined. The results indicated that the gray quails had significantly higher egg mass and lower broken eggs compared to the white quails. A significant increase of eggshell strength and shell percentage was found in eggs produced from gray quails compared to their white counterparts, although their shell thickness means weresimilar. The results of multiple regression analysis clearly identified a significant effect of metabolic body weight and egg mass for the computation of expected feed intake, rather than body weight gain, in both varieties of Japanese quails. A strong positive correlation between RFI and feed intake in both gray and white quail varieties was found. The same trend was also observed for feed conversion ratio (FCR). Therefore, including RFI in the selection criteria of Japanese quails in order to improve FCR under high environmental temperature is highly recommended.
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Affiliation(s)
- Moataz M Fathi
- Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine, Qassim University, Al-Qassim 51452, Saudi Arabia.
- Department of Poultry Production, Faculty of Agriculture, Ain Shams University, HadayekShoubra 11241, Cairo, Egypt.
| | - Ibrahim Al-Homidan
- Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine, Qassim University, Al-Qassim 51452, Saudi Arabia.
| | - Tarek A Ebeid
- Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine, Qassim University, Al-Qassim 51452, Saudi Arabia.
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, 33516 Kafr El-Sheikh, Egypt.
| | - Ahmed Galal
- Department of Poultry Production, Faculty of Agriculture, Ain Shams University, HadayekShoubra 11241, Cairo, Egypt.
| | - Osama K Abou-Emera
- Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine, Qassim University, Al-Qassim 51452, Saudi Arabia.
- Animal Production Research Institute, Agriculture Research Center, Dokki 12618, Giza, Egypt.
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Adomako K, Olympio OS, Hagan JK, Hamidu JA. Growth performance of crossbred naked neck and normal feathered laying hens kept in tropical villages. Br Poult Sci 2015; 55:701-8. [PMID: 25192492 DOI: 10.1080/00071668.2014.960805] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
1. Two experiments were conducted to develop naked neck (Na/na) and normal feathered (na/na) crossbreds and compare their growth performance, linear body measurements and carcass characteristics in the first and second filial generations. 2. In the first experiment, 4 indigenous naked neck males (Na/na) were mated to 36 Lohmann commercial females (na/na) in a ratio of 1:9. The two genotypes (Na/na, na/na) were allocated randomly according to batches of hatch, sire lines and sex to three different villages. 3. In the second experiment, 10 males and 100 females of F1 Na/na birds were selected and mated inter se in a ratio of 1:10. The three genotypes (Na/Na, Na/na and na/na) were compared in a randomised complete block design experiment, with the three villages, hatch and sex as blocks and the three genotypes as treatments. F1 Na/na birds had significantly higher (P < 0.05) feed conversion ratio, body weight, body weight gain, linear body measurements, survivability and carcass yield than their na/na counterparts. 4. In the F2 generation, Na/Na and Na/na birds had significantly higher (P < 0.05) feed conversion ratio, body weight, body weight gain, linear body measurements, survivability and carcass yield compared to their na/na counterparts. 5. The birds showing the naked neck phenotype appeared to show superior performance compared to normal feathered birds and could be exploited for potential utilisation in local poultry production.
