scholarly journals Effects of Dietary Tea Polyphenols on Epigallocatechin Gallate, Catechin, Egg Quality and Production of Gallus domestiaus

2021 ◽  
Vol 25 (01) ◽  
pp. 139-145
Author(s):  
Zhenzhen Fan
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Epigallocatechin Gallate ◽  
Basal Diet ◽  
Egg Yolk ◽  
Control Group ◽  
Egg Weight ◽  
Quality Testing ◽  
High Concentrations ◽  
Experimental Group

Effect of dietary tea polyphenol (TP) on the content of epigallocatechin gallate (EGCG), catechin (C) in egg yolk, and impact on egg quality and production was investigated. For this purpose, 315 healthy Gallus domestiaus aged 42 weeks were selected and randomly divided into 7 groups. The experimental group added 0.02, 0.05, 0.09, 0.14, 0.19 and 0.24% TP to the basic diet. The control group (CK) was fed basal diet. After 10, 20 and 30 days, 15 eggs were randomly selected from each group for egg quality testing, and 20 eggs were selected for EGCG and C content test in the yolk. The results showed that in the 0.24% TP group, the content of EGCG in egg yolk was significantly higher than that of CK group and the 0.02, 0.05, 0.09 and 0.14% TP groups (P < 0.05), and reached the highest on the 30th day (19.171μg/g). The content of C in egg yolk was significantly higher than that in CK group and the 0.02, 0.05, 0.09 and 0.14% TP groups (P < 0.05); and reached the highest on 30th day (7.071 μg/g). The egg weight of the 0.14% TP group on the 10th day and of the 0.19% TP group on the 20th day were significantly lower than that of the CK group (P < 0.05); the egg yolk weight of 0.14% TP on the 10th and 20th days were significantly lower than that of the CK group (P < 0.05). On the 30th day, compared with the control group, the egg weight of the 0.14% TP group was significantly reduced (P < 0.05), the egg yolk color of 0.05 and 0.14% TP groups was significantly increased (P < 0.05). During the whole experiment, the egg production of 0.24% TP group was significantly higher than that of control group (P < 0.05). In conclusion, adding high concentrations of TP can increase the content of EGCG and C in the yolk; however, it has a certain impact on egg weight, yolk color and eggshell thickness. Adding high concentrations of TP may increase egg production. © 2021 Friends Science Publishers

scholarly journals Effects of feed supplementation with manganese from its different sources on performance and egg parameters of laying hens

2014 ◽  
Vol 59 (No. 4) ◽  
pp. 147-155 ◽  
Author(s):  
K. Venglovská ◽  
Ľ. Grešáková ◽  
I. Plachá ◽  
M. Ryzner ◽  
K. Čobanová
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Protein Hydrolysate ◽  
Basal Diet ◽  
Egg Yolk ◽  
Control Group ◽  
Feed Supplementation ◽  
Positive Effects ◽  
Dietary Treatments

The objective of this study was to compare the effects of feed supplementation of laying hens with manganese from its inorganic and organic sources on performance and some parameters of egg quality. Ninety-six hens at 20 weeks of age were randomly allocated to 4 dietary treatments, each consisting of 6 replicates (4 birds per replicate). The control group was fed unsupplemented basal diet (BD) with only natural background Mn level of 46.4 mg/kg feed. For the three experimental treatments, the BD was supplemented with 120 mg Mn/kg either from Mn-sulphate or Mn-chelate of protein hydrolysate (Mn-Pro) or Mn-chelate of glycine hydrate (Mn-Gly). After 8 weeks of dietary treatments the egg production, egg weight, feed intake, and feed efficiency were not affected by dietary treatments. Regardless of the sources, Mn supplementation to feed resulted in significantly decreased percentages of cracked eggs compared to the unsupplemented control group. The thickness, weight, proportion, and index of eggshell were significantly elevated in all groups supplemented with Mn. The intake of Mn-Gly resulted in considerably increased Mn deposition in egg yolk compared to the control eggs. In the control and Mn-sulphate groups yolk malondialdehyde (MDA) started to increase after 20 and 30 days of egg storage respectively, whereas in eggs from hens given organic Mn-sources this parameter was not affected up to 40 days. Although there were no significant differences in MDA values between the treatments until 20 days of storage, the Mn-sulphate group showed significantly higher MDA concentration in yolks compared to the control group after 30 days of storage. These results demonstrate that supplementation of hens&rsquo; diet with Mn has positive effects on eggshell quality. Feed supplementation with Mn from organic sources appears to be more effective in preventing yolk lipid oxidation during cold storage of eggs than that from Mn-sulphate. &nbsp;

scholarly journals Performance of laying birds fed diets containing forage meal of Tithonia diversifolia (Hemsl A. Gray) and antibiotics

