British Poultry Science最新文献

Substitution of soybean meal with extruded rapeseed meal improves growth performance, slaughter performance and digestive function in Langshan chickens. 用挤压菜籽粕替代豆粕提高了崀山鸡的生长性能、屠宰性能和消化功能。

IF 1.7 3区农林科学

British Poultry Science Pub Date : 2026-04-27 DOI: 10.1080/00071668.2026.2659639

J Yang, L Zhang, L Zhao, T Xing, F Gao

{"title":"Substitution of soybean meal with extruded rapeseed meal improves growth performance, slaughter performance and digestive function in Langshan chickens.","authors":"J Yang, L Zhang, L Zhao, T Xing, F Gao","doi":"10.1080/00071668.2026.2659639","DOIUrl":"https://doi.org/10.1080/00071668.2026.2659639","url":null,"abstract":"1. This study evaluated the effects of replacing soybean meal (SBM) with extruded rapeseed meal (RSM) on growth performance, meat quality and digestive function in local Chinese Langshan chickens.2. A total of 192, 30-day-old male chickens with similar body weight were randomly divided into four dietary treatments: control group (CON) fed a maize-soybean meal basal diet, 10% replacement of SBM with RSM (10% RSM), 10% replacement with extruded RSM (10% ERSM) and 20% replacement with extruded RSM (20% ERSM). The experiment consisted of two phases (30-51 and 52-72 d of age) with sample collection at each phase.3. The results demonstrated that, compared with CON, the birds fed 10% RSM had significantly lower eviscerated carcass and breast muscle yields at 72 d of age (p < 0.05). The 10% ERSM diet gave significantly higher weight gain, eviscerated yield and better FCR at 51 d of age (p < 0.05). The 20% ERSM birds had significantly improved daily weight gain and eviscerated yield at 51 d of age and increased villi height at 72 d of age (p < 0.05). Compared with 10% RSM, the birds fed 10% ERSM had significantly enhanced weight gain, thigh muscle yield, crude protein digestibility, jejunal enzyme activities, villi heights and lower FCR (p < 0.05) at 51 d of age. The 20% ERSM birds had significantly increased feed intake and villi heights at 51 d of age. Relative to birds fed 10% ERSM, the 20% ERSM group had elevated serum aspartate transaminase at 72 d (p < 0.05).4. Feeding the 10% RSM diets negatively affected slaughter yields, whereas both 10% ERSM and 20% ERSM treatments improved growth performance, slaughter performance and digestive function in Langshan chickens aged 51 d.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-10"},"PeriodicalIF":1.7,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147763340","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 carbohydrase supplementation on growth performance and estimated energy equivalence in broilers fed reduced-energy diets. 饲粮中添加糖酶对低能肉鸡生长性能和能量当量的影响。

IF 1.7 3区农林科学

British Poultry Science Pub Date : 2026-04-24 DOI: 10.1080/00071668.2026.2662308

E D da Silva, J K Valentim, C H de Oliveira, K M Maia Dias, K M Gomes, A M Ribeiro, R D Bernardes, R A R de Léo, W C Fernandes, L F T Albino

