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Dalle Zotte A, Singh Y, Zsedely E, Contiero B, Palumbo B, Cullere M. Dietary inclusion of defatted silkworm (Bombyx mori L.) pupa meal in broiler chickens: phase feeding effects on nutritional and sensory meat quality. Poult Sci 2024; 103:103812. [PMID: 38735098 PMCID: PMC11101972 DOI: 10.1016/j.psj.2024.103812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 04/15/2024] [Accepted: 04/24/2024] [Indexed: 05/14/2024] Open
Abstract
The present experiment was conducted to test the effect of a 4% defatted silkworm (Bombyx mori) pupae meal (SWM) incorporation into chickens' diets at different growth phases on meat quality characteristics and sensory traits. Ninety ROSS 308 day-old male broiler chickens were randomly assigned to 3 dietary groups, with 5 replicated pens/diet: the first group received a control (C) diet throughout the growing period of 42 d, the second group received a diet with 4% SWM (SWM1) during the starter phase (1-10 d) and the C diet up to slaughter, whereas the third group was fed the C diet during the starter phase and 4% SWM during the grower and finisher phases (SWM2). Diets were isonitrogenous and isoenergy, and birds had free access to feed and water throughout the experimental trial. At 42 d of age, 15 chickens/treatment were slaughtered at a commercial abattoir. Fatty acid (FA) and amino acid (AA) profiles and contents of meat, as well as its oxidative status, were determined in both breast and leg meat cuts. Also, a descriptive sensory analysis was performed on breast meat by trained panelists. Results highlighted that the SWM2 treatment increased the n-3 proportion and content in both breast and leg meat, thereby improving the omega-6/omega-3 (n-6/n-3) ratio in both cuts (P < 0.001). However, the dietary treatment had no significant effect on the oxidative status of either breast or leg meat (P > 0.05). The SWM had a limited impact on overall sensory traits of breast meat, but it contributed to improve meat tenderness in SWM-fed chickens (P < 0.01). Furthermore, SWM1 meat exhibited higher juiciness (P < 0.05) and off flavor intensity (P < 0.05) compared to the control meat. Overall, the present experiment indicated that defatted SWM holds promise as an alternative ingredient in chicken rations, ensuring satisfactory meat quality. Furthermore, administering SWM during the grower-finisher phase demonstrated beneficial effects on meat healthiness, ultimately enhancing n-3 fatty acids content and reducing the n-6/n-3 ratio.
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Affiliation(s)
- Antonella Dalle Zotte
- Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Padova 35020, Italy
| | - Yazavinder Singh
- Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Padova 35020, Italy.
| | - Eszter Zsedely
- Department of Animal Science, Szechenyi István University, Győr H-9026, Hungary
| | - Barbara Contiero
- Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Padova 35020, Italy
| | - Bianca Palumbo
- Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Padova 35020, Italy
| | - Marco Cullere
- Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Padova 35020, Italy
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Liu S, Wang J, Li L, Duan Y, Zhang X, Wang T, Zang J, Piao X, Ma Y, Li D. Endogenous chitinase might lead to differences in growth performance and intestinal health of piglets fed different levels of black soldier fly larva meal. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2023; 14:411-424. [PMID: 37649680 PMCID: PMC10462805 DOI: 10.1016/j.aninu.2023.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 04/04/2023] [Accepted: 05/10/2023] [Indexed: 09/01/2023]
Abstract
