British Poultry Science最新文献_第2页

Does the distribution of light intensity within the barn impact broiler production and welfare? 鸡舍内的光照强度分布会影响肉鸡的生产和福利吗？

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2024-10-28 DOI: 10.1080/00071668.2024.2414460

T Shynkaruk, M Parsons, C A B Adler, C Goeree, K Long, K Schwean-Lardner

{"title":"Does the distribution of light intensity within the barn impact broiler production and welfare?","authors":"T Shynkaruk, M Parsons, C A B Adler, C Goeree, K Long, K Schwean-Lardner","doi":"10.1080/00071668.2024.2414460","DOIUrl":"10.1080/00071668.2024.2414460","url":null,"abstract":"1. The objective of this study was to determine if rearing broilers under variable light intensity (VLI) impacted their welfare or productivity.2. Ross 308 broilers (n = 7,256) were reared until 35 d of age and exposed to a uniform intensity of 10 lux (CON) or VLI with low intensity areas of 2-5 lux proximal to the walls and high intensity areas of 84-133 lux proximal to feeders.3. The data were analysed as a complete randomised design using an analysis of variance. Significance was declared when p ≤ 0.05.4. Applying VLI resulted in increased feed intake early in life but had no impact on body weight. Overall efficiency was improved in the CON treatment. Mortality diagnoses of skeletal problems were reduced under VLI. Treatment had no impact on footpad, hock or gait score, heterophil to lymphocyte ratio or melatonin concentration. Birds performed certain behaviours in specific locations within the room, independent of light intensity treatment.5. In conclusion, raising broilers under VLI had little impact on production or most welfare parameters assessed in this study. However, satisfying the bird's preference for different light intensities may improve welfare.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"281-289"},"PeriodicalIF":1.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142495555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Is oviposition time and oviposition interval associated with the deposition of cuticle on the hen's egg? 产卵时间和产卵间隔与鸡蛋表皮沉积有关吗？

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2024-11-29 DOI: 10.1080/00071668.2024.2425633

I C Dunn, P W Wilson, S Struthers, B Andersson, M Schmutz, L Hattendorf, H Brown

{"title":"Is oviposition time and oviposition interval associated with the deposition of cuticle on the hen's egg?","authors":"I C Dunn, P W Wilson, S Struthers, B Andersson, M Schmutz, L Hattendorf, H Brown","doi":"10.1080/00071668.2024.2425633","DOIUrl":"10.1080/00071668.2024.2425633","url":null,"abstract":"1. The cuticle acts as a barrier to prevent microbial penetration of the eggshell. The reduction in the oviposition interval with selection for egg production and the activity of clock genes in the oviduct led to testing the hypothesis that the interval between successive oviposition of eggs would be related to the deposition of the cuticle.2. There was oviposition interval and cuticle deposition data from 2140 eggs from 5 White Leghorn pure lines for over 7 d. The association between oviposition interval and cuticle deposition was assessed using a random slopes model for each hen.3. The time of oviposition was 05:37 h:m, about 2.5 h after lights on. Differences in oviposition time between lines were significant (P=0.025). Oviposition interval was slightly greater than 24 h at 24:06 h:min with significant differences between lines (P = 0.003). The variance was low and the maximum difference between lines for oviposition interval was only 11 min. Cuticle deposition was 28.87ΔE*ab with no differences between lines.4. The number of eggs a hen laid had an effect on the oviposition interval (P = 0.004), being shortest in hens laying seven eggs (24:01 h:m) than those laying six (24:08) or five eggs (24:14).5. There was a significant positive association between cuticle deposition and oviposition interval (P = 0.007) with a minimal increase of 0.79 ΔE*ab in cuticle deposition for each additional hour of oviposition interval. Heritability for cuticle deposition in this study was 0.48 but heritability was not measurable for oviposition interval and was not different from zero for oviposition time.6. Combined with a difference between the top and tail of the distribution for cuticle deposition, there was evidence for a significant but relatively small relationship between oviposition interval and deposition of cuticle on the egg. This may have contributed to some reduction in cuticle coverage as the oviposition interval approached 24 h, but it seems unlikely that it was a major component.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"413-418"},"PeriodicalIF":1.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142750091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of using microalgae in poultry diets on the production and quality of meat and eggs: a review. 家禽饲粮中添加微藻对肉蛋生产和品质的影响

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2025-01-15 DOI: 10.1080/00071668.2024.2420330

