Article
Agriculture, Dairy & Animal Science
Tiago Bordin, Fernando Pilotto, Daniela Pesenatto, Bruno Sebastiao de Mendonca, Luciane Daroit, Laura Beatriz Rodrigues, Ezequiel Davi dos Santos, Elci Lotar Dickel
Summary: This study evaluated the impact of different food restriction programs on broiler FC, DWG, uniformity, and mortality, showing that food restriction can significantly improve FC without affecting DWG, uniformity, and mortality.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2021)
Article
Agriculture, Dairy & Animal Science
H. M. U. L. Herath, B. C. Jayawardana, P. D. S. M. Fernando, P. Weththasinghe
Summary: The meta-analysis revealed that dietary inclusion of Spirulina could enhance the growth performance of broiler chicken, with improvements in weight gain and feed conversion ratio. Particularly, supplementation of low levels of Spirulina (i.e. less than 10%) in diets is more suitable for achieving higher growth performance in broiler chicken.
WORLDS POULTRY SCIENCE JOURNAL
(2023)
Article
Agriculture, Dairy & Animal Science
P. Cozannet, R. Davin, M. Jlali, J. Jachacz, A. Preynat, F. Molist
Summary: The study evaluated the impact of nutrient composition and exogenous enzymes on the growth performance and feed efficiency of broiler chickens. The results indicate that ME and dLys are the most important factors affecting BWG and FCR, with the addition of MCPC alleviating the negative effects of avP-Ca on performance.
Article
Microbiology
Abdelmotaleb A. A. Elokil, Wei Chen, Khalid Mahrose, Mahmoud M. M. Elattrouny, Khaled F. M. Abouelezz, Hafiz Ishfaq Ahmad, Hua-Zhen Liu, Ahmed A. A. Elolimy, Mahmoud I. I. Mandouh, Alzahraa M. M. Abdelatty, Shijun Li
Summary: This study evaluated the effect of fecal microbial transplantation (FMT) from feed-efficient broiler chickens on the diversity of gut microbiota and growth of native slow-growing egg-laying chicks. The results showed that FMT improved weight gain and reshaped the gut microbiome in the recipients.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
R. A. U. J. Marapana, W. M. P. B. Weerasinghe, G. S. A. Senanayake, P. R. D. Perera, T. R. Seresinhe, R. A. S. N. Ranasinghe, R. A. A. P. Marapana
Summary: A series of experiments were conducted to investigate the effects of food waste on the growth attributes and performance of broilers in a tropical climate. The results showed that using food waste as feed can increase the total feed intake and weight gain of broilers. However, the feeding environment and diet formulation also have an impact on the growth and feed conversion ratio. This study demonstrates the potential application of food waste as an alternative feed in the broiler industry, particularly in urban and suburban areas where it is abundant and easily collected.
TROPICAL ANIMAL HEALTH AND PRODUCTION
(2023)
Article
Ecology
I. P. Ogbuewu, C. A. Mbajiorgu
Summary: Increased consumer awareness of the health benefits of organically produced animals has led to interest in using phytogenics to enhance broiler chicken productivity. This meta-analysis found that turmeric supplementation improved feed conversion efficiency and body weight gain in broiler chickens. The study concluded that turmeric can be used as a performance enhancing agent in the broiler chicken industry.
APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH
(2022)
Article
Agriculture, Dairy & Animal Science
Joonbum Lee, Dong-Hwan Kim, Andrew M. Brower, Izzy Schlachter, Kichoon Lee
Summary: Using MSTN mutant quail as a model, this study investigated the interplay of weight gain, feed intake, and fat accretion, revealing that MSTN mutation significantly improves feed efficiency and reduces fat accretion. These findings suggest that MSTN can potentially be used as a genetic selection marker to enhance poultry production.