This study aimed to investigate the effects of different levels of black soldier fly (BSF) replacing soybean meal (SBM) in diets on the performance and health condition of piglets. A total of 180 weaned piglets were allocated into 5 treatments: BSF0 (corn-soybean meal basal diet), BSF25 (BSF replacing 25% SBM), BSF50 (BSF replacing 50% SBM), BSF75 (BSF replacing 75% SBM) and BSF100 (BSF replacing 100% SBM). During the whole period, in comparison with BSF0, average daily gain (ADG) and average daily feed intake increased in the BSF25 and BSF50 groups, whereas ADG decreased in the BSF75 and BSF100 groups (P < 0.05). The result of quadratic fitting curve showed that piglets exhibited the highest ADG when BSF replaced around 20% SBM. Compared with BSF0, organic matter and dry matter digestibility improved in the BSF25 group, whereas ether extract digestibility decreased in the BSF100 group (P < 0.05). In comparison with BSF0, piglets from the BSF25 group showed a higher duodenal ratio of villus height to crypt depth, increased jejunal sucrase activity, serum neuropeptide Y and ghrelin levels, elevated ileal immunoglobulin (Ig) A, IgG and IgM contents and a lower leptin level, and piglets from the BSF100 group exhibited an increased relative weight of kidney (P < 0.05). However, no significant differences were observed in the expression level of tight junction proteins and chitin-degrading enzyme. Additionally, compared with BSF0, the abundance of short chain fatty acid producing bacteria such as Ruminococcaceae, Faecalibacterium and Butyricicoccus increased, and potential pathogenic bacteria decreased in piglets from the BSF25 group, whereas piglets from the BSF100 group had a greater abundance of harmful bacteria. In conclusion, BSF replacing 25% SBM in diets could improve digestive parameters, immune function and intestinal microbiota, and thus improved growth performance of piglets. However, BSF replacing 100% SBM showed an adverse effect on piglet performance, and the reason might be related to the limited amount of chitin-degrading enzyme.
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Affiliation(s)
- Sujie Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Jian Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Longxian Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Yonggai Duan
- Bennong Agricultural Technology Co., Ltd., Zhengzhou, 450045, China
| | - Xiaolin Zhang
- Bennong Agricultural Technology Co., Ltd., Zhengzhou, 450045, China
| | - Tenghao Wang
- Zhejiang Qinglian Food Co., Ltd, Jiaxing, 314399, China
| | - Jianjun Zang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Xiangshu Piao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Yongxi Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Defa Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
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Khalifah A, Abdalla S, Rageb M, Maruccio L, Ciani F, El-Sabrout K. Could Insect Products Provide a Safe and Sustainable Feed Alternative for the Poultry Industry? A Comprehensive Review. Animals (Basel) 2023; 13:ani13091534. [PMID: 37174571 PMCID: PMC10177474 DOI: 10.3390/ani13091534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/21/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
The planet is home to more than 2000 species of edible insects, some of which have been consumed as food for many years. Recently, edible insect products have been gradually increasing in several countries, such as Italy and Egypt, as novel feed resources for humans and animals due to their availability, potential economic benefits, and high nutritive value. The insect industry can provide a new solution for livestock nutrition and offer many additional advantages, but there are obstacles to overcome, such as some nutritional organizations that forbid its usage. Nevertheless, previous research indicates that different insect species could be used safely as nutraceuticals in poultry farming to improve broiler growth performance (>3%) and layer egg production (>5%). Among these species, there are various products and extracts that can be used in poultry nutrition in a sustainable manner. This review provides an outline of insect composition, nutrient values, application in poultry feed, safety, and guidelines, and finally, the future perspectives of insects as an alternative feed source in poultry diets.