2021 ◽  
Vol 33 (1) ◽  
pp. 58-68
Author(s):  
S. G. Ademola ◽  
G. O. Farinu
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Control Diet ◽  
Basal Diet ◽  
Egg Yolk ◽  
Tithonia Diversifolia ◽  
Egg Weight ◽  
Wild Sunflower ◽  
Laying Performance ◽  
Diet Control

A study was conducted to evaluate the effects of dietary inclusion of the forage meal of Tithonia  diversifolia with or without antibiotic on the laying performance and egg quality of birds for a period of eleven weeks. T. diversifolia is also known as wild sunflower leaf. Wild sunflower leaf meal (WSFLM) was incorporated in the diets at 75g/kg (basal diet). Streptomycin and penicillin were   added to basal diet at 100 ppm each. Mixture of penicillin and streptomycin, each at 100 ppm added to the fourth diet. Control diet neither contained WSFLM nor antibiotic. The results of weekly performance at first week of the study, showed that there were significant (P<0.01) increases  for egg production, hen day production and feed efficiency  for birds fed diets containing WSFLM,  while egg weight and feed intake were not affected. Haugh Unit (P <0.05) and egg breadth (P <0.01) 8th week, whereas food consumption at second (P <0.05), fourth and fifth weeks (P <0. 01) were all significantly influenced by the dietary treatments. Yellow pigmentation of egg yolks was significantly (P <0.01) enhanced by WSFLM throughout 77 days. The summary of the data at the end of the study indicated that WSFLM significantly (P <0.01) enhanced egg. Weight, egg production,  Egg yolk and hen day production (P < 0.05). Control birds and those fed basal diets with antibiotic significantly (P <0.05) retained protein and ether extract than those fed basal diet. Supplementation of basal diet with either penicillin or streptomycin positively affected the egg production and egg weight at 77th day, whereas the mixture of the two antibiotics adversely affected the performance of the birds. It is therefore advisable that WSFLM at 75 g kg-1 in combination with either penicillin or streptomycin at 100ppm may be included in the diet of laying birds

scholarly journals Effect of Bacillus velezensis to substitute in-feed antibiotics on the production, blood biochemistry and egg quality indices of laying hens

2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Miao Ye ◽  
Chunjie Wei ◽  
Anam Khalid ◽  
Qian Hu ◽  
Ru Yang ◽  
...  
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Future Application ◽  
Control Group ◽  
Poultry Production ◽  
Bacillus Velezensis ◽  
Group I ◽  
Antibiotic Group ◽  
Group Ii ◽  
Experimental Group

Abstract Background The excessive use of antibiotics in the livestock feed industry caused inevitable side effects of microbial resistance. Besides this residual antibiotics in animal-derived foodstuff imposed serious health problems for humans. So this study aimed to investigate the potential use of Bacillus velezensis to substitute antibiotics for poultry production. A total of 468, 49-week-old Hy-Line Brown chickens, were randomly divided into four groups the control group (regular diet), experiment group I (0.1% B. veleznesis), experiment group II (0.2% B. veleznesis), and antibiotic group (50 mg/kg flavomycin), with three replicates per group and trial period consisted on 42 days. Results The results showed that, compared with the control group, the average egg production rate and daily feed intake of experimental groups I and II increased significantly (P < 0.05), while the average egg weight was increased in experimental group II as compared to (I) (P < 0.01). The feed conversion ratio was decreased (P > 0.05) in group (II) Egg quality parameters such as yolk weight of the experimental group II was increased, but that of the antibiotic group and experiment group I was decreased, neither significant (P > 0.05). Moreover, the eggshell strength, yolk color, albumen height, and Haugh unit were significantly increased (P < 0.05). Compared with the control group, probiotic groups can increase the progesterone and motilin (P > 0.05) but decrease the secretin and cholecystokinin in the blood plasma (P > 0.05). Conclusions This study suggested that B. velezensis can substitute in-feed-antibiotics and improved most of the study parameters significantly. Which suggested that B. velezensis has potential future application value to replace the feed antibiotics.