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Affiliation(s)
- K Adomako
- a Department of Animal Science , KNUST , Kumasi , Ghana
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Naked neck and frizzle genes for improving chickens raised under high ambient temperature: II. Blood parameters and immunity. WORLD POULTRY SCI J 2014. [DOI: 10.1017/s0043933914000142] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kumar De A, Kundu A, Ruban VV, Kundu M, Jeyakumar S, Sunder J. Antibody response to goat erythrocytes in endangered Nicobari fowl, Vanaraja and their various F1 and F2 crosses under the hot humid climate of Andaman and Nicobar Islands, India. JOURNAL OF APPLIED ANIMAL RESEARCH 2013. [DOI: 10.1080/09712119.2012.738225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Zhang WH, Gao F, Zhu QF, Li C, Jiang Y, Dai SF, Zhou GH. Dietary sodium butyrate alleviates the oxidative stress induced by corticosterone exposure and improves meat quality in broiler chickens. Poult Sci 2011; 90:2592-9. [PMID: 22010246 DOI: 10.3382/ps.2011-01446] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
The present study was to investigate the effects of dietary microencapsulated sodium butyrate (SB) and acute pre-slaughter stress, mimicked by subcutaneous corticosterone (CORT) administration, on BW, carcass characteristics, muscle antioxidant status, and meat quality of broiler chickens. A total of 120 1-d-old broiler chickens were fed a control diet (without SB) or a 0.4-g microencapsulated SB/kg diet. On 42 d, half of the birds from each treatment were given 1 single subcutaneous injection of CORT (4 mg/kg of BW in corn oil) to mimic acute stress, whereas the other half were injected with the same amount of corn oil (sham control). Three hours later, BW loss was determined and breast meat samples were collected. The results showed that the BW of the CORT-challenged groups lost much more than the sham control group (P < 0.001), whereas it was alleviated by the dietary microencapsulated SB (P < 0.05). Meanwhile, the catalase activity was decreased and malondialdehyde level was increased by the stress (P < 0.05), and the microencapsulated-SB diet significantly inhibited this effect (P < 0.05). Lower pH values and higher yellowness values were also observed in CORT-challenged chickens (P < 0.05), and the microencapsulated-SB diet treatment partially exerted a preventive effect. Microencapsulated SB significantly decreased the contents of saturated fatty acids and C18:0 (P < 0.01 and P < 0.001), and increased C20:0 and C20:4 contents. However, the effect of the stress treatment on fatty acid composition was insignificant (P > 0.05). In addition, diet and stress did not significantly influence carcass characteristics and the chemical composition of breast meat (P > 0.05). These results suggest that microencapsulated SB was favorable for chickens in the presence of stress, which may be partially ascribed to the ability of SB to decrease catabolism and oxidative injury of tissues.
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Affiliation(s)
- W H Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Ramasamy KT, Reddy MR, Raveendranathan DN, Murugesan S, Chatterjee RN, Ullengala R, Haunshi S. Differential expression of Toll-like receptor mRNA in White Leghorn and indigenous chicken of India. Vet Res Commun 2010; 34:633-9. [DOI: 10.1007/s11259-010-9431-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/21/2010] [Indexed: 10/19/2022]
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de Almeida AM, Zuber U. The effect of the Naked Neck genotype (Nana), feeding and outdoor rearing on growth and carcass characteristics of free range broilers in a hot climate. Trop Anim Health Prod 2009; 42:99-107. [PMID: 19544084 DOI: 10.1007/s11250-009-9391-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Accepted: 06/08/2009] [Indexed: 11/24/2022]
Abstract
Alternative poultry production with special reference to free range broilers has increased significantly since the nineties in many regions of the world. Numerous factors influence the productive performance of this type of broilers: genotype (namely the use of naked neck animals), feeding and access to an outdoor area. The aim of this paper is to study the influence of each of these factors on the productive performance of free range broilers under commercial rearing conditions. A total of 3200, day old chicks of both sexes from naked neck and normally feathered genotypes were used in this trial. After a joint initiation phase, animals were divided into four different treatments with the combination of two concentrates (high vs low energy content) and management (access to outside park or not). Experiment lasted a total of 12 weeks. Live weight date was recorded weekly and a samples of animals from the trial were sacrificed at the age of 8, 10 and 12 weeks, when carcass characteristics were determined. Besides sex, the only factor that seems to affect growth characteristics was genotype as naked neck animals had poorer growth rates than normally feathered. No effect was detected on carcass yields and percentages of carcass components for any of the variables. From the data presented in this trial the practises associated with free range production are of relative inconsequence to the technical animal production parameters and can only be justified by a pressing need to differentiate these products from standard poultry products in what concerns both welfare issues and meat characteristics. The results also indicate that genetic material from alternative poultry production in Europe can be a useful option in poultry production development projects in the tropics.
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