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Affiliation(s)
- Ayman Khalifah
- Livestock Research Department, Arid Lands Cultivation Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab 21934, Egypt
| | - Sara Abdalla
- Plant Protection and Biomolecular Diagnosis Department, Arid Lands Cultivation Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab 21934, Egypt
| | - Mai Rageb
- Department of Food Technology, Arid Lands Cultivation Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab 21934, Egypt
| | - Lucianna Maruccio
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80138 Naples, Italy
| | - Francesca Ciani
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80138 Naples, Italy
| | - Karim El-Sabrout
- Department of Poultry Production, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt
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Singh Y, Cullere M, Bertelli D, Segato S, Franzo G, Frangipane di Regalbono A, Catellani P, Taccioli C, Cappellozza S, Dalle Zotte A. Potential of Full-Fat Silkworm-Based Diets for Laying Quails: Performance and Egg Physical Quality. Animals (Basel) 2023; 13:ani13091510. [PMID: 37174547 PMCID: PMC10177170 DOI: 10.3390/ani13091510] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
The present research was conducted to determine the optimal inclusion level of full-fat silkworm chrysalis meal (SWM) into laying quails' diets, focusing on performance traits and egg physical quality. A total of 240 31-day-old female Japanese quails were randomly assigned to four dietary groups (12 replicates/treatment; 5 quails/replicate); quails were initially fed a standard commercial diet for pullets until 63 days of age. When oviposition started, the experimental groups received the following diets: a conventional corn and soybean-based diet (control diet-C) and three other diets, including 4%, 8%, or 12% of full-fat SWM (SWM4, SWM8, SWM12, respectively). Experimental diets were provided until quails reached 119 days of age. Birds displayed satisfactory productive performance throughout the trial. SWM12 and SWM8 had higher (p < 0.001) egg production but also a higher feed conversion ratio compared to C. At the end of the trial, the eggs edible portion increased, and shell weight decreased with increasing the SWM dietary inclusion level (p < 0.001). At the same time, SWM12 displayed an increase in albumen pH (p < 0.05), even though in the normal range for quail egg. Overall, full-fat SWM (up to 12%) can be considered a promising feed ingredient for laying quails, although higher inclusion levels (>8%) require special attention because SWM also contains anti-nutritional factors.
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Affiliation(s)
- Yazavinder Singh
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020 Padova, Italy
| | - Marco Cullere
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020 Padova, Italy
| | - Davide Bertelli
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - Severino Segato
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020 Padova, Italy
| | - Giovanni Franzo
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020 Padova, Italy
| | - Antonio Frangipane di Regalbono
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020 Padova, Italy
| | - Paolo Catellani
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020 Padova, Italy
| | - Cristian Taccioli
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020 Padova, Italy
| | - Silvia Cappellozza
- Sericulture Laboratory, Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment (CREA-AA), Via Eulero 6a, 35143 Padova, Italy
| | - Antonella Dalle Zotte
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, Legnaro, 35020 Padova, Italy
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Hăbeanu M, Gheorghe A, Mihalcea T. Nutritional Value of Silkworm Pupae ( Bombyx mori) with Emphases on Fatty Acids Profile and Their Potential Applications for Humans and Animals. INSECTS 2023; 14:insects14030254. [PMID: 36975939 PMCID: PMC10051144 DOI: 10.3390/insects14030254] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/24/2023] [Accepted: 02/27/2023] [Indexed: 05/27/2023]
Abstract
Bombyx mori is an ideal lepidopteran species representative of many scientific studies, a model of studies for medicine and a significant insect from an ecological standpoint. This review was performed to summarize the fatty acids (FA) composition of silkworm pupae (SP) that are associated with other important compounds that could add value to SP, diversifying the ways of valorization. The proposal to complete plant-based feeds with insect-based feeds represents a viable option to beneficially impact human and animal health and the environment. The quality and quantity of fats consumed significantly impact the aetiology of certain diseases. The key compounds of fat named essential FA (EFA) substantially influence the prevention and treatment of several diseases through their nutraceutical functions. Due to its excellent profile in nutrients such as protein and fat, amino acids and fatty acids composition, SP has become an important alternative feed ingredient and source of EFA. SP is a by-product that was discarded in large quantities. Following the need to act to improve human health and reduce climate change impact, many researchers focused on studying SP applications in the medical and agricultural industries. Several authors noticed an improvement in the health markers by using SP. The feed cost for the animal was reduced with economic implications. Minimization of environmental impact was recorded. Few precautions were recommended regarding SP use, although they should not be ignored. The composition of SP and its potential for use in various industries provides us with persuasive arguments for continuing to develop the sericulture industry.
