1
|
Romero C, Yustos JL, Sánchez-Román I, López-Torres M, Chamorro S. Assessment of performance and egg quality in laying hens of Spanish indigenous breed Black Castellana as compared with a selected white egg-layer strain. Poult Sci 2024; 103:104096. [PMID: 39084061 PMCID: PMC11342189 DOI: 10.1016/j.psj.2024.104096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/01/2024] [Accepted: 07/09/2024] [Indexed: 08/02/2024] Open
Abstract
Indigenous animal genetic resources should be preserved because of their well adaptation to the environment, their tolerance to low food availability and their sociocultural importance. The characterization of the quality of the products generated by heritage breeds may bring more arguments to encourage the raising of these animals. This study aimed at evaluating the egg performance and quality of Spanish indigenous Black Castellana (BC) breed as compared with a selected strain (Lohmann LSL-Classic). Four groups of 30 hens were arranged: 1) Lohmann hens fed a control diet; 2) BC hens fed the control diet; 3) Lohmann hens fed a diet including linseed at 70 g/kg (omega-3 diet); 4) BC hens fed the omega-3 diet. Egg production was higher by 12.3% for Lohmann hens but, since BC eggs were heavier by 15.4%, no effect of genetics was found on daily egg mass. Feed intake was higher by 5.0% for BC hens. Nonetheless, no difference was detected for feed conversion ratio. Eggshell was thicker by 6.78% in Lohmann eggs. Haugh units did not differ among freshly laid and stored eggs in Lohmann hens, whereas Haugh units decreased in stored BC eggs (80.5 vs. 76.7 vs. 72.3 at 0, 14, and 30 d of storage). Yolks of BC eggs contained less fat (57.5 vs. 60.8% DM), more protein (32.8 vs. 31.9% DM) and more cholecalciferol (1.25 vs. 1.22 μg/g DM), and showed lower proportion of saturated fatty acids (29.0 vs. 37.0%) and higher proportions of monounsaturated (45.7 vs. 39.6%) and polyunsaturated (25.2 vs. 23.4%) fatty acids. Feeding the omega-3 diet reduced the yolk proportions of saturated (32.5 vs. 33.5%) and monounsaturated (42.0 vs. 43.3%) fatty acids and increased those of polyunsaturated (25.4 vs. 23.2%) and ω-3 (7.05 vs. 2.42%) fatty acids. No effect due to genetics or diet was found on yolk color score or on yolk content in cholesterol, cobalamin, retinol and γ-tocopherol. This study represents the first exhaustive characterization of eggs from Spanish indigenous Black Castellana breed.
Collapse
Affiliation(s)
- C Romero
- Facultad de Ciencias y Artes, Universidad Católica Santa Teresa de Jesús de Ávila (UCAV), Ávila 05005, Spain.
| | - J L Yustos
- Asociación de Amigos de la Gallina Castellana Negra (GANECA), Viloria 47166, Spain
| | - I Sánchez-Román
- Unidad de Fisiología Animal, Departamento de Genética, Fisiología y Microbiología, Facultad de Ciencias Biológicas, Universidad Complutense (UCM), Madrid 28040, Spain
| | - M López-Torres
- Unidad de Fisiología Animal, Departamento de Genética, Fisiología y Microbiología, Facultad de Ciencias Biológicas, Universidad Complutense (UCM), Madrid 28040, Spain
| | - S Chamorro
- Unidad de Fisiología Animal, Departamento de Genética, Fisiología y Microbiología, Facultad de Ciencias Biológicas, Universidad Complutense (UCM), Madrid 28040, Spain
| |
Collapse
|
2
|
Hejdysz M, Nowaczewski S, Perz K, Szablewski T, Stuper-Szablewska K, Cegielska-Radziejewska R, Tomczyk Ł, Przybylska-Balcerek A, Buśko M, Kaczmarek SA, Ślósarz P. Influence of the genotype of the hen (Gallus gallus domesticus) on main parameters of egg quality, chemical composition of the eggs under uniform environmental conditions. Poult Sci 2024; 103:103165. [PMID: 37931396 PMCID: PMC10654236 DOI: 10.1016/j.psj.2023.103165] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/29/2023] [Accepted: 10/06/2023] [Indexed: 11/08/2023] Open
Abstract
The objective of this study was to identify and compare the quality characteristics and concentrations of various compounds in eggs from several pure breeds and lines of hens reared under the same environmental conditions and fed a commercial feed. A total of 280 hens aged 52 to 56 wk belonging to 14 different breeds or lines of hens worldwide were included in this study. Their eggs were characterized by wide differences in various egg quality parameters. Breeds and lines of hens with a higher lutein content in eggs were characterized by a lower beta-carotene content (e.g. Hy line brown, Cochin miniature, Ayam Cemani) (P < 0.001). Additionally, vitamin D, cholesterol, and fatty acid contents were also different between eggs, from 1.51 to 1.79 μg/100g; from 14.1 to 15.4 mg/g fat, PUFA from 19.6 to 22.8 g/100g fat, and SFA from 32.8 to 37.8 g/100g fat respectively (P < 0.001). Lysozyme content also exhibited significant variation among breeds, with some showing a 2-fold higher content in eggs compared to others (0.31% - cochin miniature, 0.66% Faverolle) (P < 0.001). Our study demonstrated that intensively selected hen breeds like Hy-line Brown Hybrid had an improved egg quality seen by the increase in many parameters (e.g., egg weight, Haugh unit, Lutein, vitamins D, MUFA) compared to pure breed hens. In conclusion, genetic differences between breeds and lines of hens have a significant impact on the quality of eggs.
