scholarly journals Hyperhomocysteinemia Induced by Methionine Excess is Effectively Suppressed by Betaine in Geese

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1642
Author(s):  
Zhi Yang ◽  
Yu Yang ◽  
Jinjin Yang ◽  
Xiaoli Wan ◽  
Haiming Yang ◽  
...  

The objective of our study was to investigate the effects of excess Methionine (Met) on the growth performance, serum homocysteine levels, apoptotic rates, and Bax and Bcl-2 protein levels in geese and to study the role of Bet (betaine) in relieving excess Met-induced hyperhomocysteinemia (HHcy). In this study, 150 healthy male 14-day-old Yangzhou geese of similar body weight were randomly distributed into three groups with five replicates per treatment and 10 geese per replicate: the control group (fed a control diet), the Met toxicity group (fed the control diet +1% Met), and the Bet detoxification group (fed the control diet +1% Met +0.2% Bet). At 28, 49, and 70 d of age, the geese in the Met toxicity group had significantly lower body weights than those in the control group (p < 0.05). The serum homocysteine levels in geese at 70 d of age in the detoxification group were significantly lower than those in the Met toxicity group (p < 0.05). Compared with the control, Met significantly increased cardiomyocyte apoptosis rates, while Bet reduced them. In conclusion, our results suggest that excess methionine reduces body weight induced by myocardial apoptosis, and Bet can be used to effectively lower plasma homocysteine levels.

1994 ◽  
Vol 74 (2) ◽  
pp. 341-346 ◽  
Author(s):  
R. M.G. Hamilton

Two experiments examined the effect on the performance of Leghorn hens given diets containing flame-roasted grains from 140 to 490 d of age. In exp. 1, the inclusion of barley, corn and wheat roasted at 121, 119 and 149 °C, respectively, had no significant (P > 0.05) effect on productive performance. Experiment 2 contained a factorial arrangement of treatments that involved two sources of dietary barley (non-roasted or flame-roasted at 154 °C), two methods of milling (hammer or roller) and two dietary protein levels (15 or 18%). Hens given the diets that contained roasted barley had lower (P < 0.01–0.001) 490-d body weights, egg production, early egg weight (196 d) and number of extra large sized eggs, and higher (P < 0.05–0.01) feed conversion, monetary returns, interior egg quality and number of medium sized and grades B and C eggs than those fed the non-roasted barley control diet. Mortality, the number of large-sized eggs and egg weights, feed conversion and the occurrence of blood spots were higher (P < 0.05–0.001) while the number of medium-sized eggs was lower (P < 0.05–0.001) when the hens were fed roller compared with hammer-milled grains. Hens given the 18% protein-containing diets had higher (P < 0.05–0.01) 490 d body weight, egg production, monetary returns and numbers of small sized and grades B and C eggs, but lower (P < 0.05) mortality than those receiving the diets that contained 15% protein. Key words: Flame roasting, dietary grains, Leghorn hens


2014 ◽  
Vol 84 (1-2) ◽  
pp. 5-11 ◽  
Author(s):  
Eun Y. Jung ◽  
Sung C. Jun ◽  
Un J. Chang ◽  
Hyung J. Suh

Previously, we have found that the addition of L-ascorbic acid to chitosan enhanced the reduction in body weight gain in guinea pigs fed a high-fat diet. We hypothesized that the addition of L-ascorbic acid to chitosan would accelerate the reduction of body weight in humans, similar to the animal model. Overweight subjects administered chitosan with or without L-ascorbic acid for 8 weeks, were assigned to three groups: Control group (N = 26, placebo, vehicle only), Chito group (N = 27, 3 g/day chitosan), and Chito-vita group (N = 27, 3 g/day chitosan plus 2 g/day L-ascorbic acid). The body weights and body mass index (BMI) of the Chito and Chito-vita groups decreased significantly (p < 0.05) compared to the Control group. The BMI of the Chito-vita group decreased significantly compared to the Chito group (Chito: -1.0 kg/m2 vs. Chito-vita: -1.6 kg/m2, p < 0.05). The results showed that the chitosan enhanced reduction of body weight and BMI was accentuated by the addition of L-ascorbic acid. The fat mass, percentage body fat, body circumference, and skinfold thickness in the Chito and Chito-vita groups decreased more than the Control group; however, these parameters were not significantly different between the three groups. Chitosan combined with L-ascorbic acid may be useful for controlling body weight.