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Lanza I, Currò S, Segato S, Serva L, Cullere M, Catellani P, Fasolato L, Pasotto D, Dalle Zotte A. Spectroscopic methods and machine learning modelling to differentiate table eggs from quails fed with different inclusion levels of silkworm meal. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Elahi U, Xu C, Wang J, Lin J, Wu SG, Zhang HJ, Qi GH. Insect meal as a feed ingredient for poultry. Anim Biosci 2022; 35:332-346. [PMID: 34991217 PMCID: PMC8831830 DOI: 10.5713/ab.21.0435] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/16/2021] [Indexed: 12/01/2022] Open
Abstract
Shortage of protein feed resources is the major challenge to the world farm animal industry. Insects are known as an alternative protein source for poultry. A wide range of insects are available for use in poultry diets. Insect larvae thrive in manure, and organic waste, and produce antimicrobial peptides to protect themselves from microbial infections, and additionally these peptides might also be functional in poultry feed. The feed containing antimicrobial peptides can improve the growth performance, nutrient digestibility, intestinal health, and immune function in poultry. Insect meal contains a higher amount of essential amino acids compared to conventional feedstuffs. Black soldier fly, mealworm, housefly, cricket/Grasshopper/Locust (Orthoptera), silkworm, and earthworm are the commonly used insect meals in broiler and laying hen diets. This paper summarizes the nutrient profiles of the insect meals and reviews their efficacy when included in poultry diets. Due to the differences in insect meal products, and breeds of poultry, inconsistent results were noticed among studies. The main challenge for proper utilization, and the promising prospect of insect meal in poultry diet are also addressed in the paper. To fully exploit insect meal as an alternative protein resource, and exert their functional effects, modes of action need to be understood. With the emergence of more accurate and reliable studies, insect meals will undoubtedly play more important role in poultry feed industry.
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Affiliation(s)
- Usman Elahi
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.,Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture, Faisalabad 38000, Pakistan
| | - Changchun Xu
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Wang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Lin
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shu-Geng Wu
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Hai-Jun Zhang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Guang-Hai Qi
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, National Engineering Research Center of Biological Feed, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Chinarak K, Panpipat W, Summpunn P, Panya A, Phonsatta N, Cheong LZ, Chaijan M. Insights into the effects of dietary supplements on the nutritional composition and growth performance of sago palm weevil (Rhynchophorus ferrugineus) larvae. Food Chem 2021; 363:130279. [PMID: 34120049 DOI: 10.1016/j.foodchem.2021.130279] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/09/2021] [Accepted: 05/31/2021] [Indexed: 11/16/2022]
Abstract
Nutritional composition and growth performance of sago palm weevil larvae (SPWL) fed with ground sago palm trunk mixed with different supplements including commercial pig feed, rice bran, cornmeal, soybean meal, and perilla seed were evaluated. SPWL fed with supplemented diets were richer in protein, lipid, and mineral contents (p < 0.05). Marked increases in polyunsaturated fatty acids (10.75-fold) and omega-3 fatty acids (25.42-fold) with the lowest n-6:n-3 ratio, atherogenicity index, and thrombogenicity index were found in SPWL fed with perilla seed (p < 0.05). Perilla seed, cornmeal, and soybean meal improved essential amino acid content and essential amino acid index of SPWL. Growth performance varied, depending on feed compositions, where a comparable or even greater effect was observed in SPWL fed with supplemented diets compared to control. Therefore, plant-based supplements, especially perilla seed, efficiently improved nutritional quality of SPWL, making them more attractive in terms of nutritional and economical value.
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Affiliation(s)
- Khanittha Chinarak
- Food Technology and Innovation Research Centre of Excellence, Department of Food Science and Innovation, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Worawan Panpipat
- Food Technology and Innovation Research Centre of Excellence, Department of Food Science and Innovation, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand.
