Effect of triticale, lucerne pellets, furazolidone, ethoxyquin and oxycarotenoids on egg yolk colour and performance of crossbred layers

1978 ◽  
Vol 18 (92) ◽  
pp. 396 ◽  
Author(s):  
H Karunajeewa

In the first of two factorial experiments, 26-week-old crossbred pullets were fed for a period of 24 weeks diets with lucerne either in the form of meal or crumbled pellets, with or without 25 p.p.m. furazolidone and with 1 p.p.m. of either G-apo-8'-carotenoic acid ethyl ester or canthaxanthin. In the second experiment, crossbred hens aged 58 weeks were fed for a period of 16 weeks either triticale or wheat, or triticale plus wheat or wheat plus oats on a free choice basis with a concentrate mixture containing either 0 or 333 p.p.m. of ethoxyquin. Lucerne pellets reduced rate of egg production, hen-housed production, efficiency of feed conversion and the income per bird. It increased feed intake by 3.2 per cent and egg yolk colour by 2 per cent. Furazolidone increased hen-housed production and efficiency of feed conversion but had no effect on egg yolk colour. Pullets given diets with canthaxanthin laid eggs with higher yolk colour scores and specific gravity and converted feed more efficiently than those given the diets with G-apo-8'-carotenoic acid ethyl ester. The depressive effect of lucerne pellets on egg production and feed conversion was overcome by both furazolidone and canthaxanthin. Triticale reduced the concentration of oxycarotenoids in egg yolks, Hens given triticale tended to eat more, convert feed less efficiently and gained less liveweight than those given wheat, but rate of egg production and egg weight were unaffected. The performance of hens given triticale plus wheat fell between that of those given either triticale or wheat as the sole cereal. Hens given wheat plus oats tended to lay fewer but heavier eggs with lower yolk colour and gained less liveweight than those given wheat. Ethoxyquin increased the concentration of oxycarotenoids in egg yolks but had no effect on other production traits.

1977 ◽  
Vol 17 (89) ◽  
pp. 926 ◽  
Author(s):  
H Karunajeewa ◽  
I Bagot

The effects of litter condition, antibiotics, barley and lucerne meal on the pigmentation of egg yolks and performance of crossbred layers were examined in two factorial experiments. In both experiments pigmentation of egg yolks was depressed by barley and improved either by 6 per cent lucerne meal in the diet or by housing the birds on wet litter. There were significant interactions between litter condition, antibiotics, lucerne meal and cereals on yolk colour, egg production and efficiency of feed conversion. In experiment 1, young pullets laid fewer eggs when fed diets with 57.2 per cent barley plus 6 per cent lucerne meal. This depression in egg production was alleviated by antibiotics. Feed intake was increased and feed conversion efficiency and body weight gains were decreased by barley, whereas lucerne meal decreased both feed intake and body weight gains. Pullets on wet litter laid larger eggs with lower Haugh unit scores. In experiment 2, older hens laid more eggs on diets with 6 per cent lucerne meal, particularly in the absence of barley and when housed on dry litter. Body weights of these hens were decreased by barley.


2019 ◽  
Vol 37 (1) ◽  
pp. 61
Author(s):  
I Nyoman Jaya ◽  
Ni Ketut Dewi Haryani ◽  
Budi Indarsih

The purpose of this research is to know the influence of the giving of fresh garlic against a decrease in cholesterol levels duck eggs with different analysis time. To achieve that goal, then conducted a study using 50 tail as control with local feeding without given garlic and 50 tail given 25 g/head/day of fresh garlic. The data were analyzed using T-Test, the parameters are observed in this research are cholesterol levels, triglyceride egg yolk, the consumption of feed, feed conversion, egg production, egg weight, and mortality. Analysis of cholesterol levels and triglycerides egg yolks are done at the study week I, III, and V with the method extract ether and the procedure CHOD-PAP. The results showed that there is a decrease in cholesterol 152.24 mg per dl (72.19%) and triglycerides of 130.56 mg per dl (23.42%) a very sharp from the first week to the third week. The feed consumption, egg weight, egg production, and feed conversion are not affected by the time of analysis. The results of this study indicate that to get the content of cholesterol and low fat, given fresh garlic for three weeks.  Duck Eggs; Garlic; Cholesterol