{"title":"Effects of carbohydrase supplementation on growth performance and estimated energy equivalence in broilers fed reduced-energy diets.","authors":"E D da Silva, J K Valentim, C H de Oliveira, K M Maia Dias, K M Gomes, A M Ribeiro, R D Bernardes, R A R de Léo, W C Fernandes, L F T Albino","doi":"10.1080/00071668.2026.2662308","DOIUrl":"https://doi.org/10.1080/00071668.2026.2662308","url":null,"abstract":"1. This study evaluated carbohydrase supplementation on growth performance, metabolisable energy (ME) equivalence and body composition of broilers fed reduced-energy diets. A total of 1440 eight-day-old male Cobb 500 broilers were distributed in a completely randomised design with eight dietary treatments, nine replicates and 20 birds per replicate. Treatments consisted of a positive control (PC) diet meeting ME requirements, a negative control (NC) diet (with a reduction of 180 kcal/kg ME) and six (NC) diets supplemented with different carbohydrase complexes containing xylanase and β-glucanase (CBH1-6 at commercial inclusion levels).2. Performance was evaluated at 21 and 35 d of age as body weight (BW), body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR). ME equivalence was estimated using regression equations from diets with graded ME levels and body composition was measured by dual-energy X-ray absorptiometry.3. Broilers fed the NC diet had lower BWG (0.84 vs. 0.90 kg; p ≤ 0.001) and BW at 21 d (1.09 vs. 1.14 kg; p ≤ 0.001) compared with the PC. Supplementation with CBH3 restored BW and BWG to values similar to PC in the starter phase and resulted in the highest estimated ME equivalence (106.9 kcal/kg in the starter phase and 36.5 kcal/kg overall), followed by CBH6 (40.2 and 12.3 kcal/kg).4. Feed intake increased only in NC+CBH3 (p ≤ 0.001), whereas FCR remained higher than PC in most treatments (p ≤ 0.005). No consistent effects were observed on lean tissue or bone mineral content, although fat was reduced in specific treatments (p ≤ 0.05).5. Carbohydrase supplementation partially alleviated the effects of ME reduction, with responses depending on enzyme complex and production phase.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-7"},"PeriodicalIF":1.7,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147763263","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

A slow-growth model for fast-growing broilers: effects on breast meat quality and myopathy incidence. 快速生长肉鸡慢生长模型：对胸肉品质和肌病发病率的影响。

IF 1.7 3区农林科学

British Poultry Science Pub Date : 2026-04-24 DOI: 10.1080/00071668.2026.2659637

G Güngören, Ü G Şimşek, A Güngören, R Yilmaz, Ö Otlu

{"title":"A slow-growth model for fast-growing broilers: effects on breast meat quality and myopathy incidence.","authors":"G Güngören, Ü G Şimşek, A Güngören, R Yilmaz, Ö Otlu","doi":"10.1080/00071668.2026.2659637","DOIUrl":"https://doi.org/10.1080/00071668.2026.2659637","url":null,"abstract":"1. This study evaluated the effects of a biologically calibrated pair-feeding model on breast meat yield, quality traits, biochemical markers and pectoral myopathy (PM) incidence in different broiler genotypes.2. Fast-growing Ross 308 and Cobb 500 breeds were pair-fed according to the voluntary intake of a slow-growing strain (Hubbard Red JA) to moderate growth trajectory. A total of 300 broilers were allocated to ad libitum or pair-fed groups. Birds were slaughtered at comparable target live weights. Breast muscle yield, proximate composition, pH, colour (L*, a*, b*), water-holding capacity (WHC), cooking loss (CL), serum creatine kinase (CK), lactate dehydrogenase (LDH), calcium (Ca2+), malondialdehyde (MDA) and histopathological lesion scores were evaluated.3. Pair-feeding significantly reduced breast muscle weight in Ross 308 and Cobb 500 (p < 0.001). In Ross birds, pair-feeding lowered CK (p < 0.001), LDH (p < 0.001) and Ca2+ (p = 0.046) concentrations and significantly reduced myodegeneration, fibrosis, infiltration and total myopathy scores (p < 0.001). Cobb birds had reduced CK (p = 0.014) and LDH (p < 0.001) but showed limited histopathological improvement (p > 0.05).4. Pair-feeding increased lightness (L*) and decreased redness (a*) values at early post-mortem measurements (p < 0.001), while effects on ultimate pH (p = 0.003 in Ross) and WHC (p < 0.001 in Ross) were modest and genotype-dependent. Cooking losses were significantly decreased in both Ross (p < 0.001) and Hubbard strains (p < 0.001).5. These findings suggested that pair-feeding based on slow-growing intake patterns can partially mitigate PM incidence and improve selected meat quality traits in fast-growing broilers, particularly Ross 308. However, genotype-specific responses indicated that growth-moderating strategies should be tailored to genetic background.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-10"},"PeriodicalIF":1.7,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147763328","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

