Genetically modified crops in a 10-generation feeding trial on Japanese quails — Evaluation of its influence on birds’ performance and body composition

Sartowska, K.; Korwin-Kossakowska, A.; Sender, G.

doi:10.3382/ps/pev271

Cited by 9 publications

(13 citation statements)

References 6 publications

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“…Since the chickens of both groups received the same feed rate, respectively, its costs per 1 kg of growth in the first 4 and 8 weeks were lower in the experimental group by 3.2-3.7%, and for the entire period of the experiment (0-17 weeks) -by 2.9%. The following results on the feeding of chickens with GM feed were confirmed in studies on the feeding of quails for 10 generations of feed containing GM maize (Sartowska et al, 2015).…”

Section: Resultsmentioning

confidence: 54%

Effect of GM maize on metabolism and performance of chicken

Gaviley

Pankova

Katerynych

2021

Acta fytotechn zootechn

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Licensed under a Creative Commons Attribution 4.0 International License Genetically modified (GM) maize and conventional maize were tested experimentally to determine their effect on chicken serum biochemical parameters and metabolism. A total of 600 one day old parent stock chickens of breed White Plymouth Rock were divided into 2 experimental groups: K -diet based on traditional maize (control); D -a diet based on GM maize (experimental). During the experimental period (17 weeks), population vibility and feed consumption were monitored daily. At the age of 4, 8 and 17 weeks all birds were individually weighed. Blood samples for biochemical analyses were collected from chickens at 4 weeks and 12 weeks of age (n = 6). Analytical studies did not show significant changes in biochemical serum parameters in group D chickens. A significant difference between the groups of chickens receiving GM and traditional maize was found only by the content of lipids after 4 weeks (P <0.05) and cholesterol after 12 weeks of the experiment (P <0.05). Also noted increasing level of circulating immune complexes in serum of chickens that consumed feed from GM maize relative control at 32.2% (P <0.05) after 4 weeks of the experiment. However, the studied indicators of metabolism and immune response in birds were within the physiological range. Certain fluctuations in the parameters during the experiment were observed in both groups, which indicates that there is no connection between this fact and the feeding factor. In addition, optimal results were obtained in terms of feed conversion and body weight of poultry, regardless of the feeding ration. The body weight of chickens at the age of 17 weeks in both groups was in the range of 1,862.4-1,895.6 g, feed consumption per 1 kg of body weight gain was 3.65-3.76 kg, the livestock viability -96.6-97.3%. The results of the study do not indicate any danger to the metabolism and health of the bird due to the use of genetically modified feed, as no statistically significant differences within the studied parameters were observed. The noted certain small deviations fell within the limits of normal variations of the considered indicators and, thus, had no biological or toxicological value.

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Section: Resultsmentioning

confidence: 54%

Effect of GM maize on metabolism and performance of chicken

Gaviley

Pankova

Katerynych

2021

Acta fytotechn zootechn

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“…In an earlier 90-day safety assurance study with rats fed borer-protected maize, there were also no test article related changes in haematology parameters for the MON 810 maize fed animals (10). A series of Polish studies led the author to conclude that dietary GM maize did not affect the haematological parameters of pigs (23), Japanese quails (21), broiler chickens, or laying hens (25, 26). In the present investigation, blood creatinine concentration increased significantly in rats fed the GM diets.…”

Section: Discussionmentioning

confidence: 99%

Results of a 16-week safety assurance study with rats fed genetically modified Bt maize: effect on growth and health parameters

Szymczyk

Szczurek

Świątkiewicz

et al. 2018

Journal of Veterinary Research

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IntroductionThe influence of feeding genetically modified MON 810 hybrid maize on the growth and haematological and biochemical indices of rats was tested.Material and MethodsTwo conventional (non-GM) and two test (MON 810) lines of maize were used in semi-purified diets at the level of 40% w/w. The non-GM I, MON 810 I, non-GM II, and MON 810 II maize lines were near-isogenic. A total of 40 male 6-week-old Wistar-derived rats were assigned to four equal feeding groups corresponding to the four maize lines for 16 weeks. Overall, health, body weight gain, clinical pathology parameters, gross changes, and appearance of tissues were compared between groups.ResultsThere were no statistically significant differences in the weight gain or relative organ weights of rats, but there were some non diet-related histopathological changes in the liver, kidneys, and spleen. Except for creatinine level, no diet-related effects were observed in haematology or most of the biochemical indices. Transgenic DNA of MON 810 maize was not detected in the tissues or faeces nor in the DNA of E. coli isolated from the rectum digesta of rats given transgenic feeds. In our experiment, various metabolic indices of rats fed non-GM diets or genetically modified (MON 810) maize for 16 weeks were similar. No adverse nutrition-related health effects were detected.ConclusionMON 810 maize seems to be as safe as the conventional maize lines.

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“…Studies have found no difference in the productive performance or health of any beef cattle ( Erickson et al., 2003 ), dairy cattle ( Grant et al., 2003 ; Ipharraguerre et al., 2003 ; Combs and Hartnell, 2008 ), broiler ( Kan and Hartnell, 2004 ; Taylor et al., 2007a , 2007b , 2007c ); McNaughton et al. 2011 ), sheep ( Hartnell et al., 2005 ) or quail ( Sartowska et al., 2015 ) fed on GT-based feedstuffs. These analyses concerning livestock, however, do not address potential reproductive issues related to glyphosate or GBHs.…”

Section: Productive Performances Of Animals Fed On Gt Cropsmentioning

confidence: 99%

“…Unfortunately, very few studies have investigated the effects of these exposures on agriculturally important animals, and the majority of those that have, have given no concern to reproductive health and performance ( Erickson et al., 2003 ; Grant et al., 2003 ; Ipharraguerre et al., 2003 ; Taylor et al., 2007a , 2007b ; Kan and Hartnell, 2004 ; Hartnell et al., 2005 ; Combs and Hartnell, 2008 ; McNaughton et al. 2011 ; Sartowska et al., 2015 ). This is due, in part, to the fact that for an overwhelming majority of any livestock population, the reproductive health and performance is of no concern for a producer.…”

Section: Gbh As Potential Threat To Reproductive Health Of Livestockmentioning

confidence: 99%

Glyphosate-based herbicide formulations and reproductive toxicity in animals

Jarrell

Ahammad

Benson

2020

Veterinary and Animal Science

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The adoption of genetically engineered (GE) crops in agriculture has increased dramatically over the last few decades. Among the transgenic plants, those tolerant to the herbicide glyphosate are among the most common. Weed resistance to glyphosate-based herbicides (GBHs) has been on the rise, leading to increased herbicide applications. This, in turn, has led to increased glyphosate residues in feed. Although glyphosate has been considered to be generally safe to animal health, recent studies have shown that GBHs have potential to cause adverse effects in animal reproduction, including disruption of key regulatory enzymes in androgen synthesis, alteration of serum levels of estrogen and testosterone, damage to reproductive tissues and impairment of gametogenesis. This review emphasizes known effects of GBHs on reproductive health as well as the potential risk GBH residues pose to animal agriculture.

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Genetically modified crops in a 10-generation feeding trial on Japanese quails — Evaluation of its influence on birds’ performance and body composition

Cited by 9 publications

References 6 publications

Effect of GM maize on metabolism and performance of chicken

Effect of GM maize on metabolism and performance of chicken

Results of a 16-week safety assurance study with rats fed genetically modified Bt maize: effect on growth and health parameters

Glyphosate-based herbicide formulations and reproductive toxicity in animals

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