Article
Agriculture, Multidisciplinary
Savaram Venkata Rama Rao, Mantena Venkata Lakshmi Narasimha Raju, Thota Srilatha, Devanaboyina Nagalakshmi, Ullengala Rajkumar
Summary: The supplementation of sulfur and folic acid can improve body weight gain and feed efficiency in chickens, while reducing lipid peroxidation. Diets with higher levels of folic acid and sulfur promote protein accretion and increase serum protein levels.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Multidisciplinary Sciences
Miroslaw Banaszak, Jakub Biesek, Marek Adamski
Summary: The study found that the addition of aluminosilicates had a positive effect on the growth performance and meat quality of chickens, especially at specific doses.
Article
Biotechnology & Applied Microbiology
Yang He, Xuan Liu, Yuanyang Dong, Jiaqi Lei, Koichi Ito, Bingkun Zhang
Summary: The study showed that supplementing broiler diets with E. faecium PNC01 improved production performance and intestinal morphology, reduced antibiotic use, and ultimately lowered the feed conversion rate. This indicates that E. faecium PNC01 can be a viable alternative to antibiotics in broiler production to mitigate the adverse effects of antibiotics by modulating the gut microbiota.
MICROBIAL CELL FACTORIES
(2021)
Article
Agriculture, Dairy & Animal Science
S. V. Rama Rao, J. Raju, T. Srilatha, D. Nagalakshmi, M. V. L. N. Raju, S. S. Paul, B. Prakash
Summary: Papain supplementation can improve the performance of broiler chickens, reduce the requirement of protein, and increase the digestibility of energy and nitrogen. Adding papain to low-protein diets significantly improves body weight gain and feed efficiency.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Qiang Huang, Chaoliang Wen, Wei Yan, Congjiao Sun, Shuang Gu, Jiangxia Zheng, Ning Yang
Summary: Improving feed efficiency is an important goal in chicken breeding and production. This study found that the development of the gizzard, liver, and cecum is related to the feed efficiency of chickens.
Article
Agriculture, Dairy & Animal Science
Mario Quaresma, Luisa Cristina Roseiro, Tatiana Ferreira, Maria Leonor Nunes, Goncalo Pereira
Summary: The study confirmed the effectiveness of incorporating oat hay and whole carrots as supplements in reducing production costs in rabbit meat production, allowing for a decrease in concentrate feed intake without compromising rabbit health and yield.
Article
Medicine, General & Internal
Mengxi Du, Christina F. Griecci, Frederick F. Cudhea, Heesun Eom, David D. Kim, Parke Wilde, John B. Wong, Y. Claire Wang, Dominique S. Michaud, Dariush Mozaffarian, Fang Zhang
Summary: The study evaluated the cost-effectiveness of added-sugar labeling in reducing obesity-associated cancer rates in the US. The policy was found to be associated with a reduction in new cancer cases and deaths, as well as cost savings in medical care. Additional industry reformulation to reduce added-sugar amounts in packaged foods and beverages could further increase health gains and cost savings.
Article
Veterinary Sciences
Svetlana Kasabova, Maria Hartmann, Fritjof Freise, Katharina Hommerich, Stephani Fischer, Andreas Wilms-Schulze-Kump, Karl Rohn, Annemarie Kaesbohrer, Lothar Kreienbrock
Summary: The study presented antimicrobial usage data from commercial broiler chicken flocks in Germany, with a focus on investigating antibiotic usage patterns, treatment frequency trends, proportions of different antimicrobial classes, and weights of the broiler chickens at the time of treatment. The analysis revealed significant variations in treatment indicators based on different antimicrobial classes and a decrease in the usage of highest-priority critically important antimicrobials over the 6 years evaluated.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Review
Reproductive Biology
Bruno B. D. Muro, Rafaella F. Carnevale, Ines Andretta, Diego F. Leal, Matheus S. Monteiro, Andre P. Poor, Glen W. Almond, Cesar A. P. Garbossa
Summary: Uterotonics, such as oxytocin and carbetocin, have varied effects on pig farrowing including increasing stillborn proportion, shortening farrowing duration and birth interval, and increasing the need for farrowing assistance. The use of these drugs should be carefully considered on a case-by-case basis due to potential deleterious effects for piglets and sows.