2006 ◽  
Vol 76 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Yukari Egashira ◽  
Shin Nagaki ◽  
Hiroo Sanada

We investigated the change of tryptophan-niacin metabolism in rats with puromycin aminonucleoside PAN-induced nephrosis, the mechanisms responsible for their change of urinary excretion of nicotinamide and its metabolites, and the role of the kidney in tryptophan-niacin conversion. PAN-treated rats were intraperitoneally injected once with a 1.0% (w/v) solution of PAN at a dose of 100 mg/kg body weight. The collection of 24-hour urine was conducted 8 days after PAN injection. Daily urinary excretion of nicotinamide and its metabolites, liver and blood NAD, and key enzyme activities of tryptophan-niacin metabolism were determined. In PAN-treated rats, the sum of urinary excretion of nicotinamide and its metabolites was significantly lower compared with controls. The kidneyα-amino-β-carboxymuconate-ε-semialdehyde decarboxylase (ACMSD) activity in the PAN-treated group was significantly decreased by 50%, compared with the control group. Although kidney ACMSD activity was reduced, the conversion of tryptophan to niacin tended to be lower in the PAN-treated rats. A decrease in urinary excretion of niacin and the conversion of tryptophan to niacin in nephrotic rats may contribute to a low level of blood tryptophan. The role of kidney ACMSD activity may be minimal concerning tryptophan-niacin conversion under this experimental condition.


1984 ◽  
Vol 52 (3) ◽  
pp. 545-560 ◽  
Author(s):  
R. Giugliano ◽  
D. J. Millward

1. Male weanling rats were fed on diets either adequate (55 mg/kg), or severely deficient (0.4 mg/kg) in zinc, either ad lib. or in restricted amounts in four experiments. Measurements were made of growth rates and Zn contents of muscle and several individual tissues.2. Zn-deficient rats exhibited the expected symptoms of deficiency including growth retardation, cyclic changes in food intake and body-weight.3. Zn deficiency specifically reduced whole body and muscle growth rates as indicated by the fact that (a) growth rates were lower in ad lib.-fed Zn-deficient rats compared with rats pair-fed on the control diet in two experiments, (b) Zn supplementation increased body-weights of Zn-deficient rats given a restricted amount of diet at a level at which they maintained weight if unsupplemented, (c) Zn supplementation maintained body-weights of Zn-deficient rats fed a restricted amount of diet at a level at which they lost weight if unsupplemented (d) since the ratio, muscle mass:body-weight was lower in the Zn-deficient rats than in the pair-fed control groups, the reduction in muscle mass was greater than the reduction in body-weight.4. Zn concentrations were maintained in muscle, spleen and thymus, reduced in comparison to some but not all control groups in liver, kidney, testis and intestine, and markedly reduced in plasma and bone. In plasma, Zn concentrations varied inversely with the rate of change of body-weight during the cyclic changes in body-weight.5. Calculation of the total Zn in the tissues examined showed a marked increase in muscle Zn with a similar loss from bone, indicating that Zn can be redistributed from bone to allow the growth of other tissues.6. The magnitude of the increase in muscle Zn in the severely Zn-deficient rat, together with the magnitude of the total losses of muscle tissue during the catabolic phases of the cycling, indicate that in the Zn-deficient rat Zn may be highly conserved in catabolic states.


2021 ◽  
Vol 42 (4) ◽  
pp. 2471-2488
Author(s):  
Giovanna Bobato Pontarolo ◽  
◽  
Mikael Neumann ◽  
Fernando Braga Cristo ◽  
Edelmir Silvio Stadler Júnior ◽  
...  

Functional additives, such as autolyzed yeasts, have been used to achieve greater production efficiency and animal health. These compounds are also alternatives to the use of performance-enhancing antimicrobials. The objective was to evaluate the productive performance, ingestive behavior, apparent digestibility of feed DM and the carcass characteristics of beef steers finished in feedlot receiving autolyzed yeasts in the diet. The experimental design was randomized blocks, consisting of three treatments and six repetitions, where each repetition was represented by a stall with two animals. 36 bulls, ½ Angus × ½ Nelore blood, from the same herd, with an average age of 11 months and an average body weight of ± 330 kg were used.The treatments were as follows: CON - yeast-free diet; Y4 - yeast diet (4 g animal day-1) and Y7 - yeast diet (7 g animal day-1). The product used is a functional ingredient containing the yeast Saccharomyces cerevisiae. The inclusion of autolyzed yeasts resulted in greater daily body weight gain and better feed conversion in the initial feedlot phase. The apparent digestibility of DM of diets containing autolyzed yeast was superior to the control diet, and its use did not interfere with the animal ingestive behavior. Supplementation with autolyzed yeasts at the inclusion level of 4 g day-1 promoted better results in the finishing of feedlot steers, and that the supplemented groups (4 g animal day-1 and 7 g animal day-1) achieved the same degree of carcass finishing, higher than the control group.