Field study using sentinel birds and ELISA for differentiating infected from vaccinated animals (DIVA) in chicken flocks vaccinated with inactivated avian influenza H5 vaccines. 使用哨岗鸟和ELISA对接种灭活禽流感H5疫苗的鸡群进行区分感染动物和接种动物（DIVA）的实地研究。

IF 1.7 3区农林科学

British Poultry Science Pub Date : 2026-04-13 DOI: 10.1080/00071668.2026.2645007

M Ibrahim, D Mostafa, E A Manie, A A El-Sanousi, M Shaheen

{"title":"Field study using sentinel birds and ELISA for differentiating infected from vaccinated animals (DIVA) in chicken flocks vaccinated with inactivated avian influenza H5 vaccines.","authors":"M Ibrahim, D Mostafa, E A Manie, A A El-Sanousi, M Shaheen","doi":"10.1080/00071668.2026.2645007","DOIUrl":"https://doi.org/10.1080/00071668.2026.2645007","url":null,"abstract":"1. This study used unvaccinated sentinels plus Avian Influenza Virus (AIV) specific ELISA for differentiating infected from vaccinated animals (DIVA). Birds assessed were from 10 broiler flocks (F1-F10), three layer (F11-F13) and two breeder flocks (F14 and F15) vaccinated with inactivated whole virus H5 vaccines. These 'sentinels' were monitored for clinical signs, mortality and post-mortem (PM) lesions specific for HPAI H5 virus infection. Seroconversion was measured by HI assay and virologically monitored by real-time PCR testing. The AIV antibody ELISA kit (IDEXX AI AB kit) was evaluated as a possible DIVA tool in these chicken flocks by testing the vaccinated birds only.2. Three broiler flocks (F3, F6 and F7) and one layer flock (F11) were infected by highly pathogenic avian influenza virus (HPAIV) H5N1. This was observed by sudden deaths and high mortality with pathognomonic clinical signs and PM lesions which confirmed by molecular testing. Sentinel birds in H5N1 infected flocks showed positive HI titres ~3 ×log2 in the majority of tested birds while noninfected sentinels showed negative results.3. Broiler flocks exposed to H5N1 infection (F3, F6 and F7) showed positive ELISA titres (at least 75%), while, noninfected broiler flocks showed negative results. This indicated that, even without using sentinels, ELISA kits for AIV M and NP could be used as a DIVA tool. However, flocks vaccinated with H5 inactivated whole virus vaccines showed negative ELISA titres at 30 d old after single vaccination, while after booster dose(s), positive ELISA titres were observed.4. The trial demonstrated the unsuitability of ELISA kits for influenza A as DIVA tool in flocks vaccinated several times like layer and breeder flocks. However, sentinel birds could be considered as possible DIVA strategy for longer-lived birds, such as layer and breeder flocks.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-8"},"PeriodicalIF":1.7,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147670752","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

Characterisation of Shh gene expression in the skin and feather follicles of Jilin white geese during early embryonic development. 吉林白鹅早期胚胎发育过程中皮肤和羽毛毛囊Shh基因的表达特征

