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Smith BL, Carlson AB, Fallers MN, Crumplar SS, Zimmermann CS, Mathesius CA, Mukerji P, McNaughton JL, Herman RA. Rodent and broiler feeding studies with maize containing genetically modified event DP-915635-4 show no adverse effects on health or performance. Food Chem Toxicol 2024; 189:114716. [PMID: 38735358 DOI: 10.1016/j.fct.2024.114716] [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: 12/14/2023] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/14/2024]
Abstract
Several regulatory agencies continue to require animal feeding studies to approve new genetically modified crops despite such studies providing little value in the safety assessment. Feeding studies with maize grain containing event DP-915635-4 (DP915635), a new corn rootworm management trait, were conducted to fulfill that requirement. Diets fed to Crl:CD®(SD) rats for 90 days contained up to 50% ground maize grain from DP915635, non-transgenic control, or non-transgenic reference hybrids (P1197, 6158, and 6365). Ross 708 broilers received phase diets containing up to 67% maize grain from each source for 42 days. Growth performance was compared between animals fed DP915635 and control diets; rats were further evaluated for clinical and neurobehavioral measures, ophthalmology, clinical pathology, organ weights, and gross and microscopic pathology, whereas carcass parts and select organ yields were determined for broilers. Reference group inclusion assisted in determining natural variation influence on observed significant differences between DP915635 and control groups. DP915635 maize grain diet consumption did not affect any measure evaluated in either feeding study. Results demonstrated DP-915635-4 maize grain safety and nutritional equivalency when fed in nutritionally adequate diets, adding to the existing literature confirming the lack of significant effects of feeding grain from genetically modified plants.
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Han L, Yang X, Wang W, Yang X, Dong L, Lin S, Li J, Liu X. Cord blood metabolomics reveals gestational metabolic disorder associated with anti-thyroid peroxidase antibodies positivity. BMC Pregnancy Childbirth 2022; 22:244. [PMID: 35331172 PMCID: PMC8952885 DOI: 10.1186/s12884-022-04564-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 03/04/2022] [Indexed: 12/01/2022] Open
Abstract
Background Thyroid disease is one of the common endocrine disorders affecting the pregnant women, in which thyroid autoimmunity can alter the progress and the outcome of pregnancy. Women with euthyroid status but anti-thyroid peroxidase (anti-TPO) antibodies positivity before pregnancy are prone to subclinical gestational hypothyroidism. However, the connections between anti-TPO antibodies positivity and gestational hypothyroidism remain largely unknown. The aim of the present study is to investigate the differences of fetal metabolic profile at birth according to maternal anti-TPO status. Methods We performed 1H-NMR metabolomics on cord blood of a nested case control cohort of 22 pregnant women with matched thyroid hormone levels and demographic data, including 11 women with euthyroid status but anti-thyroid antibodies positivity (into the anti-TPO antibodies positivity group) and 11 matched women as controls with euthyroid status and negative anti-thyroid antibodies (into the control group). Results Distinct metabolic profiles were observed between the anti-TPO antibody positivity group and the nested control group, from which a total of 10 metabolites with between-group altered abundances were structurally identified. Five out of the 10 metabolites were up-regulated in the anti-TPO antibodies positivity group, including D-Glucose, L-Glutamine, 3-Hydroxybutyric acid, Myo-Inositol, Creatinine. The other 5 metabolites were down-regulated in the anti-TPO antibodies positivity group, including L-Leucine, L-Lysine, L-Glutamic acid, L-Tyrosine, and L-Phenylalanine. All the 10 metabolites have been previously reported to be correlated with hypothyroidism. Metabolite set enrichment analysis and pathway analysis suggested that amino acid metabolism pathways (especially the phenylalanine metabolism) were associated with anti-TPO antibodies positivity. Conclusion The results of this study suggested that fetal metabolic disorder is correlated with anti-TPO antibodies positivity, representing by abundance alteration of hypothyroidism associated metabolites and the related disturbance of amino acid metabolism pathways. Supplementary Information The online version contains supplementary material available at 10.1186/s12884-022-04564-8.
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Affiliation(s)
- Lingna Han
- Department of Physiology, Changzhi Medical College, Changzhi, 046000, People's Republic of China
| | - Xin Yang
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China
| | - Wen Wang
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China
| | - Xueliang Yang
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China
| | - Lina Dong
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China
| | - Shumei Lin
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China.
| | - Jianguo Li
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan, 030006, People's Republic of China. .,Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, 92 Wucheng Road, Taiyuan, 030006, People's Republic of China.
| | - Xiaojing Liu
- The First Affiliated Hospital of Xi'an JiaoTong University, 277 Yanta West Road, Xi'an, 710061, People's Republic of China.