1985 ◽  
Vol 4 (1) ◽  
pp. 91-110 ◽  
Author(s):  
A. M. Hoberman ◽  
W. M. Weatherholtz ◽  
R. S. Durloo

The effects of a new experimental drug, KF-868, were investigated after administration to pregnant Sprague-Dawley rats at 0(vehicle), 0.1, 2.0, and 40.0 mg/kg per day during Days 7 through 17 of gestation by examination of term fetuses and naturally delivered offspring. Pregnant rats administered 0.1, 2.0, and 40.0 mg/kg per day gained significantly more weight during the dosage period than did the vehicle control group. Treatment-related physical signs, bloody crust on nose and stains on fur, were observed in the high dosage group. Fetal viability was significantly increased, and resorptions were significantly decreased for the mid and high dosage groups, when compared with the control group. Average fetal body weights for cesarean-delivered fetuses were less for the 40.0 mg/kg per day dosage groups than for the vehicle control group. Visceral and skeletal evaluations of fetuses revealed no difference between the control and test groups. Percent survival of pups was significantly less for the high dosage group than for the control group. Average rat body weights prior to mating for the high dosage group were generally less than for the control group. All physical and functional developmental values were comparable among the control and test groups. Evaluation of postweaning parameters of pups revealed no significant difference in sex maturation, behavior (open-field and water maze), and reproductive capacity. Average body weight gains during the 9-week growth period before mating were significantly less for the 40.0 mg/kg per day dosage group F1 generation female rats. Toxicity in fetuses and offspring was observed only at the highest dosage level. Dosage-dependent, significant increases in maternal body weight gain, as compared with control values, occurred for doses in the 3 KF-868-administered groups. These results indicate that 0.1 and 2.0 mg/kg per day dosages of KF-868 were not lethal and did not produce any adverse effects on the morphological or functional development of offspring. Toxicity was evident in offspring and fetuses of dams administered 40.0 mg/kg per day KF-868, 40,000 times as high as the daily therapeutic dose.


1996 ◽  
Vol 270 (4) ◽  
pp. R738-R743 ◽  
Author(s):  
M. D. Hirvonen ◽  
R. E. Keesey

Rats maintaining reduced body weights after lesions of the lateral hypothalamus (LH; LH rats) are characterized by smaller body protein masses. Two experiments were conducted to determine whether this reduced protein mass is actively defended. In the first, it was found that LH rats induced to overeat and restore body weight to the level of nonlesioned controls markedly increased their body fat without significantly increasing body protein. That is, LH rats at normal body weights were notably obese. In the second experiment, body protein losses produced by food restriction in LH rats were both relatively small and proportionally the same as those seen in similarly restricted nonlesioned controls. These observations demonstrate that LH rats retain the capacity for preserving body protein when challenged by either under- or overnutrition. The apparently irreversible reduction in the body protein mass thus appears to be the result of a specific lean tissue downregulation induced by LH damage.


Author(s):  
Vishal Mudgal ◽  
Vipin . ◽  
Anurag Bharadwaj ◽  
A. K. Verma

Background: Vitamins A and E are unable to get synthesized by animal’s body and due to unavailability of sufficient green fodder in the ration, supplementation is required. Buffaloes are the major milk producer dairy animal in India and hence a study was undertaken to evaluate the effect of supplementing vitamin A and E on the colostrum composition of peri-parturient Murrah buffaloes. Methods: Twenty-two multiparous Murrah buffaloes during their advance stage of pregnancy (-30 day) were selected and divided into three groups i. e. control (C, n=8), treatment 1 (T1, n=7) and treatment 2 (T2, n=7) based on the most probable producing ability of milk, parity and body weights. Buffaloes were fed either control diet (C) or supplemented with vitamin A and E @ 75,000 IU and 1,500 IU/day, respectively, in group T1 and @ 1,50,000 IU and 3,000 IU/day, respectively in group T2. Colostrum samples were collected from one day after parturition up to day 5th after calving and analysed for fat, protein, lactose, solid-not-fat and total solids. Result: Supplementation of vitamin A and E at a higher level (T2) was helpful to increase (P less than 0.05) colostrum protein levels for first three days and total solids percentage for first two days as compared to control, while colostrum lactose and solid not fat % were high (P less than 0.05) in T1 groups as compared to control at day third only. The fat percentage had a reducing tendency (P less than 0.05) in control and T1 group and total solids in the T1 group only with the advancement of the post-parturient period. Based on the findings of the study, it may be concluded that vitamins A and E supplementation had a positive influence on the colostrum composition of peri-parturient Murrah buffaloes.


