Article
Agriculture, Multidisciplinary
Ralf Greiner
Summary: The study showed that the current in vitro model does not sufficiently mimic the in vivo situation in birds to evaluate the bioefficacy of phytase products under real conditions. However, it can be used as a complementary tool in the pre-selection of promising phytase candidates to reduce the number of feeding trials in the initial screening phase.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)
Review
Agriculture, Multidisciplinary
Hanna Philippi, Vera Sommerfeld, Wilhelm Windisch, Oluyinka Abiona Olukosi, Alessandra Monteiro, Markus Rodehutscord
Summary: Phytase supplementation is becoming important in animal nutrition due to its impact on phosphorus digestibility and the growing relevance of phosphorus for sustainable production. This review focuses on the interactions of zinc with phytate and phytase in the digestive tract of poultry and pigs, emphasizing the effects of zinc supplementation on phytase efficacy and phosphorus digestibility. In vitro studies show the inhibitory effect of zinc on phytase efficacy, but there is limited and inconsistent data from in vivo studies, possibly due to various factors and differences in methodology.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Agriculture, Dairy & Animal Science
R. Kriseldi, C. L. Walk, M. R. Bedford, W. A. Dozier
Summary: The experiment demonstrated that supplementing phytase up to 40,500 FTU/kg can significantly reduce phytate concentrations in the gizzard and ileal digesta contents of broilers, leading to increased plasma inositol concentration.
Article
Agriculture, Dairy & Animal Science
R. Kriseldi, C. L. Walk, M. R. Bedford, W. A. Dozier
Summary: The experiment showed that the addition of 40,500 FTU/kg of phytase significantly improved the broiler's BW gain, reduced feed conversion, and affected carcass and breast meat weights. In contrast, inositol supplementation did not offer additional benefits compared to phytase supplementation.
Article
Agriculture, Dairy & Animal Science
Rafael F. Sens, Lucas S. Bassi, Leopoldo M. Almeida, Diogo F. Rosso, Levy V. Teixeira, Alex Maiorka
Summary: This study found that higher phytase doses for broilers can improve weight gain, myo-inositol provision, and bone mineral composition. When combined with soybean meal of greater nutritional quality, higher phytase doses can enhance nutrient ileal digestibility.
Review
Agriculture, Dairy & Animal Science
Peter H. Selle, Shemil P. Macelline, Peter V. Chrystal, Sonia Yun Liu
Summary: Since the turn of this century, the inclusion of phytate-degrading enzymes in chicken diets has greatly contributed to sustainable chicken-meat production. Exogenous phytases have reduced phosphorus pollution and improved broiler growth performance. The wide range of anti-nutritive properties of phytate is counteracted by exogenous phytases, resulting in enhanced nutrient utilization.
Review
Food Science & Technology
Xiaoxue Lu, Rongrong Ma, Jinling Zhan, Fan Wang, Yaoqi Tian
Summary: This article reviews the effects of proteins and their hydrolysates on the structure, properties, and digestibility of starch. The study found that proteins and their hydrolysates have different impacts on the microstructure, crystal structure, chemical structure, and thermal stability of starch under different conditions. They can also regulate the digestive properties of starch and be used as ingredients for low-glycemic starch-based food.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Shemil P. Macelline, Peter Chrystal, Peter H. Selle, Sonia Y. Liu
Summary: This study confirms the importance of protein and amino acid digestive dynamics in broiler chickens. The optimal combination of whey protein and soybean meal improves growth performance and feed conversion ratios. The protein digestion rate has a significant impact on feed conversion.
Article
Fisheries
David Edward Terrey, Daniel Arana Braidi, Robert Serwata
Summary: The addition of a novel phytase to diets for Atlantic salmon showed significant improvements in growth, feed conversion ratio (FCR) and protein efficiency. The phytase supplementation increased the digestibility and retention of phytate and phosphorus, while reducing phosphorus losses in feces and increasing metabolic losses. This study highlights the effectiveness of phytase in reducing effluent wastes from plant meal-based diets for salmon.
AQUACULTURE INTERNATIONAL
(2023)
Article
Agriculture, Dairy & Animal Science
L. Marchal, A. Bello, E. B. Sobotik, G. Archer, Y. Dersjant-Li
Summary: The experiments showed that all IPF treatments maintained or improved growth performance and bone quality parameters compared to the positive control diet throughout all phases in both trials. Treatment IPF3 demonstrated significant improvements in growth performance and feed conversion ratio in Trial 1 and Trial 2, while IPF4 showed equivalent performance to IPF3 in both trials. This study provides the first data to show total replacement of inorganic phosphate with microbial phytase in broiler diets throughout an entire growth cycle.
