The pH of pre-enrichment media containing feed/ingredients can become acidic during incubation due to bacterial utilization of feed carbohydrates. This decrease in pH can result in cell injury or death, negatively impacting the detection of Salmonella. Our objective was to evaluate a new triple buffered peptone (TBP) against buffered peptone water (BPW) and lactose broth (LB) for the recovery of Salmonella from feed. Liquid cultures of nalidixic acid resistant strains of Salmonella (Enteritidis, Heidelberg, Kentucky or Typhimurium) were added to the pre-enrichment media alone, to pre-enrichment media containing feed or to artificially inoculated feed stored 1 or 7 d to evaluate the effect of the medium on the recovery of Salmonella. Three replicates per treatment were conducted. After incubation at 37 °C for 24 h, the pH of the medium was measured prior to plating onto brilliant green sulfa agar plates supplemented with 200 ppm nalidixic acid (BGSNA). Plates were incubated and evaluated for presence of typical Salmonella colonies. The experiment was replicated. TBP was observed to exhibit significantly better buffering capacity than BPW or LB. Additionally, TBP was able to recover Salmonella 100% of the time compared to BPW (97.9%) and LB (61.5%). TBP shows promise to maintain neutral pH during pre-enrichment which may allow for a more accurate detection of Salmonella in feed.
{"title":"Evaluation of a Triple Buffered Peptone Broth for Detection of Salmonella in Broiler Feed","authors":"D. Cosby, M. Berrang, A. Hinton","doi":"10.3390/poultry2010006","DOIUrl":"https://doi.org/10.3390/poultry2010006","url":null,"abstract":"The pH of pre-enrichment media containing feed/ingredients can become acidic during incubation due to bacterial utilization of feed carbohydrates. This decrease in pH can result in cell injury or death, negatively impacting the detection of Salmonella. Our objective was to evaluate a new triple buffered peptone (TBP) against buffered peptone water (BPW) and lactose broth (LB) for the recovery of Salmonella from feed. Liquid cultures of nalidixic acid resistant strains of Salmonella (Enteritidis, Heidelberg, Kentucky or Typhimurium) were added to the pre-enrichment media alone, to pre-enrichment media containing feed or to artificially inoculated feed stored 1 or 7 d to evaluate the effect of the medium on the recovery of Salmonella. Three replicates per treatment were conducted. After incubation at 37 °C for 24 h, the pH of the medium was measured prior to plating onto brilliant green sulfa agar plates supplemented with 200 ppm nalidixic acid (BGSNA). Plates were incubated and evaluated for presence of typical Salmonella colonies. The experiment was replicated. TBP was observed to exhibit significantly better buffering capacity than BPW or LB. Additionally, TBP was able to recover Salmonella 100% of the time compared to BPW (97.9%) and LB (61.5%). TBP shows promise to maintain neutral pH during pre-enrichment which may allow for a more accurate detection of Salmonella in feed.","PeriodicalId":24003,"journal":{"name":"World's Poultry Science Journal","volume":"39 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74100670","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}
G. Chaloner, L. Lacharme-Lora, A. Wedley, P. Wigley
There is growing pressure to find a way to eradicate or reduce the levels of foodborne pathogens such as Campylobacter in broiler chickens, whilst limiting the use of antimicrobials. For Campylobacter, there is currently no vaccine and on-farm biosecurity alone is insufficient to prevent colonization of broiler chicken flocks. Dipteran flies are proven carriers of Campylobacter and their entry into broiler houses may contribute to its transmission to broiler chickens. As there is currently no experimental vector transmission model for Campylobacter and chickens, we decided to examine experimentally whether Galleria mellonella could be used as vector to transmit Campylobacter to broiler chickens. More recently, the use of live insect feed has been proposed both for its nutritional qualities and improving bird welfare through the encouragement of natural foraging behaviours and it is unclear any risk this poses in terms of pathogen transmission. In this study, day-old chicks (n = 29) were obtained from a commercial hatchery. At three weeks of age, birds were split into 4 This groups; Group 1 was infected via oral gavage with 106 cells of C. jejuni-M1, Group 2 was fed Galleria mellonella infected with 106 cells of C. jejuni-M1, Group 3 was fed uninfected Galleria mellonella, whilst the remaining group was unchallenged. Cloacal swabs were taken at 2, 4, and 6 days post-infection (dpi) to follow transmission and at 8 dpi birds culled and C. jejuni load quantified in the caeca and liver. At 8 dpi, all birds in both the Campylobacter gavage group and those in the group fed the Campylobacter infected Galleria mellonella were Campylobacter positive, whereas those fed uninfected Galleria mellonella and the control group were all Campylobacter negative. The mean caecal Campylobacter load in the Campylobacter gavage group was 1.7 × 1010 per gram compared with 8.6 × 109 in the group fed the Campylobacter-infected Galleria mellonella. No liver positives were found in any of the groups. Our findings indicate that feeding broiler chickens with the vector Galleria mellonella infected with C. jejuni-M1 is sufficient to establish colonisation with C. jejuni. We propose that Galleria can be used as an easy and flexible model for vector transmission of foodborne pathogens in chicken.