1977 ◽  
Vol 57 (3) ◽  
pp. 421-425 ◽  
Author(s):  
A. R. ROBBLEE ◽  
D. R. CLANDININ ◽  
R. T. HARDIN ◽  
G. R. MILNE ◽  
K. DARLINGTON

In two experiments, White Leghorn pullets kept in batteries were fed rations containing 0, 5, 10, 15, 20 or 30% raw faba beans (Vicia faba L.) for 336 days. The rations were designed to be isocaloric, isonitrogenous and to have equal levels of methionine plus cystine. The results obtained indicated that levels up to and including 20% faba beans in ration ssupplemented with methionine had no adverse effect on mortality, rate of egg production, efficiency of feed conversion or body weight. A level of 30% faba beans resulted in increased mortality, and decreased egg production and feed conversion in one experiment but had no effect in the other. Egg size tended to decrease as the level of faba beans in the ration increased, resulting in a considerable decrease in the percentage of "large size" eggs graded according to Canadian standards. There was an increase in interior quality of the eggs as measured by Haugh units as the level of faba beans used increased. Specific gravity of the eggs was not affected by use of faba beans in the rations.


2017 ◽  
Vol 40 ◽  
pp. 37677
Author(s):  
Daniel Araujo Netto ◽  
Héder José D'Ávila Lima ◽  
Julia Rodrigues Alves ◽  
Bianca Corrêa de Morais ◽  
Mauricio Silva Rosa ◽  
...  

 The environment is very important for the performance of laying hens; thus, techniques are required to improve production systems, providing better welfare for poultry and consequent increase in the quality of the final product, the egg. This study aimed to evaluate the effects of rearing system, on the floor and in cage, on the performance and egg internal and external quality of laying hens. A total of 320 Hysex Brown laying hens, with 34-43 weeks days of age, was distributed in a completely randomized design, with two treatments, floor and cage, with 10 replicates each. The parameters evaluated were: individual feed intake, egg production per replicate, feed conversion per dozen eggs, egg weight; weight and percentage participation of shell, albumen and yolk, specific gravity, body weight variation and viability of birds. The results show that the birds raised on the floor showed best results as to egg production, besides the best internal and external quality, with greater weight of egg, yolk, albumen, shell and with lower losses of eggs. Because of the negative effects of the cage system, in general, hens presented lower results when compared to results of those raised on the floor. 


1977 ◽  
Vol 17 (89) ◽  
pp. 944
Author(s):  
H Karunajeewa

White Leghorn x Australorp pullets were reared on diets with either low (0.91-1.12 per cent) or high (1.45-1.93 per cent) levels of calcium; in the laying phase pullets from each rearing regime were fed diets with either sterilized bone meal or Christmas Island phosphate as sources of supplemental phosphorus. Each of these layer diets was supplemented with 0, 300 or 500 p.p.m. of EDTA. The level of calcium in the rearing diets had no significant effect on liveweight, feed intake or mortality of the pullets during either the rearing or laying phases. High calcium starter and grower diets, however, reduced rate of lay by 2.1 per cent (P < 0.05) and efficiency of feed conversion by 3.7 per cent (P < 0.01). There was also a non-significant tendency to lower shell thickness. The inclusion of 2.5 per cent Christmas Island phosphate in the laying diet, resulting in a daily intake of 46 mg of fluorine per hen, decreased rate of lay by 2.2 per cent (P < 0.05), hen-housed egg production by 11 eggs (P < 0.05) and efficiency of feed conversion by 5.0 per cent (P < 0.01). The addition of 300 p.p.m. EDTA to the laying diet significantly (P < 0.01) improved efficiency of feed conversion by 4.7 per cent. Neither the source of phosphorus nor the dietary level of EDTA had any significant effects on liveweight, egg weight, feed intake, shell quality or mortality.


1969 ◽  
Vol 46 (2) ◽  
pp. 91-96
Author(s):  
F. T. Landagora

The yolk-coloring effect of "achiote" seed was investigated. Hens fed a ration supplemented with whole achiote seed laid eggs with deep-colored yolks. The red-orange color that was observed in the egg yolks of the achiote group persisted in both fresh and boiled eggs. Ground achiote seed fed to laying hens did not impart color to the egg yolks when added to the basal ration or when mixed with the drinking water given. The addition of whole achiote seed to the ration fed to laying hens not only colored the egg yolks more deeply, but also increased egg production. Since Puerto Rican consumers prefer eggs with deeper colored yolks this rinding has potential commercial significance.