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Şapcı Selamoğlu H. DNA barcoding of two narrow endemic plants; Astragalus argaeus and Astragalus stenosemioides from Mount Erciyes, Turkey. CONSERV GENET RESOUR 2021. [DOI: 10.1007/s12686-021-01239-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Tran DH, Schonewille JT, Pukkung C, Khempaka S. Growth performance and accretion of selected amino acids in response to three levels of dietary lysine fed to fast- and slow-growing broilers. Poult Sci 2021; 100:100998. [PMID: 33610901 PMCID: PMC7905463 DOI: 10.1016/j.psj.2021.01.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/28/2020] [Accepted: 01/02/2021] [Indexed: 11/17/2022] Open
Abstract
Literature data indicate that feed intake is sensitive to the dietary Lys content particularly in fast-growing birds. From a conceptual and a practical viewpoint, an interaction between genotype (i.e., fast-growing vs. slow-growing birds) and dietary Lys content is of interest, but it needs confirmation owing to a dearth of studies addressing this issue. A study was conducted with 266 Cobb 500 birds and 266 Thai native crossbreed birds serving as models for fast-growing broilers (FGB) and slow-growing broilers (SGB), respectively. Within genotype, chicks were randomly allocated to diets containing either a high (H-LYS = 1.36%), medium (1.17%), or low Lys (1.01%) content. Growth performance and the accretion of protein and selected amino acids were determined in birds from 1 to 21 d of age. Treatments were arranged in a factorial design with 6 replications/treatment. Low Lys vs. H-LYS caused a 42.1% lower feed intake in FGB (P < 0.001), but not in SGB (P = 0.596). The feed conversion ratio (FCR (g feed/g BW gain)) was lowest in FGB (P < 0.001) and increased with decreasing dietary Lys contents (P < 0.001). The Lys induced increase in FCR, however, was more pronounced in SGB (P = 0.025). The absolute protein gain (g/bird) was influenced by the Lys content of feed and decreased by ∼54% and ∼23% in FGB and SGB, respectively (P < 0.001). The efficiency (% of intake) of protein accretion was found to be greater in FGB (P ≤ 0.001) and decreased with decreasing dietary Lys (P ≤ 0.001). The efficiency of Lys accretion was found to be negatively affected by the dietary Lys content in FGB (P < 0.001) but not SGB (Pgenotype × dietary Lys = 0.008). It can be concluded that a dietary Lys content of 1.01% does not safeguard both growth performance and body protein accretion efficiency in both FGB and SGB. The suboptimal growth performance in FGB, but not SGB, is partially counteracted by a Lys-induced reduction in feed intake.
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Affiliation(s)
- D H Tran
- School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - J Th Schonewille
- Department of Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - C Pukkung
- School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - S Khempaka
- School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand.
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Smith BL, Zimmermann CS, Carlson AB, Mathesius CA, Mukerji P, McNaughton JL, Walker CA, Roper JM. Evaluation of the safety and nutritional equivalency of maize grain with genetically modified event DP-Ø23211-2. GM CROPS & FOOD 2021; 12:396-408. [PMID: 34459369 PMCID: PMC8409786 DOI: 10.1080/21645698.2021.1963614] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/27/2021] [Accepted: 07/29/2021] [Indexed: 12/01/2022]
Abstract
Feeding studies were conducted with rats and broiler chickens to assess the safety and nutrition of maize grain containing event DP-Ø23211-2 (DP23211), a newly developed trait-pyramid product for corn rootworm management. Diets containing 50% ground maize grain from DP23211, non-transgenic control, or non-transgenic reference hybrids (P0928, P0993, and P1105) were fed to Crl:CD®(SD) rats for 90 days. Ross 708 broilers were fed phase diets containing up to 67% maize grain from each source for 42 days. Body weight, gain, and feed conversion were determined for comparisons between animals fed DP23211 and control diets in each study. Additional measures included clinical and neurobehavioral evaluations, ophthalmology, clinical pathology, organ weights, and gross and microscopic pathology for rats, and carcass parts and select organ yields for broilers. Reference groups were included to determine if any observed significant differences between DP23211 and control groups were likely due to natural variation. No diet-related effects on mortality or evaluation measures were observed between animal fed diets produced with DP23211 maize grain and animal fed diets produced with control maize grain. These studies show that maize grain containing event DP-Ø23211-2 is as safe and nutritious as non-transgenic maize grains when fed in nutritionally adequate diets. The results are consistent with previously published studies, providing further demonstration of the absence of hazards from edible-fraction consumption of genetically modified plants.