{"title":"Use of Galleria mellonella as a Model for Insect Vector Transmission of the Foodborne Pathogen Campylobacter jejuni in Broiler Chickens: A Pilot Study","authors":"G. Chaloner, L. Lacharme-Lora, A. Wedley, P. Wigley","doi":"10.3390/poultry2010005","DOIUrl":"https://doi.org/10.3390/poultry2010005","url":null,"abstract":"There is growing pressure to find a way to eradicate or reduce the levels of foodborne pathogens such as Campylobacter in broiler chickens, whilst limiting the use of antimicrobials. For Campylobacter, there is currently no vaccine and on-farm biosecurity alone is insufficient to prevent colonization of broiler chicken flocks. Dipteran flies are proven carriers of Campylobacter and their entry into broiler houses may contribute to its transmission to broiler chickens. As there is currently no experimental vector transmission model for Campylobacter and chickens, we decided to examine experimentally whether Galleria mellonella could be used as vector to transmit Campylobacter to broiler chickens. More recently, the use of live insect feed has been proposed both for its nutritional qualities and improving bird welfare through the encouragement of natural foraging behaviours and it is unclear any risk this poses in terms of pathogen transmission. In this study, day-old chicks (n = 29) were obtained from a commercial hatchery. At three weeks of age, birds were split into 4 This groups; Group 1 was infected via oral gavage with 106 cells of C. jejuni-M1, Group 2 was fed Galleria mellonella infected with 106 cells of C. jejuni-M1, Group 3 was fed uninfected Galleria mellonella, whilst the remaining group was unchallenged. Cloacal swabs were taken at 2, 4, and 6 days post-infection (dpi) to follow transmission and at 8 dpi birds culled and C. jejuni load quantified in the caeca and liver. At 8 dpi, all birds in both the Campylobacter gavage group and those in the group fed the Campylobacter infected Galleria mellonella were Campylobacter positive, whereas those fed uninfected Galleria mellonella and the control group were all Campylobacter negative. The mean caecal Campylobacter load in the Campylobacter gavage group was 1.7 × 1010 per gram compared with 8.6 × 109 in the group fed the Campylobacter-infected Galleria mellonella. No liver positives were found in any of the groups. Our findings indicate that feeding broiler chickens with the vector Galleria mellonella infected with C. jejuni-M1 is sufficient to establish colonisation with C. jejuni. We propose that Galleria can be used as an easy and flexible model for vector transmission of foodborne pathogens in chicken.","PeriodicalId":24003,"journal":{"name":"World's Poultry Science Journal","volume":"25 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82069802","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}
Jiddu Joseph, Madalyn Jennings, N. Barbieri, Li Zhang, P. Adhikari, Reshma Ramachandran
Avian pathogenic Escherichia coli (APEC) causes colibacillosis in poultry, a leading cause of poultry mortality worldwide. It is crucial to control APEC in broiler breeders as it is vertically transferred to progeny via eggs. However, there is only limited knowledge on the current APEC population in breeders. This study characterized 28 APEC strains isolated from broiler breeders with colibacillosis. The genotypic-virulence characteristics as well as antimicrobial and heavy-metal resistance patterns of the isolates were determined. Results showed that O88 is the most prevalent serogroup and B2 is the predominant phylogenetic group. Among virulence genes, genes for iron acquisition (iroN and iutA), protectins (iss and ompT), and toxin production (hlyF) exhibited the highest prevalence. Further, 93% of the isolates carried at least one antimicrobial resistance gene with highest prevalence for tetracycline gene tetA. Among the isolates, 10.71% exhibited multidrug resistance. All isolates carried at least one heavy-metal resistance gene with the highest prevalence for arsenic gene arsC and the highest resistance towards silver. Our findings provide insight into the characteristics of current APEC populations in broiler breeders in Mississippi. This will help future research on the pathogenesis of APEC and the development of effective prevention and control strategies against APEC in broiler breeders.