O Madacussengua, A R Mendes, A M Almeida, M Lordelo

引用次数: 0

Temporal appearance of embryonic compartments and their sexual dimorphism in chicken. 鸡胚胎分区的时间性出现及其性别二态性。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2024-11-25 DOI: 10.1080/00071668.2024.2430634

P Horkaew, S Kupittayanant, P Kupittayanant

{"title":"Temporal appearance of embryonic compartments and their sexual dimorphism in chicken.","authors":"P Horkaew, S Kupittayanant, P Kupittayanant","doi":"10.1080/00071668.2024.2430634","DOIUrl":"10.1080/00071668.2024.2430634","url":null,"abstract":"1. Building on established understandings regarding hormonal and metabolic-driven processes of avian embryo's growth and development, this paper proposes a novel method, focusing on sex-related dimorphism. Such processes involve crucial activities, e.g. nutrition delivery, gas exchange and waste disposal. These are influenced by interactions among various structures within embryonic compartments, whose sequential patterns between males and females have been proven different.2. The embryonic compartments, having undergone physiological changes during d 8-12, were acquired from candled images. Their temporal appearance model was developed from a non-linear classifier. It was hypothesised that if there is any distinctive pattern associated with the embryonic compartments between embryo sexes, then the classifier can be trained to recognise the dimorphism.3. The results revealed that the proposed method could separate sexes in ovo with accuracy, recall, precision and balance accuracy of 94.71, 93.47, 95.92 and 94.72%, respectively. Error analyses found 4.82% false discovery and 9.78% false omission rates. The method was expected to enhance farming resource management and leads to better animal welfare.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"331-342"},"PeriodicalIF":1.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142709318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and validation of a high-density SNP chip tailored for genomic analysis in Indian backyard chickens. 用于印度后院鸡基因组分析的高密度SNP芯片的开发和验证。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-05-28 DOI: 10.1080/00071668.2025.2500343

R K Vijh, R Arora, U Sharma, M Raheja, P Kapoor, S Ahlawat, R Sharma

{"title":"Development and validation of a high-density SNP chip tailored for genomic analysis in Indian backyard chickens.","authors":"R K Vijh, R Arora, U Sharma, M Raheja, P Kapoor, S Ahlawat, R Sharma","doi":"10.1080/00071668.2025.2500343","DOIUrl":"https://doi.org/10.1080/00071668.2025.2500343","url":null,"abstract":"1. Indian backyard chicken breeds are well adapted to local climatic conditions and possess distinct genetic characteristics, necessitating a dedicated SNP chip to address their unique genetic diversity, breed identification and conservation needs. In this study, a high-density SNP chip, Axiom_Kukkut was developed with SNP markers derived from genomes of 16 indigenous chicken breeds, Red Jungle Fowl and White Leghorn.2. A total of 622,376 markers and an inter-marker distance of 1.9 kb, the Axiom_Kukkut provided a denser marker distribution compared to existing arrays. The chip was validated by genotyping a set of samples from diverse Indian chicken breeds. All the SNPs were used for validation. An average call rate of 99.92% and 91.28%, as high resolution polymorphic markers, demonstrated the high precision of the designed array.3. Population stratification analysis revealed high genetic diversity and distinct linkage disequilibrium patterns among various breeds. Multivariate principal component analysis confirmed the genetic distinctiveness of Red Jungle Fowl and Uttara, suggesting low genetic diversity due to geographic isolation or specific breeding practices.4. The customised SNP chip allows a multitude of possibilities, including applications in genome-wide association analysis, identification of selection signatures, population genetics and breed improvement programmes for Indian chicken. Continued refinement will expand its utility to include exotic and commercial breeds as well, enhancing its overall applicability across a wider range of chicken populations.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-9"},"PeriodicalIF":1.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144157031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing diet specification to maximise feed efficiency and production characteristics of the Redbro slow growing broiler chicken. 提高日粮规格，最大限度地提高红宝慢生长肉鸡的饲料效率和生产特性。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-05-28 DOI: 10.1080/00071668.2025.2506077