2021 ◽  
Vol 21 (4) ◽  
pp. 139-148
Author(s):  
Olena Honcharova ◽  
Pavlo Kutishchev ◽  
Yevgen Korzhov

This research investigated Spirulina Platensis, Chlorella vulgaris and Artemia salina as additional sources of protein and biologically active substances that affect the parameters of the carp body. Additional addition of carp to the diet in the ratio: Spirulina Platensis - 40%, Chlorella vulgaris - 30% and Artemia salina - 30% made an impact on the parameters of carp development. The components were cultured in a bioreactor built into a recirculating aquaculture system. The results showed that after additional feeding of carp with the indicated components, the body weight of one-year carp was higher than the control group by 8.9%, and safety by 3.4%. Body weight two year carp was greater in the experimental group than in the group where the fish ate the total diet. The difference was 12.1% in body weight and 2.9% in safety. These parameters were significantly lower in fish fed the control diet (P<0.05). This scientific work has demonstrated the additional use of natural food as a method for improving the blood composition of carp: an increase in hemoglobin by 15.5% (P<0.05), erythrocytes by 5.5% in comparison with the control group. Indicators of gas-discharge visualization of a biological object supplemented the obtained result.


2021 ◽  
Author(s):  
Dong Wang ◽  
Yuanyi Du ◽  
Haotian Jia ◽  
Siqi Huang ◽  
Lei Lei ◽  
...  

Abstract Background: Weaning is one of the most stressful periods that cause gastrointestinal tract dysfunction and diarrhea in calves. HNa and Gln were reported to exert beneficial effects on promoting growth performance, decreasing diarrhea incidence, and modulating intestinal microbiota in animals. Therefore, this study investigated the effect of HNa and Gln combined supplementation on growth performance, diarrhea incidence, serum parameters, intestinal microbiome, and metabolites of weaned calves.Results: In Exp. 1, 40 calves at 51±3 days of age with similar body weight (66.82±4.31 kg) were randomly assigned to 4 treatments fed with a basal diet (NC group), and a basal diet supplemented with 100 mL of 1%, 3%, or 5% HNa+1% Gln, twice daily, respectively. In a 21-day trial, calves on the 5% HNa+1% Gln group had higher ADG and lower fecal score and diarrhea incidence than those in the control group (P < 0.05). In Exp. 2, 20 calves at 51±3 days of age with similar body weight (69.37±6.28 kg) were randomly assigned to 2 treatments fed with a basal diet (NC group) and a basal diet supplemented with 100 mL of 5% HNa+1% Gln, twice daily (H+G group, the dose was obtained from Exp. 1). In a 21-day trial, calves supplemented with HNa and Gln had higher final BW and ADG, serum IgG concentration and GSH-Px and T-AOC activities, but lower fecal score, diarrhea incidence, as well as serum DAO, D-lac, TNF-α, and MDA concentrations compared to NC group (P < 0.05). Analysis of intestinal microbiota indicated that supplemented with HNa and Gln significantly increased the abundance of phyla Firmicutes and genus of Bifidobacterium, Lactobacillus, Olsenella, Ruminiclostridium 9, Howardella, and uncultured organism, whereas the abundance of phyla Bacteroidetes, genus of Helicobacter and Lachnoclostridium were decreased as compared with NC group. Moreover, untargeted metabolomics analysis revealed that supplemented with HNa and Gln altered 18 metabolites and enriched 6 KEGG pathways (primary fatty acid biosynthesis) compared to the NC group. Conclusions: This study showed that combined supplemented with HNa and Gln could decrease diarrhea of weaned calves, which may be associated with improved intestinal microbial ecology and altered metabolism profile.


Sign in / Sign up

Export Citation Format

Share Document