Collapse
Affiliation(s)
- M Hejdysz
- Department of Animal Breeding and Product Quality Assessment, Poznan University of Life Sciences, 60-637 Poznan´, Poland.
| | - S Nowaczewski
- Department of Animal Breeding and Product Quality Assessment, Poznan University of Life Sciences, 60-637 Poznan´, Poland
| | - K Perz
- Department of Animal Breeding and Product Quality Assessment, Poznan University of Life Sciences, 60-637 Poznan´, Poland
| | - T Szablewski
- Department of Food Quality and Safety Management, Poznan University of Life Sciences, 60-637 Poznan´, Poland
| | - K Stuper-Szablewska
- Department of Chemistry, Poznan University of Life Sciences, 60-637 Poznan´, Poland
| | - R Cegielska-Radziejewska
- Department of Food Quality and Safety Management, Poznan University of Life Sciences, 60-637 Poznan´, Poland
| | - Ł Tomczyk
- Department of Food Quality and Safety Management, Poznan University of Life Sciences, 60-637 Poznan´, Poland
| | | | - M Buśko
- Department of Chemistry, Poznan University of Life Sciences, 60-637 Poznan´, Poland
| | - S A Kaczmarek
- Department of Animal Nutrition, Poznan University of Life Sciences, 60-637 Poznan´, Poland
| | - P Ślósarz
- Department of Animal Breeding and Product Quality Assessment, Poznan University of Life Sciences, 60-637 Poznan´, Poland
| |
Collapse
|
3
|
Egg Quality of Italian Local Chicken Breeds: I. Yield Performance and Physical Characteristics. Animals (Basel) 2022; 13:ani13010148. [PMID: 36611756 PMCID: PMC9817804 DOI: 10.3390/ani13010148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/22/2022] [Accepted: 12/24/2022] [Indexed: 01/03/2023] Open
Abstract
The aim of this study was to compare yield performance (from 39 to 50 weeks of age) and egg physical characteristics (at 50 weeks of age) of eight autochthonous chicken breeds of the Veneto region (Italy). Four white eggshell breeds, namely Padovana Camosciata (PA-C, chamois plumage), Padovana Dorata (PA-G, golden plumage), Polverara Bianca (PO-W, white plumage), and Polverara Nera (PO-B, black plumage), and four tinted eggshell breeds, namely Pepoi (PP), Ermellinata di Rovigo (ER), Robusta Maculata (RM), and Robusta Lionata (RL) from a conservation centre were considered in the trial. Significant differences (p < 0.05) among breeds were observed for yield performance and egg quality. From 39 to 50 weeks of age, the hen-day egg production was higher in PA-C and RM than in RL, and PO-W and ER were intermediate; PA-G, PO-B, and PP were the lowest. The hen-day egg production changed according to the age of the hens. From 39 to 42 weeks of age, ER showed the highest hen-day egg production and PA-G the lowest; from 47 to 50 weeks, PA-C, PO-W, and RM were the highest and PP the lowest. The tinted eggshell breeds, with the exception of PP, had higher egg weights than white eggshell breeds. PP egg weight was similar to PO-B. As regards the tinted eggshell breeds, RM eggs had the highest eggshell a* and b*, and PP the lowest. PA-C had the most spherical eggs, and PO-B and ER had the most ovoid eggs. PO-W and RM had the highest eggshell thickness and ER had the lowest. The highest eggshell ratio was observed for PO-W and PO-B, and the lowest for ER. The yolk-to-albumen ratio was higher in the white eggshell breeds than in PP, ER, and RL. ER had the highest Haugh units and PA-G the lowest. PO-W, PO-B, PA-C, PA-G, and ER had the lowest egg inclusions, and RL and RM the highest. Tinted eggshell eggs differed from white eggshell eggs by having higher meat spots. Results indicated that the eggs produced by the eight local chicken breeds differed according to the laying rate and a wide range of physical external and internal characteristics which allow the consumer to distinguish them for their genetic origin by the eggshell shape and colour, and to use them for different purposes to valorise poultry biodiversity.