{"title":"Characterization of Avian Pathogenic Escherichia coli Isolated from Broiler Breeders with Colibacillosis in Mississippi","authors":"Jiddu Joseph, Madalyn Jennings, N. Barbieri, Li Zhang, P. Adhikari, Reshma Ramachandran","doi":"10.3390/poultry2010004","DOIUrl":"https://doi.org/10.3390/poultry2010004","url":null,"abstract":"Avian pathogenic Escherichia coli (APEC) causes colibacillosis in poultry, a leading cause of poultry mortality worldwide. It is crucial to control APEC in broiler breeders as it is vertically transferred to progeny via eggs. However, there is only limited knowledge on the current APEC population in breeders. This study characterized 28 APEC strains isolated from broiler breeders with colibacillosis. The genotypic-virulence characteristics as well as antimicrobial and heavy-metal resistance patterns of the isolates were determined. Results showed that O88 is the most prevalent serogroup and B2 is the predominant phylogenetic group. Among virulence genes, genes for iron acquisition (iroN and iutA), protectins (iss and ompT), and toxin production (hlyF) exhibited the highest prevalence. Further, 93% of the isolates carried at least one antimicrobial resistance gene with highest prevalence for tetracycline gene tetA. Among the isolates, 10.71% exhibited multidrug resistance. All isolates carried at least one heavy-metal resistance gene with the highest prevalence for arsenic gene arsC and the highest resistance towards silver. Our findings provide insight into the characteristics of current APEC populations in broiler breeders in Mississippi. This will help future research on the pathogenesis of APEC and the development of effective prevention and control strategies against APEC in broiler breeders.","PeriodicalId":24003,"journal":{"name":"World's Poultry Science Journal","volume":"5 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87045617","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}
High-quality academic publishing is built on rigorous peer review [...]
高质量的学术出版建立在严格的同行评审的基础上[…]
{"title":"Acknowledgment to the Reviewers of Poultry in 2022","authors":"","doi":"10.3390/poultry2010003","DOIUrl":"https://doi.org/10.3390/poultry2010003","url":null,"abstract":"High-quality academic publishing is built on rigorous peer review [...]","PeriodicalId":24003,"journal":{"name":"World's Poultry Science Journal","volume":"29 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81421116","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}
B. Ganguly, Ashwini Verma, Balwinder Singh, A. Das, S. Rastogi, A. Seidavi, D. Lazari, I. Giannenas
Infectious bursal disease virus (IBDV) is a serious poultry pathogen responsible for causing major economic losses to the poultry industry globally. The virus is closely related to several other important viral pathogens of fishes, crabs, and mollusks and evolutionarily related to important viral pathogens of humans. Previously, we demonstrated the inhibition of this virus by the extracts of roots of Withania somnifera Dunal, commonly known as Indian ginseng, both in vitro and in vivo. Furthermore, many studies reported the inhibition of diverse types of viruses by nanoparticles of silver. In the present study, we investigated the inhibitory effect of silver nanoparticles obtained by green synthesized with Indian ginseng extract against IBDV. Conditions for the synthesis of silver nanoparticles were optimized, and the nanoparticles thus obtained (WS AgNPs) were characterized physically. Thereafter, the maximum non-cytotoxic dose of these nanoparticles for treating chicken embryo fibroblasts (CEF) was determined. Treatment of IBDV-infected CEF with the WS AgNPs decreased the infective virus titer by >93%, intracellular viral load by >71%, and virus-induced cytopathy by >51%, demonstrating the strong inhibitory effect of the WS AgNPs against IBDV, and encouraging similar applications against related veterinary and human viruses.