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Affiliation(s)
- Brenda L. Smith
- Regulatory & Stewardship, Corteva Agriscience, Johnston, IA, USA
| | | | - Anne B. Carlson
- Regulatory & Stewardship, Corteva Agriscience, Johnston, IA, USA
| | | | - Pushkor Mukerji
- Regulatory & Stewardship, Corteva Agriscience, Newark, DE, USA
| | | | - Carl A. Walker
- Regulatory & Stewardship, Corteva Agriscience, Johnston, IA, USA
| | - Jason M. Roper
- Regulatory & Stewardship, Corteva Agriscience, Newark, DE, USA
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Wang H, Wang X, Zhao J, Jiao H, Lin H. Low protein diet supplemented with crystalline amino acids suppressing appetite and apo-lipoprotein synthesis in laying hens. Anim Feed Sci Technol 2020. [DOI: 10.1016/j.anifeedsci.2020.114533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Ruan D, Fouad AM, Zhang YN, Wang S, Chen W, Xia WG, Jiang SQ, Yang L, Zheng CT. Effects of dietary lysine on productivity, reproductive performance, protein and lipid metabolism-related gene expression in laying duck breeders. Poult Sci 2020; 98:5734-5745. [PMID: 31265113 DOI: 10.3382/ps/pez361] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 06/09/2019] [Indexed: 02/01/2023] Open
Abstract
This study investigated whether dietary lysine (Lys) affects productive performance and expression of genes related to protein and lipid metabolism in laying duck breeders. Longyan duck breeders (n = 540, 19 wk of age) were randomly assigned to 6 groups with 6 replicates of 15 birds each. Breeders were fed diets with 6 total Lys levels (6.4, 7.2, 8.0, 8.8, 9.6, and 10.4 g/kg) for 26 wk duration. Egg production, egg weight, egg mass, feed conversion ratio, hatchability, hatchling weight, albumen weight, eggshell weight, yolk weight, and yolk proportion increased with dietary Lys levels (P < 0.05). Dietary Lys level had a linear (P < 0.05) and quadratic (P < 0.05) effects on maternal hepatic expression of mechanistic target of rapamycin, eukaryotic translation initiation factor 4E binding protein 1, ubiquitin conjugating enzyme E2K (UBE2K), cathepsin B (CTSB), and quadratically (P < 0.05) increased the concentrations of plasma Lys, leucine, threonine, and tryptophan in duck breeders. In contrast, maternal dietary Lys suppressed expression of proteasome 26S subunit, UBE2K, and CTSB in the liver of hatchlings. Moreover, relative expression of peroxisome proliferator-activated receptors alpha, carnitine palmitoyltransferase 1A, and very low density apolipoprotein-II increased linearly (P < 0.05) and quadratically (P < 0.05), and that of VLDL receptor (VLDLR) decreased quadratically (P < 0.05) in the liver of duck breeders with increasing dietary Lys levels; hepatic triglyceride and cholesterol contents were reduced. Maternal dietary Lys suppressed hepatic expression of VLDLR in the hatchlings. A diet containing 8.6 g Lys/kg promoted protein turnover and lipid metabolism in laying duck breeders, which positively reflected in the productivity and reproductive performance.