IF 1.7 3区农林科学

British Poultry Science Pub Date : 2026-04-13 DOI: 10.1080/00071668.2026.2641533

X Li, G Xue, M Ichraf, Y Zhou, Y Song, J Ma, J Wang, H Pan, C Ru, K Zhu, Y Sun

{"title":"Characterisation of Shh gene expression in the skin and feather follicles of Jilin white geese during early embryonic development.","authors":"X Li, G Xue, M Ichraf, Y Zhou, Y Song, J Ma, J Wang, H Pan, C Ru, K Zhu, Y Sun","doi":"10.1080/00071668.2026.2641533","DOIUrl":"https://doi.org/10.1080/00071668.2026.2641533","url":null,"abstract":"1. The Sonic Hedgehog (Shh) gene expresses a highly conserved signalling molecule essential for cell-to-cell communication, which regulates key biological processes, such as embryonic development (as embryo days; ED) and organogenesis. Although feathering is a critical aspect of skin development in poultry, particularly in Chinese indigenous breeds such as the Jilin white goose, its molecular mechanisms remain poorly understood.2. In this study, 150 fertilised Jilin white goose eggs were analysed to investigate embryonic skin morphological changes. Immunohistochemistry (IHC) was applied to determine the localisation of Shh protein, while qPCR and Western blotting were conducted to examine the temporal dynamics of mRNA and protein expression.3. The results revealed that Shh mRNA expression increased initially and then declined between ED8 and ED13, with the highest level observed at ED12. In contrast, Shh protein expression demonstrated a biphasic rise with an intervening decline, peaking at ED9.4. In vitro skin tissue culture experiments indicated that Shh may contribute to feather bud initiation and development by modulating the WNT signalling pathway.5. This study elucidated the temporal and spatial expression patterns of Shh and its interaction with the WNT signalling pathway during early embryonic skin development in Jilin white geese.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-9"},"PeriodicalIF":1.7,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147670587","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

Repurposing advanced DMEM/F-12 cell culture medium to mitigate glycerol toxicity in poultry semen. 改良DMEM/F-12细胞培养基对家禽精液甘油毒性的影响

IF 1.7 3区农林科学

British Poultry Science Pub Date : 2026-04-13 DOI: 10.1080/00071668.2026.2647354

H-L H Lin, F-H Chu, P-C Chen, S-C Yen, H-W Hung, B-L Shih, Y-H Chen, M-Y Tsai

{"title":"Repurposing advanced DMEM/F-12 cell culture medium to mitigate glycerol toxicity in poultry semen.","authors":"H-L H Lin, F-H Chu, P-C Chen, S-C Yen, H-W Hung, B-L Shih, Y-H Chen, M-Y Tsai","doi":"10.1080/00071668.2026.2647354","DOIUrl":"https://doi.org/10.1080/00071668.2026.2647354","url":null,"abstract":"1. Glycerol is the standard cryoprotectant for avian sperm, yet adding 2% reduces chicken fertility by half. Sperm co-cultured with sperm storage tubules in advanced DMEM/F-12 (adDF12) medium decreased glycerol damage. The following study tested whether adDF12 itself protects sperm from glycerol toxicity compared to conventional Lake PC (LPC) extender.2. Pooled rooster semen was diluted in either LPC or adDF12 with 2% glycerol. Fertility was assessed via artificial insemination (100 × 106 sperm per hen, n = 10 per group). Sperm motility, membrane integrity and mitochondrial activity were evaluated at 4°C and 41°C using computer-assisted analysis and flow cytometry.3. Using adDF12 achieved 56.6% fertility versus 36.3% with LPC, a 55.9% improvement (p = 0.012). This protection operated through enhanced sperm motility at 41°C, total motility increased from 55.2% to 64.9% (p = 0.044) and progressive motility increased from 19.5% to 33.2%. No differences were seen at 4°C. Membrane integrity and mitochondrial activity remained unchanged across treatments.4. The selective motility enhancement seen without mitochondrial changes suggested that adDF12 supported glycolytic rather than oxidative metabolism. Using adDF12 provided glucose (17.5 mM), pyruvate (0.5 mM) and 21 amino acids, substrates largely absent in LPC, which likely enabled flexible ATP generation under glycerol stress.5. These findings established adDF12 as a potential post-thaw resuspension medium for cryopreserved avian semen, directly supporting genetic conservation programmes.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-7"},"PeriodicalIF":1.7,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147670667","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

Wnt/β-catenin activation in response to STAT3 inhibition is required for embryonic feather follicle development in Jilin white geese (Anser cygnoides). Wnt/β-catenin激活响应STAT3抑制是吉林白鹅胚胎羽毛卵泡发育所必需的。