Review
Agriculture, Multidisciplinary
Vera Sommerfeld, Regiane R. Santos
Summary: The positive effects of phytases on the environment, animal welfare, and animal feed costs have led to continuous development and improvement in the non-ruminant feed market. In vitro assays can help evaluate phytase enzymes and reduce the number of in vivo experiments, though they cannot fully replace them. Additionally, in vitro assays have the potential to rank feed enzymes and serve as screening tools.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)
Article
Food Science & Technology
Xianliang Bao, Xianghui Yan, Guohua Zhang, Junxin Zhao, Zheling Zeng, Ping Yu, Deming Gong
Summary: The study found that phytase treatment improved the degradation of phytate, increased the Zeta potential and protein isoelectric point of CPI, enhanced thermal stability and Ca²⁺ content in low phytate samples, and had positive effects on the functional and digestive properties of CPI.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Yueming Dersjant-Li, Ivonne Kok, Edwin Westreicher-Kristen, Ruben Garcia-Gonzalez, Alessandro Mereu, Trine Christensen, Leon Marchal
Summary: This study investigated the effect of a biosynthetic bacterial 6-phytase on the digestibility and excretion of crude protein, phosphorus, and phytate-P in midlactating dairy cows. The results showed that the addition of different doses of phytase improved the digestibility of key nutrients and reduced fecal excretion in a dose-dependent manner.
JOURNAL OF ANIMAL SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
Q. Zhang, C. L. Walk, A. J. Cowieson, K. Stamatopoulos, J. L. Wu, J. O. B. Sorbara
Summary: This study evaluated the efficacy of a novel phytase in terms of phytate hydrolysis and the digestibility of phosphorus and calcium in broiler chickens fed low and high phytate diets. The results showed that the phytase effectively hydrolyzed phytate and increased digestible phosphorus and calcium. The response to dietary phytate varied in terms of age and the specific nutrient being evaluated.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2024)
Article
Agriculture, Dairy & Animal Science
Markus Rodehutscord, Vera Sommerfeld, C. Roselina Angel, Douglas R. Korver
Summary: The objective of this contribution is to summarize the optimal concentration of nonphytate phosphorus (NPP) in feed for laying hens from scientific literature. The data suggests that the NPP concentration in feed should not exceed 2.2 g NPP/kg without the use of phytase, as it shows no positive effect on performance and eggshell. The addition of phytase to the feed can reduce this value, but precise values of reduction cannot be calculated due to insufficient data.
Article
Agriculture, Dairy & Animal Science
P. H. Selle, H. H. Truong, A. Khoddami, A. F. Moss, T. H. Roberts, S. Y. Liu
BRITISH POULTRY SCIENCE
(2019)
Article
Fisheries
Ha H. Truong, Barney M. Hines, Artur N. Rombenso, Cedric J. Simon
Summary: This study investigated the effects of different dietary ingredients on feed intake, digesta travel rate, and post-prandial concentration of free amino acids in the haemolymph of Penaeus monodon. The results showed that diets with whole squid meal (SQ) and microbial Novacg (TM) (NQ) could increase feed intake and haemolymph free amino acid concentration. Krill meal (KM) had the highest amino acid concentration at 10 minutes and all diets showed a convergence of haemolymph free amino acids by 30 minutes.
Article
Agriculture, Dairy & Animal Science
Cedric J. Simon, Ha Truong, Natalie Habilay, Barney Hines
Summary: While fishmeal can be replaced entirely in diets for whiteleg shrimp, it is still needed for optimum culture performance in giant tiger prawn. Crystalline amino acid supplementation is becoming popular in shrimp feed formulation, but careful feeding management is required due to potential leaching losses. The feeding behavior and nutrient bioavailability of shrimp are important factors to consider in formulating diets.
Article
Agriculture, Dairy & Animal Science
Mauricio G. C. Emerenciano, Artur N. Rombenso, Felipe d. N. Vieira, Mateus A. Martins, Greg J. Coman, Ha H. Truong, Tansyn H. Noble, Cedric J. Simon
Summary: The shrimp sector has witnessed rapid growth in recent years, with a shift towards intensified production systems. Farmers are opting for more controlled intensive systems with higher biosecurity to meet the increasing market demand and mitigate risks posed by pathogens. Nutrition and breeding play critical roles in supporting the intensification of shrimp farming. This review provides an update on current production systems and strategies, highlighting the advances made in nutrition, breeding, and pathogen surveillance in promoting intensification and super-intensive shrimp culture.
Review
Fisheries
Ha H. Truong, Barney M. Hines, Mauricio G. Emerenciano, David Blyth, Sarah Berry, Tansyn H. Noble, Nicholas A. Bourne, Nicholas Wade, Artur N. Rombenso, Cedric J. Simon
Summary: This review presents the current knowledge of mineral nutrition for penaeid shrimp, including the influence of the aquatic environment and shrimp lifecycle, methods of mineral supply, and requirements for individual minerals. With the intensification and diversification of shrimp aquaculture, mineral nutrition will become increasingly important.