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Affiliation(s)
- D Ruan
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture; State Key Laboratory of Livestock and Poultry Breeding; Guangdong Pubic Laboratory of Animal Breeding and Nutrition; Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, P. R. China.,College of Animal Science, South China Agricultural University, Guangzhou 510640, P. R. China
| | - A M Fouad
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture; State Key Laboratory of Livestock and Poultry Breeding; Guangdong Pubic Laboratory of Animal Breeding and Nutrition; Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, P. R. China.,Department of Animal Production, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
| | - Y N Zhang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture; State Key Laboratory of Livestock and Poultry Breeding; Guangdong Pubic Laboratory of Animal Breeding and Nutrition; Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, P. R. China
| | - S Wang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture; State Key Laboratory of Livestock and Poultry Breeding; Guangdong Pubic Laboratory of Animal Breeding and Nutrition; Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, P. R. China
| | - W Chen
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture; State Key Laboratory of Livestock and Poultry Breeding; Guangdong Pubic Laboratory of Animal Breeding and Nutrition; Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, P. R. China
| | - W G Xia
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture; State Key Laboratory of Livestock and Poultry Breeding; Guangdong Pubic Laboratory of Animal Breeding and Nutrition; Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, P. R. China
| | - S Q Jiang
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture; State Key Laboratory of Livestock and Poultry Breeding; Guangdong Pubic Laboratory of Animal Breeding and Nutrition; Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, P. R. China
| | - L Yang
- College of Animal Science, South China Agricultural University, Guangzhou 510640, P. R. China
| | - C T Zheng
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture; State Key Laboratory of Livestock and Poultry Breeding; Guangdong Pubic Laboratory of Animal Breeding and Nutrition; Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou 510640, P. R. China
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8
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Fouad AM, Chen W, Ruan D, Wang S, Xia W, Zheng C. Effects of dietary lysine supplementation on performance, egg quality, and development of reproductive system in egg-laying ducks. JOURNAL OF APPLIED ANIMAL RESEARCH 2017. [DOI: 10.1080/09712119.2017.1308868] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ahmed Mohamed Fouad
- Institute of Animal Science, Guangdong Academy of Agricultural Science, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, People’s Republic of China
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Wei Chen
- Institute of Animal Science, Guangdong Academy of Agricultural Science, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, People’s Republic of China
| | - Dong Ruan
- Institute of Animal Science, Guangdong Academy of Agricultural Science, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, People’s Republic of China
| | - Shuang Wang
- Institute of Animal Science, Guangdong Academy of Agricultural Science, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, People’s Republic of China
| | - Weiguang Xia
- Institute of Animal Science, Guangdong Academy of Agricultural Science, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, People’s Republic of China
| | - Chuntian Zheng
- Institute of Animal Science, Guangdong Academy of Agricultural Science, Key Laboratory of Animal Nutrition and Feed Science (South China) of Ministry of Agriculture, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangzhou, People’s Republic of China
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Kheiri F, Alibeyghi M. Effect of different levels of lysine and threonine on carcass characteristics, intestinal microflora and growth performance of broiler chicks. ITALIAN JOURNAL OF ANIMAL SCIENCE 2017. [DOI: 10.1080/1828051x.2017.1302824] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Farshid Kheiri
- Department of Animal Sciences, Islamic Azad University Shahrekord, Shahrekord, Iran
| | - Mohsen Alibeyghi
- Department of Animal Sciences, Islamic Azad University Shahrekord, Shahrekord, Iran
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Zhai W, Peebles E, Wang X, Gerard P, Olanrewaju H, Mercier Y. Effects of dietary lysine and methionine supplementation on Ross 708 male broilers from 21 to 42 d of age (III): serum metabolites, hormones, and their relationship with growth performance. J APPL POULTRY RES 2016. [DOI: 10.3382/japr/pfw004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Li XY, Tang L, Hu K, Liu Y, Jiang WD, Jiang J, Wu P, Chen GF, Li SH, Kuang SY, Feng L, Zhou XQ. Effect of dietary lysine on growth, intestinal enzymes activities and antioxidant status of sub-adult grass carp (Ctenopharyngodon idella). FISH PHYSIOLOGY AND BIOCHEMISTRY 2014; 40:659-671. [PMID: 24174167 DOI: 10.1007/s10695-013-9874-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Accepted: 09/30/2013] [Indexed: 06/02/2023]
Abstract
The dietary lysine requirement of sub-adult grass carp (460 ± 1.5 g) was assessed by feeding diets supplemented with grade levels of lysine (6.6, 8.5, 10.8, 12.9, 15.0 and 16.7 g kg(-1) diet) for 56 days. The test diets (28% CP) contained fish meal, casein and gelatin as sources of intact protein, supplemented with crystalline amino acids. Weight gain (WG), feed intake and feed efficiency were significantly improved with increasing levels of lysine up to 12.9 g kg(-1) diet and thereafter declined (P < 0.05). Quadratic regression analysis of WG at 95% maximum response indicated lysine requirement was 10.9 g kg(-1) diet. Activities of trypsin, chymotrypsin, lipase, Na(+), K(+)-ATPase and alkaline phosphatase in intestine, creatine kinase activity in proximal and mid-intestine responded similar to WG (P < 0.05). In addition, lipid and protein oxidation decreased with increasing levels of lysine up to certain values and increased thereafter (P < 0.05); the anti-hydroxyl radical capacity, dismutase, catalase, glutathione peroxidase, glutathione reductase, glutathione-S-transferase (GST) activities and glutathione content were increased with increasing dietary lysine levels up to certain values in the detected tissues, except for hepatopancreatic GST. Requirement estimated on the basis of malondialdehyde content in intestine and hepatopancreas was 10.6 and 9.53 g lysine kg(-1) diet, respectively.