H M Scott-Cook, S C Mansbridge, A M Mackenzie, D G Yovchev, V R Pirgozliev

{"title":"Enhancing diet specification to maximise feed efficiency and production characteristics of the Redbro slow growing broiler chicken.","authors":"H M Scott-Cook, S C Mansbridge, A M Mackenzie, D G Yovchev, V R Pirgozliev","doi":"10.1080/00071668.2025.2506077","DOIUrl":"https://doi.org/10.1080/00071668.2025.2506077","url":null,"abstract":"1. This study assessed the impact of feeding a high nutrient specification (HS) diet, recommended for fast growing broilers and a low nutrient specification (LS) diet, recommended for slow growing broilers, on growth performance variables, including feed intake (FI), weight gain (WG) and feed conversion ratio (FCR) and production characteristics of fast growing Ross 308 broilers and slow growing Redbro broilers.2. As hatched, Ross 308 (n = 210) and Redbro broilers (n = 210) were randomly allocated to 28 floor pens, 14 pens for each genotype and fed experimental diets from 0 to 42 d of age over four feeding phases. Each diet was fed to seven pens of each genotype, following a randomised, blocked, factorial design.3. Growth performance variables were determined for each feeding phase. Excreta were collected during the last 4 d of the study to determine dietary N-corrected apparent metabolisable energy (AMEn) and nutrient retention coefficients. At 42 d of age, one bird per pen was humanely killed and samples were obtained for determination of meat quality variables, jejunal histomorphology and liver triglycerides.4. Feeding the HS diet increased FI (p < 0.05), WG (p < 0.001) and reduced FCR (p < 0.001) in both genotypes from 0 to 42 d compared to feeding the LS diet. Feeding the HS diet increased AMEn intake (p < 0.001). Diet did not affect breast meat quality, except for increasing drip loss in Ross 308 broilers (p < 0.05), nor did it affect breast myopathies, jejunal morphology, or liver function. Therefore, feeding the HS diet, which was formulated to meet the nutrient recommendations for Ross 308, can be a practical strategy to improve the feed efficiency of Redbro broilers.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-11"},"PeriodicalIF":1.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144157034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In vitro antimicrobial resistant pattern, plasmid profile and the survival of Campylobacter jejuni isolated from poultry sources. 禽源空肠弯曲杆菌的体外耐药模式、质粒谱和存活。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-05-21 DOI: 10.1080/00071668.2025.2494601

M Divya, S Rajakumar, P M Ayyasamy

{"title":"In vitro antimicrobial resistant pattern, plasmid profile and the survival of Campylobacter jejuni isolated from poultry sources.","authors":"M Divya, S Rajakumar, P M Ayyasamy","doi":"10.1080/00071668.2025.2494601","DOIUrl":"https://doi.org/10.1080/00071668.2025.2494601","url":null,"abstract":"1. Infections due to Campylobacter spp. significantly contribute to bacterial gastroenteritis worldwide. This study aimed to investigate whether Campylobacter spp. can persist in poultry environments and how they survive in various sources from poultry farms and slaughterhouses.2. A total of 192 samples were collected from three different poultry farms and slaughterhouses and C. jejuni was detected in 47.4% of them. The prevalence of C. jejuni was higher in poultry slaughterhouses than in farms. A total of 69 C. jejuni were tested for their susceptibility to different antibiotics. From these 15 isolates from poultry farms and slaughterhouses, 50-70% exhibited antibiotic resistance. These isolates were analysed for plasmid profiling, identification of virulence genes and lipo-oligosaccharide characterisation.3. Nearly all C. jejuni isolates harboured plasmid sizes ranging from 2.3 to 23 kb. The virB11 gene of C. jejuni was characterised using PCR and there was no gene amplification in the isolated strains. All multidrug-resistant (MDR) isolates from poultry farms and slaughterhouses had full-length lipo-oligosaccharide molecules, based on their molecular weight.4. The MDR strain C. jejuni (LCJ5) was chosen for its survival rate from various sources, including lamb, chicken meat and eggs, as well as in the slaughterhouse environment, which contains materials like stainless steel, iron and wood. The findings suggested that the prevalence of Campylobacter can be reduced through improved hygiene practices and by raising awareness about the importance of consuming properly cooked meat products.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-11"},"PeriodicalIF":1.6,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144109713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The use of golden mussel meal of different particle sizes to feed broiler chickens aged 1-42 days. 用不同粒径的金贻贝粉饲喂1 ~ 42日龄肉鸡。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-05-19 DOI: 10.1080/00071668.2025.2494599

D Jablonski, M S D Pavlak, A P Guimarães Cruz Costa, N Rohloff Junior, C Eyng, P C Pozza, J G de Vargas Junior, A A Calderano, B S Vieira, R A Bombardelli, L Castilha, G Silva Tesser, R V Nunes