Collapse
|
4
|
Cendron F, Currò S, Rizzi C, Penasa M, Cassandro M. Egg Quality of Italian Local Chicken Breeds: II. Composition and Predictive Ability of VIS-Near-InfraRed Spectroscopy. Animals (Basel) 2022; 13:ani13010077. [PMID: 36611687 PMCID: PMC9817770 DOI: 10.3390/ani13010077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/16/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
The aims of the present study were to characterize egg composition and develop VIS-Near-infrared spectroscopy (VIS-NIR) models for its predictions in Italian local chicken breeds, namely Padovana Camosciata, Padovana Dorata, Polverara Bianca, Polverara Nera, Pepoi, Ermellinata di Rovigo, Robusta Maculata and Robusta Lionata. Hens were reared in a single conservation center under the same environmental and management conditions. A total of 200 samples (25 samples per breed, two eggs/sample) were analyzed for the composition of albumen and yolk. Prediction models for these traits were developed on both fresh and freeze-dried samples. Eggs of Polverara Nera and Polverara Bianca differed from eggs of the other breeds (p < 0.05) in terms of the greatest moisture content (90.06 ± 1.23% and 89.57 ± 1.31%, respectively) and the lowest protein content (8.34 ± 1.27% and 8.81 ± 1.27%) in the albumen on wet basis. As regards the yolk, Robusta Maculata and Robusta Lionata differed (p < 0.05) from the other breeds, having lower protein content (15.62 ± 1.13% and 15.21 ± 0.63%, respectively) and greater lipid content (34.11 ± 1.12% and 35.30 ± 0.98%) on wet basis. Eggs of Pepoi had greater cholesterol content (1406.39 ± 82.34 mg/100 g) on wet basis compared with Padovana Camosciata, Polverara Bianca and Robusta Maculata (p < 0.05). Spectral data were collected in reflectance mode in the VIS-NIR range (400 to 2500 nm) using DS2500 (Foss, Hillerød, Denmark) on fresh and freeze-dried samples. Models were developed through partial least-squares regression on untreated and pre-treated spectra independently for yolk and albumen, and using several combinations of scattering corrections and mathematical treatments. The predictive ability of the models developed for each compound was evaluated through the coefficient of determination (R2cv), standard error of prediction (SEcv) and the ratio of performance to deviation (RPDcv) in cross-validation. Prediction models performed better for freeze-dried than fresh albumen and yolk. In particular, for the albumen the performance of models using freeze-dried eggs was excellent (R2cv ≥ 0.91), and for yolk it was suitable for the prediction of protein content and dry matter. Good performances of prediction were observed in yolk for dry matter (R2cv = 0.85), lipids and cholesterol (R2cv = 0.74). Overall, the results support the potential of infrared technology to predict the composition of eggs from local hens. Prediction models for proteins, dry matter and lipids of freeze-dried yolk could be used for labelling purposes to promote local breeds through the valorization of nutritional aspects.