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Affiliation(s)
- Xue-Yin Li
- Animal Nutrition Institute, Sichuan Agricultural University, Ya'an, 625014, Sichuan, China
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Mushtaq MMH, Parvin R, Kim J. Carcass and body organ characteristics of broilers supplemented with dietary sodium and sodium salts under a phase feeding system. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2014; 56:4. [PMID: 26290693 PMCID: PMC4534186 DOI: 10.1186/2055-0391-56-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 04/07/2014] [Indexed: 11/23/2022]
Abstract
The effect of sodium and sodium salts on carcass and body organ characteristics of broilers under a four phase feeding program were investigated. A basal diet (0.08% dNa with NaCl) was formulated and one of two sources of dNa (NaHCO3 and Na2SO4) were supplemented to obtain four different percentages of dNa (0.17, 0.26, 0.35, and 0.44%) for each treatment. There was a linear decrease in dressing percentage (DP) with source × level interaction (p ≤ 0.001), while there was a linear increase in breast yield and thigh yield with increasing dNa supplementation (p ≤ 0.001). Chicks fed 0.35% NaHCO3 and 0.44% dNa Na2SO4 supplemental salts had lower abdominal fat (p ≤ 0.04). Chicks that received increasing levels of dNa (from 0.17 to 0.44%) showed increasing gizzard weight (p ≤ 0.002) and decreasing spleen weight (p ≤ 0.02). When both salts were supplemented at 0.26% dNa, the chicks showed their lowest bursa weight (p ≤ 0.001). Consequently, chicks at higher dNa showed an increase in breast and thigh meat yield, and increasing capacity of their digestive organ. The higher levels of dNa should be tested with other cations and anions to fully understand acid base homoeostasis.
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Affiliation(s)
- Mirza Muhammad Haroon Mushtaq
- Poultry Science Division, National Institute of Animal Science, RDA, 114, Sinbang 1-gil, Seonghwan-eup, Seobuk-gu, Cheonan-si, Chungcheongnam-do 331–801 Republic of Korea
| | - Rana Parvin
- Poultry Science Division, National Institute of Animal Science, RDA, 114, Sinbang 1-gil, Seonghwan-eup, Seobuk-gu, Cheonan-si, Chungcheongnam-do 331–801 Republic of Korea
| | - Jihyuk Kim
- Poultry Science Division, National Institute of Animal Science, RDA, 114, Sinbang 1-gil, Seonghwan-eup, Seobuk-gu, Cheonan-si, Chungcheongnam-do 331–801 Republic of Korea
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McNaughton J, Roberts M, Rice D, Smith B, Hinds M, Delaney B, Iiams C, Sauber T. Evaluation of broiler performance and carcass yields when fed diets containing corn grain from transgenic stacked-trait product DAS-Ø15Ø7-1xDAS-59122-7xMON-ØØ81Ø-6xMON-ØØ6Ø3-6. J APPL POULTRY RES 2011. [DOI: 10.3382/japr.2011-00367] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Yang X, Zhong L, An X, Zhang N, Zhang L, Han J, Yao J, Cote C, Sun Y. Effects of diets supplemented with zinc and manganese on performance and related parameters in laying hens. Anim Sci J 2011; 83:474-81. [PMID: 22694331 DOI: 10.1111/j.1740-0929.2011.00976.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Iron is often found to be of excessive concentrations in laying hens' diets, which may cause antagonistic interactions with other minerals. This study was conducted to investigate how to supplement Zn and Mn in the diets without Fe supplementation. In experiment 1, 420 18-week Lohmann Brown layers were fed a basal diet or a basal diet supplemented with 30-0, 65-30 and 100-60 mg/kg of Zn and Mn, respectively. In experiment 2, 360 40-week Lohmann Brown layers were fed a basal diet or a basal diet supplemented with 15-0, 35-0 and 55-15 mg/kg of Mn and Zn, respectively. Minerals were supplemented in the form of sulfate. Egg production was improved by supplementing 30 mg/kg Zn or 65 mg/kg Zn in combination with 30 mg/kg Mn in experiment one. In experiment two, a significant reduction of egg performance occurred with 35 mg/kg Mn supplementation. Mn and/or Zn supplementation increased eggshell thickness in experiment one, and decreased yolk cholesterol in both experiments. Mn and/or Zn supplementation increased Zn and Mn excretion in both experiments. Serum growth hormone (GH), thyroxine (T(4) ), and insulin levels, or alkaline phosphatase (AP) activity were not affected by treatments; serum estrogen (E(2) ) and triiodothyronine (T(3) ) were different but there was no consistency by dietary treatments. This study demonstrates that 30 mg/kg supplemental Zn is necessary to obtain maximal egg production, and there seems to be no need to supply Mn in this type of diet.