Article
Agriculture, Dairy & Animal Science
Balamuralikrishnan Balasubramanian, Sureshkumar Shanmugam, Sungkwon Park, Neeraja Recharla, Jin Su Koo, Ines Andretta, In Ho Kim
Summary: Seaweed is rich in potential bioactive substances and essential nutrients, making it a potential choice as a poultry feed additive with beneficial effects on growth performance, relative organ weight, nutrient digestibility, fecal microbial counts, and gut health in broilers.
Article
Agriculture, Dairy & Animal Science
F. Prado, C. Orso, M. A. Ebbing, M. Kipper, I Andretta, A. M. L. Ribeiro
Summary: This study evaluated the relationship between environmental conditions and seasons on the prevalence of Dorsal Cranial Myopathy (DCM) in broiler-type chickens. It found that the prevalence of DCM varied among seasons, with higher rates during autumn and winter, and lower rates during summer. Additionally, no differences were observed in the microbiological analysis between carcasses affected by DCM and the control group.
JOURNAL OF APPLIED POULTRY RESEARCH
(2021)
Article
Agriculture, Dairy & Animal Science
I. Andretta, M. Kipper, G. D. Schirmann, C. S. Franceschina, A. M. L. Ribeiro
Summary: Heat stress has a bigger impact on broiler performance over 21 days of age, especially on feed intake and weight gain, while feed conversion is not affected. The correlation between dietary electrolyte balance and heat stress in broilers is weak.
Correction
Agriculture, Dairy & Animal Science
C. Orso, T. B. Stefanello, C. H. Franceschi, M. B. Mann, A. P. M. Varela, I. M. S. Castro, J. Frazzon, A. P. G. Frazzon, I. Andretta, A. M. L. Ribeiro
Article
Agronomy
Joselito Bastos da Silva Junior, Leonardo Augusto Fonseca Pascoal, Ines Andretta, Marcos Kipper da Silva, Luciano Hauschild, Bruna Kuhn Gomes, Carolina Schell Franceschina
Summary: This study evaluated the effects of feed containing different levels of neutral detergent fiber (NDF) and acid detergent fiber (ADF) on the performance and carcass traits of finishing pigs through meta-analysis. The results showed that ingredients with high concentrations of NDF and ADF negatively affect the weight gain and feed conversion of finishing pigs. However, the fraction related to ADF has a positive relationship with the reduction of backfat thickness.
Article
Multidisciplinary Sciences
Alicia Zem Fraga, Luciano Hauschild, Paulo Henrique Reis Furtado Campos, Marcio Valk, Debora Zava Bello, Marcos Kipper, Ines Andretta
Summary: This study evaluated the effects of genetic selection on the feeding behavior of group-housed pigs under daily cyclic high ambient temperatures. It found that pigs with genetic selection for improved lean tissue accretion had higher feed intake rate and lower feed intake.
Article
Biodiversity Conservation
Claudio Estevao Farias Cruz, Camila Eloine Silva Soares, Gustavo Bonamigo Hirt, Paulo Guilherme Carniel Wagner, Ines Andretta, Walter Nisa-Castro Neto
Summary: Driven by illegal billion-dollar revenue, the capture and trade of wild fauna remain the leading illegal activities in Brazil and elsewhere. This study presents insights into the wild animals sheltered at the Wild Animal Triage Center in Southern Brazil. The results highlight the urgent need to change our ways of interacting with wildlife, especially the irresponsible ownership of animals.
ETHNOBIOLOGY AND CONSERVATION
(2022)
Article
Agriculture, Dairy & Animal Science
C. Orso, B. L. Cony, J. P. Silva, J. C. V. Furtado, M. B. Mann, J. Frazzon, A. P. G. Frazzon, I. Andretta, A. M. L. Ribeiro
Summary: This experiment aimed to determine whether adding gelatin and vitamin E to the diet of male Cobb broilers vaccinated for coccidiosis can alleviate impaired performance. The results showed that vaccination negatively affected performance in the first 21 days, but the inclusion of gelatin and vitamin E reduced this negative response and improved performance. Additionally, vaccinated chickens had increased pro-inflammatory immune status and mucin expression compared to broilers receiving salinomycin.