REVIEWS IN AQUACULTURE
(2023)
Review
Agriculture, Dairy & Animal Science
H. H. Truong, B. M. Hines, A. N. Rombenso, C. J. Simon
Summary: This article provides an overview of the challenges faced by nutritionists in the Australian aquaculture industry. It discusses the unique aspects of aquaculture nutrition, such as providing nutrition in aquatic environments, the diversity of species, and the specific nutritional requirements of different species. The article also explores how environmental and social concerns are driving new trends in aquaculture nutrition, including the replacement of wild-caught fish meal and fish oil and the focus on improving nutrient retention and reducing the carbon footprint.
ANIMAL PRODUCTION SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
Ha H. Truong, Amy F. Moss, Nicholas A. Bourne, Cedric J. Simon
Article
Fisheries
Artur N. Rombenso, Ha Truong, Cedric Simon
Review
Agriculture, Dairy & Animal Science
Peter H. Selle, Amy F. Moss, Ha H. Truong, Ali Khoddami, David J. Cadogan, Ian D. Godwin, Sonia Y. Liu
Article
Agriculture, Dairy & Animal Science
A. F. Moss, H. H. Truong, S. Y. Liu, P. H. Selle
BRITISH POULTRY SCIENCE
(2018)
Article
Agriculture, Dairy & Animal Science
Amy F. Moss, Peter V. Chrystal, Ha H. Truong, Sonia Yun Liu, Peter H. Selle
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2017)
Article
Nutrition & Dietetics
Ha H. Truong, Peter V. Chrystal, Amy F. Moss, Peter H. Selle, Sonia Yun Liu
BRITISH JOURNAL OF NUTRITION
(2017)
Article
Agriculture, Dairy & Animal Science
Amy F. Moss, Peter V. Chrystal, Ha H. Truong, Peter H. Selle, Sonia Yun Liu
BRITISH POULTRY SCIENCE
(2017)
Review
Agriculture, Dairy & Animal Science
Ha H. Truong, Ali Khoddami, Amy F. Moss, Sonia Y. Liu, Peter H. Selle
Article
Agriculture, Dairy & Animal Science
Christine J. Sydenham, Ha H. Truong, Amy F. Moss, Peter H. Selle, Sonia Yun Liu
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2017)
Article
Agriculture, Dairy & Animal Science
Telisson Ribeiro Goncalves, Jose Renaldo Vilar da Silva Filho, Gilmar Amaro Pereira, Tarcisio Martins Meira, Moema Kelly Nogueira de Sa, Glayciane Costa Gois, Crislane de Souza Silva, Fleming Sena Campos, Sandra Mari Yamamoto, Gherman Garcia Leal de Araujo
Summary: This study evaluated the effects of diets containing vitiviniculture waste on intake, digestibility, water balance, nitrogen balance, ingestive behavior, performance, and carcass traits of lambs. The results showed that feeding lambs with diets containing 216 g/kg cactus pear and 144 g/kg vitiviniculture waste resulted in higher intake and digestibility.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2024)
Article
Agriculture, Dairy & Animal Science
Q. Zhang, C. L. Walk, A. J. Cowieson, K. Stamatopoulos, J. L. Wu, J. O. B. Sorbara
Summary: This study evaluated the efficacy of a novel phytase in terms of phytate hydrolysis and the digestibility of phosphorus and calcium in broiler chickens fed low and high phytate diets. The results showed that the phytase effectively hydrolyzed phytate and increased digestible phosphorus and calcium. The response to dietary phytate varied in terms of age and the specific nutrient being evaluated.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2024)
Article
Agriculture, Dairy & Animal Science
J. Song, D. M. Holanda, C. H. Heuer, C. M. Nyachoti
Summary: This study determined the energy contents of hybrid rye fed to growing pigs, and investigated the effects of particle size on energy values. Results showed that finely ground hybrid rye had higher digestible energy and metabolizable energy compared to coarsely ground hybrid rye, while net energy only showed a slight improvement.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2024)
Article
Agriculture, Dairy & Animal Science
Mohamed Salah Ayyat, Ahmed Mohamed Nabil Ayyat, Mohamed S. Abdel-Rahman, Adham A. Al-Sagheer
Summary: This study evaluated the impact of replacing fish meal with sugar beet and carrot leaf protein concentrate in Nile tilapia. The results showed that replacing 75% of fish meal with leaf protein concentrate had no adverse effects on growth and health, and it was more efficient in terms of economic benefits.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2024)