{"title":"Green Synthesis of Silver Nanoparticles with Extract of Indian Ginseng and In Vitro Inhibitory Activity against Infectious Bursal Disease Virus Thereof","authors":"B. Ganguly, Ashwini Verma, Balwinder Singh, A. Das, S. Rastogi, A. Seidavi, D. Lazari, I. Giannenas","doi":"10.3390/poultry2010002","DOIUrl":"https://doi.org/10.3390/poultry2010002","url":null,"abstract":"Infectious bursal disease virus (IBDV) is a serious poultry pathogen responsible for causing major economic losses to the poultry industry globally. The virus is closely related to several other important viral pathogens of fishes, crabs, and mollusks and evolutionarily related to important viral pathogens of humans. Previously, we demonstrated the inhibition of this virus by the extracts of roots of Withania somnifera Dunal, commonly known as Indian ginseng, both in vitro and in vivo. Furthermore, many studies reported the inhibition of diverse types of viruses by nanoparticles of silver. In the present study, we investigated the inhibitory effect of silver nanoparticles obtained by green synthesized with Indian ginseng extract against IBDV. Conditions for the synthesis of silver nanoparticles were optimized, and the nanoparticles thus obtained (WS AgNPs) were characterized physically. Thereafter, the maximum non-cytotoxic dose of these nanoparticles for treating chicken embryo fibroblasts (CEF) was determined. Treatment of IBDV-infected CEF with the WS AgNPs decreased the infective virus titer by >93%, intracellular viral load by >71%, and virus-induced cytopathy by >51%, demonstrating the strong inhibitory effect of the WS AgNPs against IBDV, and encouraging similar applications against related veterinary and human viruses.","PeriodicalId":24003,"journal":{"name":"World's Poultry Science Journal","volume":"92 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2023-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89968297","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}
Pub Date : 2023-01-02DOI: 10.1080/00439339.2023.2163955
M. T. Banday, S. Adil, I. Sheikh, H. Hamadani, Farhat I. Qadri, Manal E. Sahfi, Habiba S.A.W. Sait, Taia A. Abd El-Mageed, H. Salem, A. Taha, M. El‐Saadony, M. A. Abd El-Hack
SUMMARY Feed accounts for 65–70% of total rearing costs in poultry farming. Animal protein is the most expensive component in poultry feed accounting for 15% of the total cost. In many localities, fishmeal is a traditional animal protein used for poultry feed production, but it is expensive and reduces the expected profit from poultry farming. On the other hand, excessive demand for poultry meat and eggs has augmented the need for new feed components to sustain the intensive poultry industry. Thus, the feed industry requires an alternative digestible protein source with a suitable amino acid profile to replace traditional protein sources. Silkworm pupae in this regard have some promising advantages. Silkworm pupae are agro-industrial by-products with higher nutritional content having a crude protein content of 50–80% in defatted meals with a considerable amount of methionine (2–3% of protein), lysine (6–16% of protein) and lipids (21–38%). In addition, silkworm pupae meal (SWPM) contains a high ratio of important fatty acids and minerals (particularly calcium and phosphorus). SWPM has been successfully integrated as a feed element in poultry ration. The main goal of this study is to emphasise the importance of SWPM as a cost-effective protein for the poultry industry, as opposed to other expensive traditional protein sources and clarify the impact of SWPM supplementation on broiler chickens’ performance.