Review
Agriculture, Dairy & Animal Science
Nathalia de Oliveira Telesca Camargo, Bruna Souza de Lima Cony, Marcos Kipper da Silva, Carolina Haubert Franceschi, Ines Andretta
Summary: This study evaluated dietary phytogenic additives (DPA) for pigs through a systematic review and meta-analysis. A total of 104 studies were included in the analysis. The most frequently tested phytogenic additives were oregano and garlic. However, their effects on performance parameters were not significant compared to the control treatments. The study suggests that further research is needed to explore the synergistic effects and dose-response of phytogenic additives in pig performance.
Article
Agriculture, Dairy & Animal Science
Marllon Jose Karpeggiane de Oliveira, Marcio Valk, Antonio Diego Brandao Melo, Danilo Alves Marcal, Cleslei Alisson Silva, Graziela Alves da Cunha Valini, Pedro Righetti Arnaut, Joseane Penteado Rosa Goncalves, Ines Andretta, Luciano Hauschild
Summary: Pigs reared in tropical climate areas are affected by high ambient temperatures, leading to changes in feeding behavior and reduced performance. The study investigated the effects of cyclic heat stress (CHS) and light events on pig feeding behavior. Results showed that CHS disrupted the feeding circadian rhythm, and pigs prioritized feed intake during the coolest hours of the day. However, nocturnal cooling did not fully compensate for the reduced meal size caused by CHS. The lighting program also influenced feeding patterns, increasing or decreasing meal size when the lights were turned on or off.
Article
Agriculture, Dairy & Animal Science
Luis Filipe Villas Boas de Freitas, Nilva Kazue Sakomura, Matheus de Paula Reis, Alexandre Bonadiman Mariani, William Lambert, Ines Andretta, Marie-Pierre Letourneau-Montminy
Summary: This article investigates the impact of coccidiosis on broiler chicken performance and conducts an evaluation using a meta-analysis approach. The study finds that the variation in performance due to coccidiosis is only influenced by the number of days post-infection. In the acute phase, broilers experience a significant decrease in average daily feed intake, average daily gain, and gain per feed. However, these indicators gradually recover during the later stages. Additionally, coccidia has a greater impact on average daily gain compared to average daily feed intake due to its aggressive action causing gut epithelial lesions and reducing the utilization of nutrients and energy.
Review
Agriculture, Dairy & Animal Science
Abirami Ramu Ganesan, Balamuralikrishnan Balasubramanian, Sungkwon Park, Rajesh Jha, Ines Andretta, Archibold G. Bakare, In Ho Kim
Summary: This article highlights the effects of ochratoxin A (OTA) in the feed of meat-producing animals, focusing on its accumulation and distribution in feed as well as the harm it poses to animals' vital organs. It also suggests mitigation strategies to prevent the health risks associated with OTA in animal feed.
Article
Agriculture, Multidisciplinary
Katia Maria Cardinal, Ines Andretta, Marcos Kipper da Silva, Thais Bastos Stefanello, Bruna Schroeder, Andrea Machado Leal Ribeiro
Summary: This study used meta-analysis to analyze the impact of adding or withdrawing antibiotic growth promoters in pig diets, finding that AGP+ diets during the post-weaning phase increased weight gain but had no effect on weight gain in the growing-finishing phase, with better feed conversion rates across all stages. Withdrawal of AGP led to increased feed costs.
Article
Agriculture, Multidisciplinary
Paula Gabriela da Silva Pires, Carolina Haubert Franceschi, Caroline Bavaresco, Aline Fernanda Rodrigues Leuven, Ines Andretta
Summary: The effects of plasticizer types and whey protein concentrate (WPC) as coatings on the internal quality and shelf life of eggs stored for 42 days were evaluated. The combination of plasticizers GLY, SOR, and PRO with WPC demonstrated effectiveness in maintaining egg quality, with WPC+SOR showing superiority in preserving quality integrity of eggs.
Article
Agriculture, Dairy & Animal Science
Jesper Tessin, Judith Rohde, Arne Jung, Nicole Kemper, Jochen Schulz
Summary: In this study, samples from poultry house environment and culled birds were collected, and E. cecorum was successfully isolated. The principle of isolating the pathogen by streaking on a chromogenic agar may motivate researchers to investigate transmission routes and optimize biosecurity measures.