| | - Pijug Summpunn
- Food Technology and Innovation Research Centre of Excellence, Department of Food Science and Innovation, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Atikorn Panya
- Food Biotechnology Research Unit, National Centre for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phaholyothin Rd., Khlong Nueng, Khlong Luang, Pathumthani 12120, Thailand
| | - Natthaporn Phonsatta
- Food Biotechnology Research Unit, National Centre for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phaholyothin Rd., Khlong Nueng, Khlong Luang, Pathumthani 12120, Thailand
| | - Ling-Zhi Cheong
- Department of Food Science and Engineering, School of Marine Science, Ningbo University, Ningbo 315211, China
| | - Manat Chaijan
- Food Technology and Innovation Research Centre of Excellence, Department of Food Science and Innovation, School of Agricultural Technology and Food Industry, Walailak University, Nakhon Si Thammarat 80160, Thailand
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Dalle Zotte A, Singh Y, Squartini A, Stevanato P, Cappellozza S, Kovitvadhi A, Subaneg S, Bertelli D, Cullere M. Effect of a dietary inclusion of full-fat or defatted silkworm pupa meal on the nutrient digestibility and faecal microbiome of fattening quails. Animal 2021; 15:100112. [PMID: 33573975 DOI: 10.1016/j.animal.2020.100112] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 10/07/2020] [Accepted: 10/09/2020] [Indexed: 01/08/2023] Open
Abstract
Silkworm (Bombyx mori L.) pupae are a by-product derived from silk production, which is often treated as waste and thus discarded: this can cause serious environmental problems and a loss of nutrients. Silkworm pupae are a rich source of protein and lipids, and the resulting protein meal can provide promising outcomes as livestock feed, notably for monogastric species. However, one possible issue that needs to be considered is the possible implication of the 1-Deoxynojirimycin (1-DNJ), a bio-compound of the silkworm that impairs glucose absorption, in poultry nutrition. Therefore, the present study evaluated the effect of the dietary inclusion of full-fat or defatted silkworm pupa meal (SWM) on the apparent digestibility of nutrients, feed choice and faecal microbiome in meat-producing quails. For the digestibility trial, a total of thirty-three 27-day-old Japanese quails (Coturnix coturnix japonica) were individually housed in digestibility cages and received three experimental diets: a control diet (control, commercial feed for fattening quails), and two other diets containing the 12.5% of either a full-fat SWM (SWM-FULL) or a defatted SWM (SWM-DEF). Subsequently, twenty-seven 33-day-old quails were simultaneously provided with Control, SWM-FULL and SWM-DEF diets for a 10-day feed choice trial. The results of the digestibility trial showed that the DM intake and excreta production were higher in both SWM groups than in the Control one (P < 0.001). The apparent digestibility of DM, organic matter, CP, ether extract, starch and energy was lower in both SWM groups than in the control group (P < 0.001), suggesting the possible implication of chitin and 1-DNJ. The feed choice test showed that quails preferred the Control diet (P < 0.001). From the microbiome analysis of the excreta, families such as Streptococcaceae (P < 0.05), Rikenellaceae and Eubacteriaceae (P < 0.01) and taxa at species level such as Lactobacillus delbrueckii (P < 0.05), Aneurinibacillus thermoaerophilus and Bacillus thermoamylovorans (P < 0.01) scored higher in SWM-FULL quails than in SWM-DEF and Control treatments. The present study demonstrated that a successful dietary inclusion of SWM for fattening quails needs to overcome the digestive criticalities caused by the of presence specific bio-compounds, namely chitin and 1-DNJ.
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Affiliation(s)
- A Dalle Zotte
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, Padova, Italy.
| | - Y Singh
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, Padova, Italy
| | - A Squartini
- Department of Agronomy, Food, Natural Resources, Animals and Environment, DAFNAE, University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, Padova, Italy
| | - P Stevanato
- Department of Agronomy, Food, Natural Resources, Animals and Environment, DAFNAE, University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, Padova, Italy
| | - S Cappellozza
- Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment (CREA - AA), Sericulture Laboratory of Padua, Via Eulero 6a, 35143, Padova, Italy
| | - A Kovitvadhi
- Department of Physiology, Faculty of Veterinary Medicine, Kasetsart University, 10900 Bangkok, Thailand
| | - S Subaneg
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, Padova, Italy; Department of Physiology, Faculty of Veterinary Medicine, Kasetsart University, 10900 Bangkok, Thailand
| | - D Bertelli
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 Modena, Italy
| | - M Cullere
- Department of Animal Medicine, Production and Health, MAPS, University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, Padova, Italy
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