L-carnitine improves egg production in black neck ostriches

2008 ◽  
Vol 48 (10) ◽  
pp. 1341
Author(s):  
A. Hajibabaei ◽  
M. Shivazad ◽  
Sh. Golzar Adabi ◽  
A. Lavaf ◽  
N. Eila
Keyword(s):  
Fatty Acids ◽  
Breeding Season ◽  
Egg Production ◽  
Basal Diet ◽  
Control Group ◽  
Long Chain Fatty Acids ◽  
Egg Weight ◽  
Dietary Effects ◽  
Protein Sparing ◽  
Long Chain

The important functions of L-carnitine are fostering the oxidation of long-chain fatty acids by mitochondria and stimulating protein-sparing action by increasing energy derived from lipids. The present study was conducted to investigate dietary effects of L-carnitine on egg production of breeder ostriches. Ninety black neck ostrich breeder birds (60 females and 30 males) were examined randomly (completely randomised design) within three treatments and five replicates for 7 months in breeding season. A basal diet was formulated and used for the control group (L1), while two levels of L-carnitine, 250 mg/kg and 500 mg/kg, were included in the basal diet for treatments L2 and L3, respectively. The egg production percentage, egg weight and defective eggshell percentage were measured. The supplementary diet with 500 mg/kg L-carnitine increased (P < 0.01) the egg production percentage. Means (±s.e.) of egg production percentage for L1, L2 and L3 were 9.68, 12.95 and 17.13% (±1.08), respectively. L-carnitine had no effect on the egg weight and the defective eggshell percentage. The results suggest that basal diet supplemented with 500 mg/kg L-carnitine can increase the egg production percentage of ostriches.

scholarly journals EDIBLEEGGQUALITYWHENIODINEISINTRODUCEDINTOLAYINGHENBODY

2021 ◽  
pp. 65-70
Author(s):  
L.V. Rastopshina ◽  
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Federal District ◽  
Egg Yolk ◽  
Egg White ◽  
Egg Laying ◽  
The Body ◽  
Control Group ◽  
Trace Element Deficiency

The Altai Region along with the regions of the Siberian Federal District belongs to the zone with trace element deficiency including iodine deficiency. The research goal was to study the effect of iodine on edible egg quality of laying hens of the Rodonit cross. At the final stage of egg-laying, 4 groups of 4 laying hens were formed. No iodine was administered to the hens of the 1st control group. Starch-based iodine product was administered to the birds of the 2nd, 3rd and 4th trial groups into the lower third of the neck, under the wing and into the rump area in a dose of 1.5 mg per head. The egg production intensity in the trial groups was higher by 21.3-28.8%. Egg weight in the 1st control group was 65.6 ± 1.33g which was lower than that in the trial groups by 4.4% (2nd group); 3.7% (3rd group) and 1.5% 4th group). All eggs belonged to “select” grade. The 3rd and 4th trial groups had less egg white by 3.8 and 2.7%; the egg-yolk content increases in the eggs of the 2nd, 3rd and 4th trial groups by 1.2%, 9.4% and 2.4%, respectively, and the eggshell weight by 1.2-9.4% as com-pared to the control. The ratio of egg white and egg-yolk weight in the eggs of the trial groups was lower than in the control group by 9.38-19.29%, but the ratio of egg-yolk to egg white was by 10.4-23.9% higher. The following indices were higher in the trial groups as compared to the control: egg white index -by 1.4-17.1%; egg-yolk -by 3.2-6.4%; Haugh unit -by 7.2-11.1%; eggshell thickness -by 3.9-8.3%. The best results were obtained with the administra-tion of iodine to the hens in the region of the lower third of the neck. The enrichment of the body of laying hens of the Rodonit cross with iodine makes it possible to obtain the profitability of edible egg production at the level of 28.6-41.0%.

The effectiveness of the inclusion of domestic enzymes in the compound feed to increase the egg production of laying hens and the quality of eggs

2021 ◽  
pp. 33-41
Author(s):  
L. R. Mikhailova ◽  
L. V. Zhestyanova ◽  
A. Yu. Lavrentiev ◽  
N. M. Kostomakhin ◽  
V. S. Sherne
Keyword(s):  
Production Technology ◽  
Egg Production ◽  
Laying Hens ◽  
Feed Consumption ◽  
Control Group ◽  
Egg Weight ◽  
Chicken Eggs ◽  
Experimental Group ◽  
Poultry Farming