Collapse
Affiliation(s)
- Filippo Cendron
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy
| | - Sarah Currò
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy
- Correspondence:
| | - Chiara Rizzi
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy
| | - Mauro Penasa
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy
| | - Martino Cassandro
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy
- Federazione delle Associazioni Nazionali di Razza e Specie, Via XXIV Maggio 43, 00187 Roma, Italy
| |
Collapse
|
5
|
da Rosa G, Dazuk V, Galli GM, Alba DF, Boiago MM, Oliveira FC, Siebeneichler TJ, Zambiazi RC, Galli V, Copetti PM, Schetinger MR, Wagner R, Meinhart AD, Da Silva AS. The addition of residue from pruning of yerba mate (Ilex paraguariensis) in laying hens modulates fatty acid profile and incorporates chlorogenic acid in the egg. Res Vet Sci 2022; 147:28-36. [DOI: 10.1016/j.rvsc.2022.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 03/06/2022] [Accepted: 03/30/2022] [Indexed: 10/18/2022]
|
6
|
González Ariza A, Arando Arbulu A, Navas González FJ, León Jurado JM, Delgado Bermejo JV, Camacho Vallejo ME. Data mining-based discriminant analysis as a tool for the study of egg quality in native hen breeds. Sci Rep 2022; 12:15873. [PMID: 36151264 PMCID: PMC9508079 DOI: 10.1038/s41598-022-20111-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 09/08/2022] [Indexed: 11/09/2022] Open
Abstract
Despite the wide biodiversity of avian species of zootechnical interest in Spain, projects aimed at characterizing these genotypes and their products are necessary. External and internal egg quality traits were measured in 819 eggs laid by hens of 10 different genotypes: White, Franciscan, Black and Partridge varieties of Utrerana, Blue Andalusian, Spanish White-Faced, Andalusian Tufted White and Black varieties, Araucana; and Leghorn Lohmann LSL-Classic lineage (commercial hybrid line) hen breeds. After multicollinearity analysis of egg quality-related traits was performed (VIF ≤ 4), major diameter, minor diameter, egg weight, and albumen height were deemed redundant explanatory variables and discarded. A stepwise discriminant canonical analysis was developed to cluster eggs across hen genotypes considering egg quality attributes. Shell a* and b* variables reported the highest discriminant power (Wilks' lambda: 0.699 and 0.729, respectively). The first two discriminant functions captured 60.48% of the variance across groups (F1: 39.36%; F2: 21.12%). Clear quality differentiation signs are evidenced for Mediterranean native breeds' eggs when compared to Leghorn's eggs. Consequently, this evidence of egg quality differentiation may favor the standardization of breed- and variety-linked distinctive products, which may open new market opportunities based on the existence of a wide spectrum of diet or culinary applications.
Collapse
Affiliation(s)
- Antonio González Ariza
- Department of Genetics, Faculty of Veterinary Sciences, University of Córdoba, 14071, Córdoba, Spain
| | - Ander Arando Arbulu
- Department of Genetics, Faculty of Veterinary Sciences, University of Córdoba, 14071, Córdoba, Spain
- Animal Breeding Consulting S.L., 14014, Córdoba, Spain
| | - Francisco Javier Navas González
- Department of Genetics, Faculty of Veterinary Sciences, University of Córdoba, 14071, Córdoba, Spain.
- Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Alameda del Obispo, 14004, Córdoba, Spain.
| | | | | | | |
Collapse
|
7
|
Freick M, Herzog M, Rump S, Vogt I, Weber J, John W, Schreiter R. Incubation characteristics, growth performance, carcass characteristics and meat quality of Saxonian Chicken and German Langshan bantam breeds in a free‐range rearing system. Vet Med Sci 2022; 8:1578-1593. [PMID: 35748114 PMCID: PMC9297756 DOI: 10.1002/vms3.815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Background/introduction In the absence of evidence‐based findings for Saxonian Chicken (SaChi) and German Langshan bantam (GLB), which are indigenous endangered German fancy chicken breeds, the objective of the present study was to characterise their growth performance and meat potential in an extensive free‐range system Methods A total of 340 hatching eggs from SaChi and 439 eggs from GLB were provided by private breeders, from which 263 SaChi (77.3%) and 174 GLB (39.6%) hatched (p < 0.001) Results By week 20, SaChi reached body weights of 2362.3 ± 315.3 g (mean ± SD; roosters) and 1624.7 ± 158.9 g (hens), while GLB weighed 1089.7 ± 148.3 g (roosters) and 820.4 ± 89.5 g (hens). Fitting the non‐linear regression of growth data to the Gompertz function estimated asymptotic body weights of 3131.4, 2363.9, 1359.2 and 1107.3 g, with inflection point times of 10.5, 10.3, 9.2 and 9.3 weeks in male SaChi, female SaChi, male GLB and female GLB, respectively. Moderate plumage damage was observed on days 18, 35, 53, 70 and 105 in SaChi and on days 53, 70 and 105 in GLB, while all birds presented completely intact plumage on day 140. Using a binary logistic regression model, breed, age and sex were shown to affect the plumage condition (p < 0.001 each). Roosters were slaughtered in week 20. No breed effects were detected in the carcass yield (SaChi: 68.8 ± 1.7%, GLB: 69.7 ± 1.8%) (p = 0.135) or abdominal fat share (SaChi: 0.89 ± 0.15%, GLB: 1.08 ± 0.14%) (p = 0.281). The percentage of valuable cuts (breast fillets and legs) in the carcass was 43.8 ± 1.9% for SaChi and 43.1 ± 3.0% for GLB (p = 0.490) Discussion/conclusions In conclusion, this study provides insights into the performance traits and welfare indicators during the rearing of two endangered German chicken breeds.