IF 1.7 3区农林科学

British Poultry Science Pub Date : 2026-04-13 DOI: 10.1080/00071668.2026.2647349

J Wang, H Pan, X Hu, X Zhang, Y Zhou, Y Wang, J Hou, Z Yang, F Liu, Y Sun

{"title":"Wnt/β-catenin activation in response to STAT3 inhibition is required for embryonic feather follicle development in Jilin white geese (Anser cygnoides).","authors":"J Wang, H Pan, X Hu, X Zhang, Y Zhou, Y Wang, J Hou, Z Yang, F Liu, Y Sun","doi":"10.1080/00071668.2026.2647349","DOIUrl":"https://doi.org/10.1080/00071668.2026.2647349","url":null,"abstract":"1. The correct development of follicles is essential for feather quality in geese, yet the role of STAT3 in feather follicle formation during geese embryogenesis remains unclear.2. In this study, 140 Jilin White Goose (Anser cygnoides) embryos were used as the experimental subjects. Feather follicle morphology at different developmental stages was examined using H&E staining and STAT3 expression was assessed by RT-qPCR and Western blotting. Building on these observations, an in ovo injection experiment was performed at embryo day (ED)18 and an ex vivo skin-culture system was established at ED23.3. The STAT3 gene expression peaked at ED23, coinciding with a critical phase of feather follicle structural maturation. Following Stattic treatment, both STAT3 and phosphorylated STAT3 (p-STAT3) levels were markedly reduced, whereas the Wnt/β-catenin signalling genes β-cateninand LEF1 were up-regulated. This suggested that STAT3 may function as a negative regulator of this pathway.4. The ex vivo culture assay showed increased expression of PCNA and Bcl-2 and reduced Caspase-3. This showed that STAT3 gene inhibition promotes cell proliferation and suppresses apoptosis. These findings supported a regulatory role of STAT3 in feather follicle development.5. The STAT3 gene serves as an important regulatory factor in feather follicle formation during goose embryonic development.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-9"},"PeriodicalIF":1.7,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147670717","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

Dietary supplementation combining apo-carotenoid acid ester and canthaxanthin can counteract any decline in egg albumen quality. 膳食中添加类胡萝卜素酸酯和角黄素可以抵消鸡蛋蛋白质量的下降。

IF 1.7 3区农林科学

British Poultry Science Pub Date : 2026-04-08 DOI: 10.1080/00071668.2026.2634793

M Bozkurt, Y Ögmen, A Ö Üstündağ

{"title":"Dietary supplementation combining apo-carotenoid acid ester and canthaxanthin can counteract any decline in egg albumen quality.","authors":"M Bozkurt, Y Ögmen, A Ö Üstündağ","doi":"10.1080/00071668.2026.2634793","DOIUrl":"https://doi.org/10.1080/00071668.2026.2634793","url":null,"abstract":"1. The utilisation of carotenoids in hen diets can be inversely related to the dietary fibre content. The influence of dietary crude fibre level (CFL) and carotenoid supplementation (CRS) on laying and egg quality was studied in commercial layer hens from 51 to 60 weeks of age. The CRS was included as a blend of 0.5 mg of apo-carotenoid acid ester and 2.5 mg of canthaxanthin per kg of diet.2. The experimental design was a 2 × 2 factorial with two CFL (5.2% vs. 6.5%) and CRS levels (a basal diet with or without CRS). A total of 240 Hisex Brown laying hens were randomly assigned to one of the four treatment groups, with six replicates of 10 hens each.3. Laying performance and serum concentrations of triglyceride, cholesterol, carotenoid, malondialdehyde, superoxide dismutase and glutathione peroxidase were not significantly influenced by CFL and CRS.4. An increase in CFL reduced egg yolk index by 3.5% (p < 0.01) and increased eggshell thickness by 3.0% (p < 0.01). Supplementing feed with CRS caused a 5.1% decrease (p < 0.05) in eggshell breaking strength, while yolk index showed a positive response with a 2.6% increase (p < 0.01).5. Both CFL and CRS interacted (p < 0.01) on the albumen index, whereby CRS improved albumen index by 12% in hens fed a diet containing 6.5% CFL, whereas only a 3% increase was observed when CRS when CFL was added at 2%.6. The link between dietary fibre, carotenoid utilisation and internal egg quality highlighted the importance of considering the beneficial effects of supplemental carotenoids on albumen quality when increasing CFL above 6%. This can help address current concerns about the increase in fibre content in hen diets.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-10"},"PeriodicalIF":1.7,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147632337","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 transportation on body weight loss, renal morphology and acid-base balance in broilers. 运输对肉仔鸡体重减轻、肾脏形态和酸碱平衡的影响。