{"title":"The use of golden mussel meal of different particle sizes to feed broiler chickens aged 1-42 days.","authors":"D Jablonski, M S D Pavlak, A P Guimarães Cruz Costa, N Rohloff Junior, C Eyng, P C Pozza, J G de Vargas Junior, A A Calderano, B S Vieira, R A Bombardelli, L Castilha, G Silva Tesser, R V Nunes","doi":"10.1080/00071668.2025.2494599","DOIUrl":"https://doi.org/10.1080/00071668.2025.2494599","url":null,"abstract":"1. This study evaluated the inclusion of golden mussel meal (GMM) of varying particle sizes in broiler chicken diets on performance, bone variables, serum biochemistry and gene expression.2. Male Cobb 500 broiler chicks (n = 900) were distributed in a completely randomised design, comprising five treatments, 10 replicate pens and 18 birds per pen, aged from 1 to 42 d.3. The treatments consisted of a control diet (calcite limestone 376 μm) and treatments GMM 299, 375, 436 and 551 μm.4. From 1 to 21 d of age, GMM 375 μm improved body weight gain (p = 0.041), while GMM 551 μm increased feed conversion ratio (p = 0.009). At 40 d of age, GMM 436 μm increased the serum aspartate aminotransferase level (p = 0.046).5. At 21 d of age, the tibial Seedor index was increased in the broilers fed GMM 375 μm (p = 0.044). The femoral mineral matter (MM) content was increased in the broilers fed GMM 375 (p = 0.047). Tibial MM content was increased in the broilers fed GMM 551 μm (p = 0.047). At 40 d of age, MM content was increased in the broilers fed GMM 375 μm (p = 0.027). Femoral calcium content was reduced in the broilers fed GMM 299, 436 and 551 μm (p = 0.004) and the tibial phosphorus content was increased in the broilers fed GMM 375 μm (p = 0.003).6. In conclusion, limestone can be replaced with GMM of different particle sizes to feed broilers from 1 to 42 d of age.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-9"},"PeriodicalIF":1.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144092830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of functional flavour enhancers from waste chicken skin. 废鸡皮功能性增味剂的研制。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-05-14 DOI: 10.1080/00071668.2025.2494596

C O Özer, E Demir Özer, K Şen, G B Var

引用次数: 0

Residue of Erycibe obtusifolia Benth as bedding materials improves welfare and microorganisms of chickens. 丹参渣作为垫料可改善鸡的福利和微生物群。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-05-14 DOI: 10.1080/00071668.2025.2489061

L Zhao, Y Li, D Zheng, B Wu, G Hu, S Chen

{"title":"Residue of Erycibe obtusifolia Benth as bedding materials improves welfare and microorganisms of chickens.","authors":"L Zhao, Y Li, D Zheng, B Wu, G Hu, S Chen","doi":"10.1080/00071668.2025.2489061","DOIUrl":"https://doi.org/10.1080/00071668.2025.2489061","url":null,"abstract":"1. This study investigated the effect of Erycibe obtusifolia Benth (EOB) plant residue on welfare, stress-related gene expression as well as microorganisms of both the gut and bedding materials of chickens.2. In this study, a total of 160, bearded chickens aged 80 d old were raised on four bedding types: EOB, rice husk (RH), EOB and RH bedding (EOB E) and EOB plus Enterococcus faecalis fermented bedding (RHEOB). Twelve behaviours, foot pad dermatitis and feather condition of each group were observed, caecal contents and bedding material were collected for microorganisms detection and brain tissues were collected for gene expression related to fear, stress and aggressive behaviour.3. Bedding had no effect on foot pad dermatitis (FPD), feather condition or abnormal behaviour. Sand bathing (p <0.05) and affinity behaviour (p <0.05) increased in birds on the EOB with rice husk bedding material. The expressions of 5-HT, HTR1A and CRH genes in brain tissue were affected by different bedding types. The mixture of EOB and rice husk reduced the relative abundance of Brevibacterium, Enterococcus and Streptococcus spp. increased the relative abundance of probiotics of Rombutz, Lactobacillus spp. and L. mucosus and improved the microflora of the bedding and caecal contents.4. EOB bedding showed good application, as EOB and rice husk mixed bedding had the best effect.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-11"},"PeriodicalIF":1.6,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144076086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0