{"title":"The use of silkworm pupae (Bombyx mori) meal as an alternative protein source for poultry","authors":"M. T. Banday, S. Adil, I. Sheikh, H. Hamadani, Farhat I. Qadri, Manal E. Sahfi, Habiba S.A.W. Sait, Taia A. Abd El-Mageed, H. Salem, A. Taha, M. El‐Saadony, M. A. Abd El-Hack","doi":"10.1080/00439339.2023.2163955","DOIUrl":"https://doi.org/10.1080/00439339.2023.2163955","url":null,"abstract":"SUMMARY Feed accounts for 65–70% of total rearing costs in poultry farming. Animal protein is the most expensive component in poultry feed accounting for 15% of the total cost. In many localities, fishmeal is a traditional animal protein used for poultry feed production, but it is expensive and reduces the expected profit from poultry farming. On the other hand, excessive demand for poultry meat and eggs has augmented the need for new feed components to sustain the intensive poultry industry. Thus, the feed industry requires an alternative digestible protein source with a suitable amino acid profile to replace traditional protein sources. Silkworm pupae in this regard have some promising advantages. Silkworm pupae are agro-industrial by-products with higher nutritional content having a crude protein content of 50–80% in defatted meals with a considerable amount of methionine (2–3% of protein), lysine (6–16% of protein) and lipids (21–38%). In addition, silkworm pupae meal (SWPM) contains a high ratio of important fatty acids and minerals (particularly calcium and phosphorus). SWPM has been successfully integrated as a feed element in poultry ration. The main goal of this study is to emphasise the importance of SWPM as a cost-effective protein for the poultry industry, as opposed to other expensive traditional protein sources and clarify the impact of SWPM supplementation on broiler chickens’ performance.","PeriodicalId":24003,"journal":{"name":"World's Poultry Science Journal","volume":"20 1","pages":"119 - 134"},"PeriodicalIF":2.7,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73716433","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}
Pub Date : 2023-01-02DOI: 10.1080/00439339.2023.2163044
Md. Ashrafudoulla, M. S. I. Ulrich, Sazzad Hossen Toushik, S. Nahar, P. Roy, Furkanur Rahaman Mizan, S. Park, S. Ha
SUMMARY Consumers are more conscious of both the quality and microbial safety of the food they eat. Therefore, their demand for safe food and food products has motivated researchers to develop non-conventional processing technologies. Numerous investigations have shown the effectiveness of high-pressure processing, ultraviolet, pulsed light, ultrasonic sterilisation, pulsed electric field, irradiation, and cold plasma to produce safe and high-quality products compared to conventional processes. This review aims to summarise the advanced applications of these promising non-conventional thermal technologies to provide safe and high-quality food products. Many innovative strategies have been proposed as an alternative to conventional technologies, normally applied to reduce pathogenic microbes. This study presents some potential non-conventional technologies that show emerging microbial decontamination abilities for improving finished food products’ freshness, safety and multiplication. It also summarises the inactivation mechanism of foodborne pathogens, which presents an outline of the effects on finished food product quality based on microbiological and physicochemical perspectives. The key advantage of these technologies is their potential to inactivate foodborne microorganisms without affecting the nutritional value of food products. These technologies are gradually entering the food industry due to technological advances and low investment costs. A comprehensive study is critical to keep abreast of these technologies’ merits, application scope and recent developments to ensure food products satisfy consumer demands while maintaining the highest quality and safety standards.