Article
Agriculture, Dairy & Animal Science
Junqin Zhang, Zimin Xie, Yanlin Pan, Zuoxin Chen, Yunzhen Huang, Linlin Li, Jiawen Dong, Yong Xiang, Qi Zhai, Minhua Sun, Xingying Li, Shujian Huang, Ming Liao
Summary: In recent years, there has been an increase in the occurrence of fowl adenovirus 2 (FAdV-2) in China, posing a significant threat to the poultry industry. This study investigated the epidemiology, phylogenetic relationship, genomic characteristics, and pathogenicity of FAdV-2. The results showed that FAdV-2 was the most commonly detected serotype among various FAdV serotypes. Genetic analysis revealed that these FAdV-2 strains formed a distinct branch within the FAdV-D group and had a high nucleotide similarity with reference strains. Recombination analysis identified recombination events between FAdV-2 and FAdV-11 in some strains. Pathogenicity experiments demonstrated that a recombinant FAdV-2 strain caused a high mortality rate and more severe disease in chickens. These findings contribute to our understanding of FAdV-2 and provide a basis for vaccine development.
Article
Agriculture, Dairy & Animal Science
Ebtsam Iraqi, Ali Abdel Hady, Nadia Elsayed, Hanaa Khalil, Amina El-Saadany, Karim El-Sabrout
Summary: Thermal manipulation during egg incubation, particularly at 12 to 18 days, has positive effects on embryonic development, hatching characteristics, chick quality, as well as posthatch thermotolerance and performance.
Article
Agriculture, Dairy & Animal Science
Yong Liu, Mingxin Song, He Bai, Chunhua Wang, Fei Wang, Qi Yuan
Summary: Dietary curcumin supplementation can significantly improve egg quality of quails in the late laying period, primarily by improving lipid metabolism and selectively regulating the intestinal microbial community.
Article
Agriculture, Dairy & Animal Science
Lei Zhang, Zhixuan Song, Peiyao Li, Xingju Song, Xinming Tang, Dandan Hu
Summary: This study evaluated the vaccine potential of recombinant proteins for avian coccidiosis caused by Eimeria. The results showed that the rEten5-B protein can trigger immune protection against E. tenella and may be a potential and effective subunit vaccine for the control of coccidiosis in poultry.
Article
Agriculture, Dairy & Animal Science
Milan Kumar Sharma, Amit Kumar Singh, Doyun Goo, Venkata Sesha Reddy Choppa, Hanseo Ko, Hanyi Shi, Woo Kyun Kim
Summary: The study investigates the effect of Eimeria infection on gastrointestinal physiology, growth performance, and egg production of Hy-Line W-36 laying hens during peak production. Results show that Eimeria infection negatively affects body weight, feed intake, immune response, and nutrient transporter gene expression. Egg production temporarily ceases in hens infected with high and medium-high dosages of Eimeria.
Article
Agriculture, Dairy & Animal Science
Elwy A. Ashour, Mahmoud Kamal, Hayman A. A. Altaie, Ayman A. Swelum, Gamaleldin M. Suliman, Guillermo Tellez-Isaias, Mohamed E. Abd El-Hack
Summary: This study evaluated the effects of CP and ME on the performance and nutritional value of Japanese quail lay chicken. The results showed that protein and energy levels significantly influenced all productive outcomes except feed conversion ratio. The combination of dietary energy and protein levels had a substantial effect on all egg quality trials evaluated. It is recommended to feed layer Japanese quail between the ages of 8 and 20 weeks during the summer with a dietary energy content of 2,900 kcal ME/kg and 20% CP.
Article
Agriculture, Dairy & Animal Science
J. E. Doornweerd, R. F. Veerkamp, B. de Klerk, M. van der Sluis, A. C. Bouwman, E. D. Ellen, G. Kootstra
Summary: Tracking group-housed individual broilers using video can provide valuable information on their health, welfare, and performance. This study conducted a comprehensive analysis on broiler tracking on video and potential tracking errors, highlighting the potential and challenges of phenotyping broiler locomotion. The results emphasized the importance of addressing tracking errors, potential algorithm improvements, and the need for an external animal identification system for efficient locomotion phenotyping.