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Affiliation(s)
- Xiaojun Yang
- College of Animal Science and Technology, Northwest A & F University, Yangling, Shaanxi, China
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Kerr R, Holladay J, Holladay S, Tannenbaum L, Selcer B, Meldrum B, Williams S, Jarrett T, Gogal R. Oral lead bullet fragment exposure in northern bobwhite (Colinus virginianus). ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2011; 61:668-676. [PMID: 21360077 DOI: 10.1007/s00244-011-9654-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Accepted: 02/07/2011] [Indexed: 05/30/2023]
Abstract
Lead (Pb) is a worldwide environmental contaminant known to adversely affect multiple organ systems in both mammalian and avian species. In birds, a common route of exposure is via oral ingestion of lead particles. Data are currently lacking for the retention and clearance of Pb bullet fragments in gastrointestinal (GI) tract of birds while linking toxicity with blood Pb levels. In the present study, northern bobwhite quail fed a seed-based diet were orally gavaged with Pb bullet fragments (zero, one or five fragments/bird) and evaluated for rate of fragment clearance, and changes in peripheral blood, renal, immune, and gastrointestinal parameters. Based on radiographs, the majority of the birds cleared or absorbed the fragments by seven days, with the exception of one five-fragment bird which took between 7 and 14 days. Blood Pb levels were higher in males than females, which may be related to egg production in females. In males but not females, feed consumption, body weight gain, packed cell volume (PCV), plasma protein concentration, and δ-aminolevulinic acid dehydratase (δ-ALAD) activity were all adversely affected by five Pb fragments. Birds of both sexes that received a single Pb fragment displayed depressed δ-ALAD, suggesting altered hematologic function, while all birds dosed with five bullet fragments exhibited greater morbidity.
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Affiliation(s)
- Richard Kerr
- Department of Anatomy and Radiology, College of Veterinary Medicine, University of Georgia, Athens, USA
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Bahadur V, Haldar S, Ghosh TK. Assessment of the Efficacy of L-Lysine Sulfate vis-à-vis L-Lysine Hydrochloride as Sources of Supplemental Lysine in Broiler Chickens. Vet Med Int 2010; 2010. [PMID: 20706643 PMCID: PMC2913816 DOI: 10.4061/2010/964076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2010] [Accepted: 06/10/2010] [Indexed: 11/20/2022] Open
Abstract
In this study the effects of L-lysine hydrochloride (containing 78.8% available lysine as crystalline lysine) and L-lysine sulfate (containing 51% available lysine in bacterial cell mass) as source of supplemental lysine in broiler chickens was assessed. The basal diet was supplemented with either L-lysine hydrochloride or L-lysine sulfate to meet lysine requirement. Lysine supplementation irrespective of source improved (P < .05) live weight and food conversion. Live weight and food conversion ratio of the L-lysine sulfate group was superior (P < .05) to the L-lysine hydrochloride group. Supplementation of lysine to the basal diet improved breast meat yield (P < .05). Meat protein content and protein accretion increased (P < .01) when L-lysine sulfate was supplemented. Nutrient metabolizability, N retention, protein utilization efficiency and live weight gain : lysine intake ratio also improved (P < .01) with L-lysine sulfate. A fasting trial conducted after the completion of the feeding trial indicated that the birds receiving L-lysine sulfate retained more of their live weight than the control and the L-lysine hydrochloride dietary groups (P < .05). It was concluded that due to the retained bacterial cell mass, L-lysine sulfate may be a superior source of supplemental lysine than L-lysine hydrochloride for broiler chickens.