{"title":"Challenges and opportunities of non-conventional technologies concerning food safety","authors":"Md. Ashrafudoulla, M. S. I. Ulrich, Sazzad Hossen Toushik, S. Nahar, P. Roy, Furkanur Rahaman Mizan, S. Park, S. Ha","doi":"10.1080/00439339.2023.2163044","DOIUrl":"https://doi.org/10.1080/00439339.2023.2163044","url":null,"abstract":"SUMMARY Consumers are more conscious of both the quality and microbial safety of the food they eat. Therefore, their demand for safe food and food products has motivated researchers to develop non-conventional processing technologies. Numerous investigations have shown the effectiveness of high-pressure processing, ultraviolet, pulsed light, ultrasonic sterilisation, pulsed electric field, irradiation, and cold plasma to produce safe and high-quality products compared to conventional processes. This review aims to summarise the advanced applications of these promising non-conventional thermal technologies to provide safe and high-quality food products. Many innovative strategies have been proposed as an alternative to conventional technologies, normally applied to reduce pathogenic microbes. This study presents some potential non-conventional technologies that show emerging microbial decontamination abilities for improving finished food products’ freshness, safety and multiplication. It also summarises the inactivation mechanism of foodborne pathogens, which presents an outline of the effects on finished food product quality based on microbiological and physicochemical perspectives. The key advantage of these technologies is their potential to inactivate foodborne microorganisms without affecting the nutritional value of food products. These technologies are gradually entering the food industry due to technological advances and low investment costs. A comprehensive study is critical to keep abreast of these technologies’ merits, application scope and recent developments to ensure food products satisfy consumer demands while maintaining the highest quality and safety standards.","PeriodicalId":24003,"journal":{"name":"World's Poultry Science Journal","volume":"1 1","pages":"3 - 26"},"PeriodicalIF":2.7,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76719597","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}
Pub Date : 2023-01-02DOI: 10.1080/00439339.2023.2163042
V. Vertiprakhov, A. Grozina, V. Fisinin, Peter F Surai
SUMMARY Poultry farming is the fastest growing sector of agriculture. Balanced diets are an important factor for realisation of the genetic potential of birds. The pancreas plays an important role in the digestive process. The aim of the review is to describe the adaptation of chicken pancreatic secretory functions to a diet with various protein and fat ingredients. Due to the fact that digestive enzymes correlate with nutrient absorption, basic knowledge of pancreatic secretion can be useful to improve poultry nutrition and the economics of the poultry industry in general. The consumption of soy cake instead of sunflower cake (with a 1.5% increase in dietary crude fat) led to an increase in the activity of pancreatic juice lipase by 33.8%. A slight increase in crude protein in the feed (by 0.5%) led to an increase in proteolytic activity by 28.1% compared to the background period. The consumption of sunflower oil instead of soybean, rapeseed and linseed oil in the diet led to a decrease in the activity of pancreatic juice lipase by 42.2%, 57.6% and 19.1%, respectively. It could be concluded that in chickens there is no strict parallelism in the release of the pancreatic enzymes and there is no clear adaptation to a specific feed component.
{"title":"Adaptation of chicken pancreatic secretory functions to feed composition","authors":"V. Vertiprakhov, A. Grozina, V. Fisinin, Peter F Surai","doi":"10.1080/00439339.2023.2163042","DOIUrl":"https://doi.org/10.1080/00439339.2023.2163042","url":null,"abstract":"SUMMARY Poultry farming is the fastest growing sector of agriculture. Balanced diets are an important factor for realisation of the genetic potential of birds. The pancreas plays an important role in the digestive process. The aim of the review is to describe the adaptation of chicken pancreatic secretory functions to a diet with various protein and fat ingredients. Due to the fact that digestive enzymes correlate with nutrient absorption, basic knowledge of pancreatic secretion can be useful to improve poultry nutrition and the economics of the poultry industry in general. The consumption of soy cake instead of sunflower cake (with a 1.5% increase in dietary crude fat) led to an increase in the activity of pancreatic juice lipase by 33.8%. A slight increase in crude protein in the feed (by 0.5%) led to an increase in proteolytic activity by 28.1% compared to the background period. The consumption of sunflower oil instead of soybean, rapeseed and linseed oil in the diet led to a decrease in the activity of pancreatic juice lipase by 42.2%, 57.6% and 19.1%, respectively. It could be concluded that in chickens there is no strict parallelism in the release of the pancreatic enzymes and there is no clear adaptation to a specific feed component.","PeriodicalId":24003,"journal":{"name":"World's Poultry Science Journal","volume":"26 1","pages":"27 - 41"},"PeriodicalIF":2.7,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84823768","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：