Collapse
Affiliation(s)
- Markus Freick
- Faculty Agriculture/Environment/Chemistry HTW Dresden, University of Applied Sciences Dresden Germany
- Veterinary Practice Zettlitz Zettlitz Germany
- ZAFT e.V., Centre for Applied Research and Technology Dresden Germany
| | - Marion Herzog
- Faculty Agriculture/Environment/Chemistry HTW Dresden, University of Applied Sciences Dresden Germany
| | | | - Isabelle Vogt
- Faculty Agriculture/Environment/Chemistry HTW Dresden, University of Applied Sciences Dresden Germany
| | - Jim Weber
- Veterinary Practice Zettlitz Zettlitz Germany
| | - Wolfram John
- Saxonian Fancy Poultry Breeder's Association Oberschöna Germany
| | - Ruben Schreiter
- ZAFT e.V., Centre for Applied Research and Technology Dresden Germany
| |
Collapse
|
8
|
Qualitative Attributes of Commercial Pig Meat from an Italian Native Breed: The Nero d’Abruzzo. Foods 2022; 11:foods11091297. [PMID: 35564019 PMCID: PMC9102233 DOI: 10.3390/foods11091297] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/10/2022] [Accepted: 04/25/2022] [Indexed: 11/26/2022] Open
Abstract
The main objective of this study was to characterize the main qualitative properties of commercial meat obtained from the Nero d’Abruzzo pig, a native breed of Central Italy. In order to valorize this animal production, a direct comparison was made with commercial meat products obtained from hybrid pigs. Over a period of 30 days, 76 steaks for each breed were purchased from the market, and samples were analyzed for total lipid content, fatty acids profile, Coenzyme Q10 content, resistance of meat to oxidative processes, volatile profile of cooked meat and electrophoretic profile of myofibrillar and sarcoplasmic proteins. Results showed the Nero d’Abruzzo to be richer in fat, which, however, is characterized by a higher concentration of α-linolenic acid, to which are attributed important health benefits. The native breed was also richer in Coenzyme Q10, a compound credited with antioxidant potential, whose presence could explain the better oxidative stability of meat samples that were cooked and stored for up to 7 days at +4 °C. In support of this last data, our finding of the characterization of the volatile profile of cooked meat, at the end of the storage period, showed in Nero d’Abruzzo a reduction in the accumulation of hexanal, notoriously associated with oxidative events and the development of unpleasant aromatic notes. In conclusion, aspects that can justify the nutritional superiority of this niche production compared to meat coming from cosmopolitan breeds have been identified.
Collapse
|
9
|
Gumułka M, Andres K, Krawczyk J, Calik J. Research Note: The nutritional value of eggs from native Polish Crested chickens and commercial hybrids that have been stored in various conditions. Poult Sci 2021; 101:101579. [PMID: 34920384 PMCID: PMC8686057 DOI: 10.1016/j.psj.2021.101579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/30/2021] [Accepted: 11/02/2021] [Indexed: 11/25/2022] Open
Abstract
The aim of the study was to compare the nutritive value of eggs from Polish Crested chickens (PCr) to that of eggs from commercial hybrid Hy-Line Brown (HLB) and to examine the effect of storage conditions on physical quality parameters. In total, 135 PCr (9 pens) and 75 (5 pens) HLB chickens were kept on litter and fed commercial feed. At laying peak (36 wk), all eggs (n = 66/ genotype) were collected on the same day and divided into 3 groups (n = 20): group I was assessed on the day after laying; group II was analyzed after 28 d of storage in a fridge; group III, after 28 d in storeroom conditions of 19.5 to 20.5°C. For group I, vitamin A and E content (n = 3 samples) and fatty acid (FA) profiles (n = 6 samples) were determined. For all groups, the physical quality parameters of the eggs were assessed. The vitamin E content was higher (P < 0.05) for PCr than HLB. The PUFA n-6 FA content was higher and the amount of MUFA was lower (P < 0.05) for PCr when compared to HLB. All physical parameters changed after storage, with more negative changes recorded for group III than for group II. Concerning egg weight, albumen height, Haugh unit score and the pH of the yolk and albumen, interaction between genotype and storage conditions (P < 0.001 – P < 0.05) was demonstrated. The lightest eggs with the lowest albumen height and the highest pH were recorded from PCr in group III. The lowest Haugh unit score was recorded from HLB eggs stored in the same conditions. Moreover, the eggs of PCr were characterized by a higher (P < 0.001) yolk content and yolk color (P < 0.05), whereas the weight of the yolk and content of albumen were lower (P < 0.001) for HLB. Eggs from PCr that are stored in appropriate conditions could possibly be offered as a niche product.