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Affiliation(s)
- Vijay Bahadur
- Department of Animal Nutrition, Faculty of Veterinary & Animal Sciences, West Bengal University of Animal & Fishery Sciences, 37 Kshudiram Bose Sarani, Kolkata 700037, India
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McNaughton J, Roberts M, Smith B, Rice D, Hinds M, Rood T, Layton R, Lamb I, Delaney B. Comparison of broiler performance and carcass yields when fed diets containing transgenic maize grains from event DP-O9814O-6 (Optimum GAT), near-isogenic control maize grain, or commercial reference maize grains. Poult Sci 2009; 87:2562-72. [PMID: 19038812 DOI: 10.3382/ps.2008-00017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A genetically modified maize (Zea mays L.) line that contains the Optimum GAT trait (event DP-Ø9814Ø-6; 98140) was produced by integration of the gat4621 and zm-hra genes. The expressed GAT4621 and ZM-HRA proteins confer tolerance to the herbicidal active ingredient glyphosate and acetolactate synthase-inhibiting herbicides, respectively. The objective of this study was to compare the nutritional performance of 98140 maize grain to nontransgenic maize grain in a 42-d feeding trial in broiler chickens. Diets were prepared using grain from untreated 98140 plants and from plants treated with an in-field application of herbicides (98140 + Spray). For comparison, additional diets were produced with maize grain obtained from the nontransgenic near-isogenic control (control) and nontransgenic commercial reference Pioneer brand hybrids 33J56, 33P66, and 33R77. Diets were fed to Ross x Cobb broilers (n = 120/group, 50% male and 50% female) in 3 phases: starter, grower, and finisher containing 58.5, 64, and 71.5% maize grain, respectively. No statistically significant differences were observed in mortality, growth performance variables, or carcass and organ yields between broilers consuming diets produced with maize grains from unsprayed or sprayed 98140 and those consuming diets produced with near-isogenic control maize grain. Additionally, all performance and carcass variables from control, 98140, and 98140 + Spray test maize treatment groups were within tolerance intervals constructed using data from reference maize groups. Based on these results, it was concluded that 98140 maize grain (unsprayed or sprayed with a herbicide mixture) was nutritionally equivalent to nontransgenic control maize with comparable genetic background.
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Affiliation(s)
- J McNaughton
- AHPharma, 116 W. Chestnut St, Salisbury, MD 21801, USA.
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18
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McNaughton J, Roberts M, Smith B, Rice D, Hinds M, Sanders C, Layton R, Lamb I, Delaney B. Comparison of broiler performance when fed diets containing event DP-3O5423-1, nontransgenic near-isoline control, or commercial reference soybean meal, hulls, and oil. Poult Sci 2008; 87:2549-61. [PMID: 19038811 DOI: 10.3382/ps.2007-00467] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023] Open
Abstract
DP-3Ø5423-1 (305423) is a genetically modified soybean that was produced by biolistic insertion of the gm-fad2-1 gene fragment and gm-hra genes into the germline of soybean seeds. Expression of gm-fad2-1 results in greater concentrations of oleic acid (18:1) by suppressing expression of the endogenous FAD2-1 gene, which encodes an n-6 fatty acid desaturase enzyme that catalyzes desaturation of 18:1 to linoleic acid (18:2). The GM-HRA protein expressed by the gm-hra gene is a modified version of the soybean acetolactate synthase enzyme that is used as a selectable marker during transformation. A 42-d feeding trial was conducted with broiler chickens to compare the nutritional performance of 305423 soybeans with nontransgenic soybeans. Diets were prepared using processed fractions (meal, hulls, and oil) from 305423 soybean plants. For comparison, additional diets were produced with soybean fractions obtained from a nontransgenic near-isoline (control) and nontransgenic commercial Pioneer brand varieties (93B86, 93B15, and 93M40). Diets were fed to Ross x Cobb broilers (n = 120/group, 50% male and 50% female) in 3 phases. Starter, grower, and finisher diets contained 26.5, 23, and 21.5% soybean meal, respectively. Soybean hulls and oil were added at 1.0 and 0.5%, respectively, across all diets in each phase. No statistically significant differences were observed in growth performance (BW, mortality, feed efficiency), organ yield (liver and kidney), or carcass yield (breast, thigh, leg, wing, and abdominal fat) variables between broilers consuming diets prepared with isolated fractions from 305423 or near-isoline control soybean. Additionally, all performance and carcass variables from control and 305423 soybean treatment groups fell within tolerance intervals constructed for each response variable using data from broilers fed diets prepared with reference soybean fractions. Based on the results from this study, it was concluded that 305423 soybeans were nutritionally equivalent to non-transgenic control soybeans with a comparable genetic background.
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Affiliation(s)
- J McNaughton
- AHPharma, 116 W. Chestnut St., Salisbury, MD 21801, USA.