IF 1.7 3区农林科学

British Poultry Science Pub Date : 2026-04-01 Epub Date: 2025-08-15 DOI: 10.1080/00071668.2025.2528242

C Phonrit, T Homsombat, N Surarit, T Ishikawa, P Kusolrat, W Aengwanich

{"title":"Effects of transportation on body weight loss, renal morphology and acid-base balance in broilers.","authors":"C Phonrit, T Homsombat, N Surarit, T Ishikawa, P Kusolrat, W Aengwanich","doi":"10.1080/00071668.2025.2528242","DOIUrl":"10.1080/00071668.2025.2528242","url":null,"abstract":"1. Transport under thermoneutral conditions may affect body weight, physiological and biochemical variables, electrolyte balance, acid-base status and renal function in broilers. Therefore, this study investigated how different transport distances affect body weight loss, physiological changes, oxidative stress, electrolyte levels and renal responses in broilers.2. Fifty broilers were randomly divided into five groups and transported over distances of 0, 50, 100, 150 or 200 km. Body weight, physiological and biochemical variables, blood electrolytes, acid-base balance and renal changes were measured.3. Broilers transported for 200 km had significantly more body weight loss than those transported for 0 and 50 km (p < 0.05). Respiratory rate significantly increased at 50 km (p < 0.05) and blood sodium was higher at 150 and 200 km than at 0 km (p < 0.05). Blood pH was lowest at 0 km, while bicarbonate was lowest at 200 km (p < 0.05).4. Kidney congestion score increased with distance, with the highest score at 200 km (p < 0.05). Scores for 0 and 50 km transport were significantly lower than those at 100, 150 and 200 km (p < 0.05). Renal tubular dilation scores were significantly higher at 50 and 150 km than at 0, 100 and 200 km (p < 0.05).5. These results demonstrated that transportation, even under thermoneutral conditions, can still induce alterations in physiological and renal functions in broilers. Longer transport distances exacerbate these effects, underscoring the need for improved methods to reduce stress and support broiler welfare.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"265-275"},"PeriodicalIF":1.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144854644","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

An acoustic signal-to-image conversion integrated convolutional neural network model for egg crack detection. 一种用于鸡蛋裂纹检测的声信号-图像转换集成卷积神经网络模型。

IF 1.7 3区农林科学

British Poultry Science Pub Date : 2026-04-01 Epub Date: 2025-09-15 DOI: 10.1080/00071668.2025.2549548

Z Balcı, I Yabanova, A Mert

{"title":"An acoustic signal-to-image conversion integrated convolutional neural network model for egg crack detection.","authors":"Z Balcı, I Yabanova, A Mert","doi":"10.1080/00071668.2025.2549548","DOIUrl":"10.1080/00071668.2025.2549548","url":null,"abstract":"1. The presence of fractures or cracks in eggshells represent a significant risk in terms of food safety. Bacteria and viruses are likely to enter through these cracks, which increases the risk of food poisoning. Furthermore, deformations in the shell can compromise the integrity of the protective shell, rendering the egg more susceptible to environmental damage and accelerating deterioration.2. In order to mitigate these risks, a convolutional neural network (CNN) integrated into an acoustic signal to image conversion was developed as a crack detection system. Mechanical and electronic sub-systems were designed to generate non-destructive acoustic excitation on the eggshell and capture the resulting sound with a high-sensitivity microphone.3. The recorded 1 × 731-sample signals from 120 intact or cracked eggs were subjected to variational mode decomposition (VMD) to extract intrinsic mode functions (IMF). Subsequently, IMF were converted to greyscale images and classified using the proposed acoustic signal-to-image conversion and the lightweight CNN.4. The proposed model showed the capability (100%) to distinguish between intact and cracked eggs, including invisible micro-cracks.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"224-232"},"PeriodicalIF":1.7,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145063497","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