Compound feed are subject to requirements for their composition, since they use several types of grains that contain anti-nutritive substances that reduce the digestibility and use of nutrients. One of the tasks of domestic poultry farming is to reduce losses by increasing the digestibility and accessibility of feed. Among the most effective ways to solve this problem is to add enzymes to the feed of poultry. The inclusion of enzyme drugs in the composition of compound feed contributes to the inactivation of anti-nutritive substances, which contributes to an increase in the coeffi cient of digestibility of nutrients. The purpose of the work was to establish the feasibility and eff ectiveness of the enrichment of compound feed used in the production technology of chicken eggs with mixtures of enzyme drugs of domestic production of Amylosubtilin G3x, Cellolux-F and Protosubtilin G3x. Three groups of laying hens with 57 heads in each have been formed: a control group and two experimental groups. The duration of the experiment was 420 days. Laying hens of the control group have been received farm compound feed depending on their age. Laying hens of the 1st experimental group have been received compound feed of the control group enriched with the enzymes Amylosubtilin G3x and Cellolux-F depending on the age. In the compound feed of laying hens of the 2nd experimental group enzyme drugs were additionally introduced depending on the age Amilosubtilin G3x and Protosubtilin G3x. Higher egg production rates have been observed in the 1st experimental group – 357,81 eggs, which was 6,48 % higher than in the control group and 1,84 % higher than in the 2nd experimental group. The weight of eggs of laying hens of the 1st experimental group was 1,85 g or 2,97 % more, and the 2nd experimental group was 0,7 g or 1,12 % more than in the control group. The diff erence between the egg weight in laying hens of the 1st and 2nd experimental groups was 1,85 % or 1,15 g. The lowest feed consumption of 1,37 kg for the production of 10 eggs was in the laying hens of the 1st experimental group, which was less than the indicator of the control group by 10,94 and by 4,2 % than in the 2nd experimental group.

scholarly journals Effect of Date Palm Pollen Supplementation on the Egg Production, Ovarian Follicles Development, Hematological Variables and Hormonal Profile of Laying Hens

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 69
Author(s):  
Mohamed Saleh ◽  
Dariusz Kokoszyński ◽  
Mohamed Abd-Allah Mousa ◽  
Ahmed Abdel-Kareem Abuoghaba
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Ovarian Follicle ◽  
Basal Diet ◽  
Ovarian Follicles ◽  
Control Group ◽  
Egg Mass ◽  
Egg Weight ◽  
Hormonal Profile ◽  
Ovarian Follicle Development

This experiment studied the effect of DPP supplementation in the laying hens’ diet on the ovarian follicle development, hematological variables and hormonal profile of laying hens. Eighty-four, 78-week-old, Lohman LSL hybrids layers were equally divided into four groups (4 groups × 7 replicates × 3 hens); hens in the 1st group were fed a basal diet (control), while those in the 2nd, 3rd and 4th groups, were fed on the same diet and supplemented with 1.25, 2.5 and 5.0 g DPP/kg diet. The results showed that the egg weight, egg mass and laying rate of laying hens treated with DPP levels were significantly increased compared to those of the hens in the control group. Egg weight, egg surface area, albumen quality and percentage of the yolk in treated hens significantly increased compared with controls. The increased DPP levels in laying hens‘ diet significantly (p < 0.05) increased WBC, Hb and TAC, while heterophil/lymphocyte (H/L ratio) significantly decreased. Additionally, the concentrations of FSH and LH and the weights of ovary and oviduct in the treated hens significantly (p < 0.05) increased compared with the control. In conclusion, the DPP supplementation in the hen diet significantly improved egg production, EW, H/L ratio, ovarian follicles, FSH and LH hormones concentrations.

scholarly journals Physical Quality of the First Egg of Japanese Quail (Coturnix japonica L.) after Given Liquid Herbal Concoction

Mangifera Edu ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 121-130
Author(s):  
Hasan Basri ◽  
Meilinda Pahriana Sulastri
Keyword(s):  
Drinking Water ◽  
Quality Index ◽  
Egg Quality ◽  
Egg Yolk ◽  
Coturnix Japonica ◽  
Control Group ◽  
Shell Weight ◽  
Egg Weight ◽  
Physical Quality

This study aims to determine the first egg's physical quality in Coturnix japonica L. after being given a liquid. The study is an experimental study with a Completely Randomized Design. In this study, the test animals were 24 Coturnix japonica L. randomly selected from 42 quail with 12 days old and average body weight of ± 37.67 g. They have been selected are divided into four treatment groups, i.e., P0: a control group with untreated drinking water, P1: 3 ml/liter water, P2: 6 ml/liter water, P3: 9 ml/liter water. Each treatment group consisted of 6 replications. Variables analyzed included egg weight, eggshell weight, yolk weight, albumen weight, egg yolk index, and egg quality index. The results showed that the addition of herbal concoction with the treatment of 3 ml, 6 ml, and 9 ml per 1 liter of drinking water on the physical quality of the first egg of Coturnix japonica L. including egg weight, yolk weight, albumen weight, shell weight, egg quality index, and yolk index statistically showed results were not significantly different (P>0.05 ), but the addition of herbal concoction did not have a negative effect on the physical quality of the first eggs of Coturnix japonica L.