Collapse
Affiliation(s)
- Małgorzata Gumułka
- Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Krakow, 30-059 Kraków, Poland.
| | - Krzysztof Andres
- Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Krakow, 30-059 Kraków, Poland
| | - Józefa Krawczyk
- Department of Poultry Breeding, National Research Institute of Animal Production, 32-083 Balice, Poland
| | - Jolanta Calik
- Department of Poultry Breeding, National Research Institute of Animal Production, 32-083 Balice, Poland
| |
Collapse
|
10
|
González Ariza A, Arando Arbulu A, Navas González FJ, Delgado Bermejo JV, Camacho Vallejo ME. Discriminant Canonical Analysis as a Validation Tool for Multivariety Native Breed Egg Commercial Quality Classification. Foods 2021; 10:foods10030632. [PMID: 33802707 PMCID: PMC8002516 DOI: 10.3390/foods10030632] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/12/2021] [Accepted: 03/13/2021] [Indexed: 12/17/2022] Open
Abstract
This study aimed to develop a tool to validate multivariety breed egg quality classification depending on quality-related internal and external traits using a discriminant canonical analysis approach. A flock of 60 Utrerana hens (Franciscan, White, Black, and Partridge) and a control group of 10 Leghorn hens were placed in individual cages to follow the traceability of the eggs and perform an individual internal and external quality assessment. Egg groups were determined depending on their commercial size (S, M, L, and XL), laying hen breed, and variety. Egg weight, major diameter, minor diameter, shell b*, albumen height, and the presence or absence of visual defects in yolk and/or albumen showed multicollinearity problems (variance inflation factor (VIF) > 5) and were discarded. Albumen weight, eggshell weight, and yolk weight were the most responsible traits for the differences among egg quality categories (Wilks’ lambda: 0.335, 0.539, and 0.566 for albumen weight, eggshell weight, and yolk weight, respectively). The combination of traits in the first two dimensions explained 55.02% and 20.62% variability among groups, respectively. Shared properties between Partridge and Franciscan varieties may stem from their eggs presenting heavier yolks and slightly lower weights, while White Utrerana and Leghorn hens’ similarities may be ascribed to hybridization reminiscences.
Collapse
Affiliation(s)
- Antonio González Ariza
- Department of Genetics, Faculty of Veterinary Sciences, University of Córdoba, 14071 Córdoba, Spain; (A.G.A.); (A.A.A.); (J.V.D.B.)
| | - Ander Arando Arbulu
- Department of Genetics, Faculty of Veterinary Sciences, University of Córdoba, 14071 Córdoba, Spain; (A.G.A.); (A.A.A.); (J.V.D.B.)
| | - Francisco Javier Navas González
- Department of Genetics, Faculty of Veterinary Sciences, University of Córdoba, 14071 Córdoba, Spain; (A.G.A.); (A.A.A.); (J.V.D.B.)
- Instituto de Investigación y Formación Agraria y Pesquera (IFAPA), Alameda del Obispo, 14004 Córdoba, Spain;
- Correspondence: ; Tel.: +34-638-535-046 (ext. 621262)
| | - Juan Vicente Delgado Bermejo
- Department of Genetics, Faculty of Veterinary Sciences, University of Córdoba, 14071 Córdoba, Spain; (A.G.A.); (A.A.A.); (J.V.D.B.)
| | | |
Collapse
|