The effect of gamma‐irradiation and pasteurisation on the composition of dry cat food formulation

Caulfield, Catherine; Kelly, John; Cassidy, Joseph

doi:10.1096/fasebj.21.6.lb60-c

Cited by 2 publications

(3 citation statements)

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“…Vitamins contain numerous double bonds, meaning that they can significantly increase the energy absorption of γ-rays [36]. This might explain why the higher dose of γ-ray irradiation resulted in decreased content of vitamins B1 and C [36]. However, γ-ray irradiation had no effect on the vitamin A and E content in the samples, and this finding requires further investigation.…”

Section: Discussionmentioning

confidence: 96%

“…Although the bulk density of the multivitamin premixes was small and the material was fluffy, elimination of microorganisms in vitamin complexes B and C required 9 kGy of irradiation, likely due to their composition. Vitamins contain numerous double bonds, meaning that they can significantly increase the energy absorption of γ-rays [36]. This might explain why the higher dose of γ-ray irradiation resulted in decreased content of vitamins B1 and C [36].…”

Section: Discussionmentioning

confidence: 99%

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Effects of Gamma-Ray Irradiation of Bacteria Colonies in Animal Feeds and on Growth and Gut Health of Weaning Piglets

Wei,

Yang,

Jiang

et al. 2023

Animals

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Animal feeds contain a substantial number and diversity of microorganisms, and some of them have pathogenic potential. The objectives of this study were to investigate the effects of different doses of gamma (γ)-ray irradiation on the bacteria count in different types of feed and then to test the effect of γ-ray-irradiation-treated fishmeal on the gut health and growth performance of weaning piglets. In trial 1, three fishmeal samples, two feather meal samples, three meat meal samples, three soybean meal samples, and three vitamin complexes were treated with γ-ray irradiation doses of 0, 3, 6, or 9 kGy. The 6 and 9 kGy doses eliminated most of the bacteria in the feed but also resulted in a loss of vitamin C and B1. In trial 2, 96 weaning piglets were fed one of the following three diets with eight replicates (pens) per group over a 14-day period: (1) the control diet—the basal diet supplemented with 6% fishmeal with a low bacteria count (40 CFU/g) and no E. coli; (2) the fishmeal-contaminated diet (FM-contaminated) diet—the basal diet supplemented with 6% fishmeal with a high bacteria count (91,500 CFU/g) and E. coli contamination; and (3) the irradiated fishmeal (irradiated FM) diet—the basal diet supplemented with γ-ray-irradiation-treated E. coli-contaminated fishmeal. The piglets that received the FM-contaminated diet had significantly lower average daily gain and a greater diarrhea index compared to those fed the control diet, whereas γ-ray irradiation treatment abrogated the negative effect of the E. coli-contaminated fishmeal. Collectively, γ-ray irradiation at a dose of 6–9 kGy was sufficient to eliminate the microorganisms in the feed, thereby benefitting the growth performance and gut health of the weaning piglets.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Effects of Gamma-Ray Irradiation of Bacteria Colonies in Animal Feeds and on Growth and Gut Health of Weaning Piglets

Wei,

Yang,

Jiang

et al. 2023

Animals

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“…It is a techniques which is utilized to expose food with gamma rays through radioactive source like Cobalt-60. It has been reported that these gamma rays can penetrate into feed and its packaging to kill the harmful parasite, bacteria and virus (Caulfield et al, 2008). This latest technique is known as the cold pasteurization method as it has no any increase in the level of temperature of treated feed stuff (Loaharan, 2003).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Comparative Effect of Irradiated and Controlled Feed on the Body Growth of Broiler Chicken

Ullah¹,

Chand²,

Kabir³

et al. 2022

PJAR

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This study was conducted to evaluate the influence of ionizing irradiation supplement diet with replacement of antibiotics in poultry at the level of 5KGy (1Gy= 1 joule/kg). In our study various parameters were analyzed including feed intake, FCR, dressing percentage, weight gain, mortality percentage, weight of goblet and TFT thyroid function test were performed. In this experiment total 9 hundred broiler chicks were purchased from local market and randomly divided into two groups 1 control and 1 irradiated. These groups were further distributed in two more replications with 50 birds per replication using the random treatment design. The findings our study showed that there was no significant influence of feed intake was recorded with irradiation. The results for feed intake of total chick was observed 2652.33±59.45 and 2625.78±16.31g was observed for control and irradiated group, respectively. The results for weight gain was observed significantly higher (P≥0.05) in 1 st and 2 nd week of study in control group, while the results for weight gain was observed significantly higher in (P≥0.05) irradiated group as compared with control group during the 3 rd and 4 th week of experiment. The results for overall weight gain for each broiler was recorded significantly higher (P≥0.05) in irradiated group as compared with control group 1349.00±12.59 and 1286.68±21.08g, respectively. In this study the results for feed conversion ratio was observed higher in irradiated group as compared with control group 1.95±0.02 and 2.06±0.05g, respectively. Whereas the overall results for feed conversion ratio was recorded significantly lower (P≥0.05) in irradiated group as compared with control group. The results for feed conversion ratio was observed 5.33% reduced in irradiated group as compared with control one. There was no significant difference was observed in 1 st , 2 nd , 3 rd and 4 th week of study. There was no significant difference was recorded for the results of dressing % in control and irradiated group. The findings for mortality % was observed significantly higher in (P≥0.05) in control group as compared with the irradiated group. It has also been seen that there was no any significant difference was recorded in Giblets weight and serum triiodothyronine T3, T4 and TSH of both control and irradiated groups. It has been concluded from the present study that irradiated feed can be used at the place of antibiotics with 5KGy level to decrease the mortality % for achieving maximum body weight, body growth and better FCR with less public health problems.

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The effect of gamma‐irradiation and pasteurisation on the composition of dry cat food formulation

Cited by 2 publications

References 0 publications

Effects of Gamma-Ray Irradiation of Bacteria Colonies in Animal Feeds and on Growth and Gut Health of Weaning Piglets

Effects of Gamma-Ray Irradiation of Bacteria Colonies in Animal Feeds and on Growth and Gut Health of Weaning Piglets

Evaluation of the Comparative Effect of Irradiated and Controlled Feed on the Body Growth of Broiler Chicken

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