scholarly journals Effect of Bacillus velezensis to substitute in-feed antibiotics on the production, blood biochemistry and egg quality indices of laying hens

2020 ◽  
Author(s):  
Miao Ye ◽  
Chunjie Wei ◽  
Anam Khalid ◽  
Qian Hu ◽  
Ru Yang ◽  
...  
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Future Application ◽  
Control Group ◽  
Poultry Production ◽  
Bacillus Velezensis ◽  
Group I ◽  
Antibiotic Group ◽  
Group Ii ◽  
Experimental Group

Abstract Background The excessive use of antibiotics in the livestock feed industry caused inevitable side effects of microbial resistance. Besides this residual antibiotics in animal-derived foodstuff imposed serious health problems for humans. So this study aimed to investigate the potential use of Bacillus velezensis to substitute antibiotics for poultry production. A total of 468, 49-week-old Hy-Line Brown chickens, were randomly divided into four groups; the control group (regular diet), experiment group I (0.1% B. veleznesis), experiment group II (0.2% B. veleznesis), and antibiotic group (50 mg/kg flavomycin), with three replicates per group and trial period consisted on 42 days. Results The results showed that, compared with the control group, the average egg production rate and daily feed intake of experimental groups I and II increased significantly (P < 0.05), while the average egg weight was increased in experimental group II as compared to I. (P < 0.01). The feed conversion ratio was decreased (P > 0.05) in group II. Egg quality parameters such as yolk weight of the experimental group II was increased, but that of the antibiotic group and experiment group I was decreased, neither significant (P > 0.05). Moreover, the eggshell strength, yolk color, albumen height, and Haugh unit were significantly increased (P<0.05). Compared with the control group, probiotic groups can increase the progesterone and motilin (P > 0.05) but decrease the secretin and cholecystokinin in the blood plasma (P > 0.05). Conclusions This study suggested that B. velezensis can substitute in-feed-antibiotics and improved most of the study parameters significantly. Which suggested that B. velezensis has potential future application value to replace the feed antibiotics.

scholarly journals The Effects of Licorice Root Powder (Glycyrrhriza glabra) on Performance, Serum Parameters, Egg Yolk Cholesterol and Antioxidant Capacity of Laying Japanese Quail

2018 ◽  
Vol 6 (9) ◽  
pp. 1290
Author(s):  
Sibel Canoğulları Doğan ◽  
Zeynep Erdoğan ◽  
Ahmet Şekeroğlu ◽  
Mikail Baylan ◽  
Altuğ Küçükgül
Keyword(s):  
Japanese Quail ◽  
Antioxidant Status ◽  
Egg Production ◽  
Density Lipoprotein ◽  
Basal Diet ◽  
Egg Yolk ◽  
Licorice Root ◽  
Control Group ◽  
Serum Parameters ◽  
Yolk Cholesterol

This study was conducted with the objectives to determine the effects of licorice root powder (Glycyrrhriza glabra) on performance, serum parameters, egg yolk cholesterol and antioxidant capacity in laying Japanese quail. Two hundred and forty 10-wk-old Japanese quails were randomly assigned to four dietary groups, each one four times replicated with fifteen quails per dietary groups. Control group fed the basal diet; other groups were fed basal diet supplemented with 0, 0.5, 1.0 and 1.5% licorice root powder. There were no significant differences in terms of final live weight, feed intake, feed conversion ratio, egg weight, serum cholesterol, triglyceride and High-Density Lipoprotein (HDL) concentration between treatment groups. Egg production was higher in control group and 0.5% licorice root powder supplemented groups. 1.0% licorice root powder supplemented group had lower egg production rate. Licorice root powder supplementation decreased Low Density Lipoprotein (LDL) concentration and increased glucose concentration significantly. Licorice root powder supplementation increased total antioxidant status (TAS) and reduced total oxidant status (TOS) and oxidative stress index (OSI). It was concluded from this study that supplementation of licorice root powder at the level of 0.5, 1.0 and 1.5% to the feed of laying quails had no adverse effects on performance. Licorice root powder supplementation can be used to reduce cholesterol level and increase antioxidant status in quails.

Sign in / Sign up

Export Citation Format

Share Document