Author(s):  
Osman Olgun ◽  
Alp Önder Yıldız

The aim of this study was to investigate the effects of different levels of alfalfa meal on performance, egg quality, egg yolk cholesterol and hatchability parameters of quail breeders. In this trial a total of 90 Japanese quail breeders (30 males, 60 females), 10 weeks old was distributed 5 experimental groups randomly. Each experimental group consisted of 6 replicates of 3 quails (1 males, 2 females) in each. During the 12 weeks experiment period, birds were fed with 5 dietary groups based on corn and soybean meal and containing 0 (control), 10, 20, 40 and 80 g/kg alfalfa meal. Feed and water were offered ad-libitum throughout the experiment. The different dietary levels of alfalfa meal had no significant effect on body weight change, egg production, egg weight, egg mass, feed conversion ratio, egg shell breaking strength, egg yolk triglyceride, fertility, hatchability of fertile eggs or hatchability of eggs set. The feed intake was decreased with 10 or 20 g/kg alfalfa meal levels in the diet. The eggshell weight was best in quails fed 20 g/kg alfalfa meal, and the egg yolk cholesterol was the lowest in quails fed 40 g/kg alfalfa meal. According to the results of this study the addition of 40 g/kg alfalfa meal in laying quail diets decreased the egg yolk cholesterol levels without adverse effect on performance.


2018 ◽  
Vol 16 (4) ◽  
pp. 334-343 ◽  
Author(s):  
H. Lukanov ◽  
A. Genchev ◽  
P. Kolev

The aim of the study was to evaluate egg production in three heavy Japanese quail populations created and reared in the Poultry Breeding Unit of the Trakia University – Bulgaria, marked as WG, GG and GL. In the experiments, 160 female birds from populations WG and GG, and 96 female birds from population GL were tested up to the 6th production month. The main egg production traits were controlled. The highest egg production for the period was demonstrated in group GL (79.84±4.46%), followed by group GG (76.33±3.40%) and group WG (72.11±4.16%). Quails from the WG group were outlined with least efficient feed conversion per egg (74.49±1.21 g feed), while those from the GL group: with the most efficient one – 64.93±1.41 g (p<0.01). The highest average egg weight in descending order was observed in the WG group (14.04±0.32 g), GG group (13.65±0.27 g) and GL group (12.79±0.29 g). The Japanese quail populations created and maintained at the Trakia University showed a potentially good egg production for the production type they belonged to, which makes them attractive for use in interline hybridisation schedules, including for production of autosexing stock layers.


2006 ◽  
Vol 69 (12) ◽  
pp. 2883-2888 ◽  
Author(s):  
TOSHIYUKI MURASE ◽  
KAORI CHIBA ◽  
TOMOKO SATO ◽  
KOICHI OTSUKI ◽  
PETER S. HOLT

Indirect enzyme-linked immunosorbent assays (ELISAs) have been applied to detect immunoglobulin Y antibodies to different serotypes of Salmonella in the yolks of chicken eggs with heat-extracted antigens of Salmonella enterica serotypes Agona (SA), Cerro (SC), Enteritidis (SE), Montevideo (SM), and Putten (SP). The egg yolk samples examined were classified as positive if their ELISA absorbance values exceeded the value for eggs from specific-pathogen-free flocks by more than two standard deviations. Of 30 egg yolk samples from three flocks vaccinated with a killed SE vaccine, 29 were antibody positive by the ELISA assay for the SE antigen. Four to 29 of the 29 yolk samples showed positive results for the other serovars, although the absorbance values for SE were higher than those obtained for the other serotypes in each of the yolk samples. All 30 yolks from three flocks that were not administered any SE vaccines were found to be antibody negative for SE, and two samples were determined to be positive for SC. Thirty-nine or 40 eggs were obtained from each of four layer flocks in a commercial egg production farm where the laying houses were naturally contaminated with SA, SC, SM, SP, Salmonella serovar Infantis (SI), and untypeable strains. The ELISA absorbance values for SM in the egg yolks obtained from the two flocks molted through feed withdrawal when the birds restarted laying were significantly (P &lt; 0.05) higher than those observed in the yolks obtained before the molt. In egg yolks from the two other flocks that were molted through a wheat bran diet, there was no significant difference between the absorbance values before and after the molt. The observations in the present study provide further evidence to suggest that a molt initiated through the administration of a wheat bran diet can reduce the risk for Salmonella problems in a commercial egg-producing setting.


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