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McNaughton J, Roberts M, Smith B, Rice D, Hinds M, Schmidt J, Locke M, Brink K, Bryant A, Rood T, Layton R, Lamb I, Delaney B. Comparison of broiler performance when fed diets containing event DP-356Ø43-5 (Optimum GAT), nontransgenic near-isoline control, or commercial reference soybean meal, hulls, and oil. Poult Sci 2007; 86:2569-81. [PMID: 18029803 DOI: 10.3382/ps.2007-00140] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023] Open
Abstract
Event DP-356Ø43-5 (356043; Optimum GAT) is a genetically modified soybean (Glycine max) that was produced by insertion of the gat4601 and gm-hra genes. The expression products of these genes are the glyphosate acetyltransferase 4601 and acetolactate synthase proteins, respectively. Expression of the glyphosate acetyltransferase 4601 protein confers tolerance in planta to the herbicidal active ingredient glyphosate, whereas expression of the acetolactate synthase protein confers tolerance to sulfonylurea and imidazolinone herbicides. The objective of this study was to compare the nutritional equivalence of 356043 soybeans to nontransgenic soybeans in a 42-d feeding trial in broiler chickens. Diets were prepared using processed fractions (meal, hulls, and oil) from untreated 356043 soybean plants or from soybean plants treated with a mixture of glyphosate, chlorimuron, and thifensulfuron (356043 + Gly/SU). For comparison, additional diets were produced with soybean fractions obtained from a nontransgenic near-isoline (control; 091) and nontransgenic commercial Pioneer varieties (93B86, 93B15, and 93M40). Diets were fed to Ross x Cobb broilers (n = 120/group, 50% male and 50% female) in 3 phases. Starter diets contained 30% soybean meal, grower diets 26% soybean meal, and finisher diets 21.5% soybean meal. Soybean hulls and oil were added at 1.0 and 0.5%, respectively, across all diets in each phase. No statistically significant differences were observed in mortality, growth performance variables, or carcass and organ yields between broilers consuming diets produced with 356043 or 356043 + Gly/SU soybean fractions and those consuming diets produced with near-isoline control soybean fractions. Additionally, all performance and carcass variables from control, 356043, and 356043 + Gly/SU soybean treatment groups fell within the tolerance intervals constructed using data from reference soybean groups. Based on the results from this study, it was concluded that 356043 soybean was nutritionally equivalent to nontransgenic control soybean with a comparable genetic background.
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Affiliation(s)
- J McNaughton
- Solution BioSciences, 2028 Northwood Drive, Salisbury, MD 21801, USA.
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Hevrøy EM, El-Mowafi A, Taylor RG, Olsvik PA, Norberg B, Espe M. Lysine intake affects gene expression of anabolic hormones in Atlantic salmon, Salmo salar. Gen Comp Endocrinol 2007; 152:39-46. [PMID: 17400223 DOI: 10.1016/j.ygcen.2007.02.015] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2006] [Revised: 02/07/2007] [Accepted: 02/13/2007] [Indexed: 11/23/2022]
Abstract
Nutritional factors influence regulation of the growth hormone (GH) and the insulin-like growth factor (IGF) system in fish, but so far there are no published studies describing how single indispensable amino acids influence these systems. Therefore, the present study aimed to test whether lysine (Lys) intake at low (LL=2.85 g/16 gN), medium (ML=4.91 g/16 gN) and high levels (HL=9.19 g/16 gN) affected the expression of genes related to the GH-IGF system (i.e. GH receptor, GH-R, IGF-I, IGF-II, IGF binding protein 1, IGFBP-1, IGF-I receptor IGF-IR) in Atlantic salmon during seawater growth phase. Salmon fed the HL diet significantly up-regulated hepatic IGF-I mRNA level by a factor of 2.2 as compared to those with medium Lys intake. In addition a significant up-regulation of 2.7-fold in muscle IGF-II mRNA was present. Low Lys intake decreased the nitrogen deposition and muscle protein accretion in fish and significantly down-regulated hepatic IGFBP-1 as well as muscle GH-R and IGF-II, as compared to those fed the ML diet. mRNA of IGF-IR on the other hand was not affected by Lys intake. High Lys intake resulted in a 7-fold up-regulation of muscle IGF-II mRNA level as compared to low Lys intake, and thus might be an important local anabolic regulator in fast muscle tissue. The single indispensable amino acid Lys indeed affected signalling through the genes of IGF-I, IGFBP-1 in hepatic tissue and GH-R, IGF-II in fast muscle in Atlantic salmon. Concomitantly the higher Lys intake increased nitrogen deposition to a certain level.
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Affiliation(s)
- E M Hevrøy
- National Institute of Nutrition and Seafood Research (NIFES), PO Box 2029, Nordnes, N-5817 Bergen, Norway.
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Enhancement of Intramuscular Fat Content in Longissimus Dorsi Muscle of Finishing Pigs Fed a Low Lysine Diet Including Bread Crumbs. ACTA ACUST UNITED AC 2007. [DOI: 10.5938/youton.44.8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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