Article
Agriculture, Dairy & Animal Science
Jiayu Wu, Yanan Wang, Yu An, Changyu Tian, Lingfeng Wang, Zuhong Liu, Desheng Qi
Summary: This study compared the gene expression differences in liver tissues of laying hens at different ages using RNA sequencing, and found that the transport and metabolism of amino acids changed during the growing period, which influenced the growth and development of the hens.
Article
Agriculture, Dairy & Animal Science
J. Raabe, G. Raveendran, W. Otten, K. Homeyer, T. Bartels
Summary: This study investigated the effects of different flicker frequencies on the behavior, performance, and stress response in male turkeys. The results showed that flicker frequencies of 165 Hz or higher had no detrimental effect on growth performance, injurious pecking, or endocrine stress response in the turkeys.
Article
Agriculture, Dairy & Animal Science
Adamu Mani Isa, Yanyan Sun, Yuanmei Wang, Yunlei Li, Jingwei Yuan, Aixin Ni, Hui Ma, Lei Shi, Hailai Hagos Tesfay, Yunhe Zong, Panlin Wang, Pingzhuang Ge, Jilan Chen
Summary: This study sequenced mRNAs and lncRNAs in the ovary stroma of specific chicken breeds and their reciprocal crossbreds to understand the molecular mechanism of heterosis for egg production. Results showed that genes with nonadditive expression were related to follicle growth and atresia as well as oxidative stress in the crossbred hens.
Article
Agriculture, Dairy & Animal Science
Zhepeng Wang, Qiu Chen, Yiwei Wang, Yulu Wang, Ruifang Liu
Summary: The study investigates the functional variants associated with chicken eggshell color in the SLCO1B3 gene by measuring the eggshell color of Lueyang black-boned chickens and analyzing the genetic data. It identifies 15 variants in SLCO1B3 that are significantly associated with eggshell color. However, the functional analysis shows that one specific variant, 1B3_SNP108, does not have a significant effect on promoter activity. This study highlights the importance of SLCO1B3 and its variants in breeding eggshell color.
Article
Agriculture, Dairy & Animal Science
P. Yin, Q. Tong, B. M. Li, W. C. Zheng, Y. Wang, H. Q. Peng, X. L. Xue, S. Q. Wei
Summary: This study investigated the welfare and health of laying hens in a multitier system. The results showed that the spatial distribution of hens changed with increasing age, and lower-ranking hens preferred to stay in lower tiers to avoid competition but still had access to resources. This improved the welfare and health of the hens near the end of the laying cycle.
Article
Agriculture, Dairy & Animal Science
Wenwen Liang, Siqiong Jie, Yiqin Wang, Xiaowei Wen, Yanling Xiong, Xiaoxi Lin, Zhengrong Lv
Summary: This study examined the effect of risk perceptions on preventive behavior among vendors in the live poultry wholesale market and the live poultry retail market in Guangdong Province using the health belief model and structural equation modeling. The results showed that perceived severity and perceived benefits positively influenced vendors' self-efficacy in the wholesale market, while perceived barriers negatively affected self-efficacy in both the wholesale and retail markets. Moreover, cues to action mediated the relationship between perceived severity, perceived benefits, and self-efficacy, and also mediated the effect of perceived susceptibility among wholesale market vendors.
Article
Agriculture, Dairy & Animal Science
Shreeya Sharma, Raveendra R. Kulkarni, Shayan Sharif, Hosni Hassan, Mohammadali Alizadeh, Scott Pratt, Khaled Abdelaziz
Summary: The study investigates the impact of exposing chick embryos to antigens via in ovo delivery of poultry-specific lactobacilli on the expression of genes associated with early bursal development and maturation. Results indicate that the supplementation of poultry-specific lactobacilli to chick embryos can accelerate the development and immunological maturation of the bursa of Fabricius.