scholarly journals Active Yeast but Not Henhouse Environment Affects Dropping Moisture Levels in Egg-Laying Hens

Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2179
Author(s):  
Xue Cheng ◽  
Yuchen Liu ◽  
Zhong Wang ◽  
Lujiang Qu ◽  
Zhonghua Ning
Keyword(s):  
Environmental Factors ◽  
Egg Quality ◽  
Animal Health ◽  
Egg Laying ◽  
Production Costs ◽  
Production Performance ◽  
Absolute Pressure ◽  
Poultry Production ◽  
Production Environment ◽  
Laying Performance

Dropping moisture (DM) refers to the water content in feces. High DM negatively affects poultry production, environment, production costs, and animal health. Heredity, nutrition, environment, and disease may affect DM level. DM has medium inheritability and is related to cage height in henhouses. We examined the relationship among DM level, production performance, and environmental factors at different locations at the same henhouse height and effects of three types of additives. We measured the correlation between environmental factors including temperature, humidity, CO2 concentration, absolute pressure, and DM levels and laying performance of 934 Rhode Island Red hens. DM level was not significantly associated with environmental factors or production performance. We divided 64 persistently high DM hens into control and treatment groups supplied with different additives (probiotics, anisodamine, and antibiotics). DM levels, laying performance, egg quality, and serum biochemical indices were determined. Compared with the control and antibiotics, probiotics significantly reduced DM levels and eggshell strength while improving yolk color but did not significantly affect production performance. The additives reduced the b value of eggshell color; compared with probiotics, anisodamine decreased serum globulin levels. Exogenous active yeast supplementation can significantly reduce DM levels.

scholarly journals Use of Medicinal Mushrooms in Layer Ration

Animals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1014
Author(s):  
Shad Mahfuz ◽  
Xiangshu Piao
Keyword(s):  
Health Status ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Production Performance ◽  
Poultry Feed ◽  
Poultry Production ◽  
Medicinal Mushrooms ◽  
Laying Performance ◽  
Medicinal Fungi

Application of different medicinal mushrooms intended to enhance production performance and health status has created an importance demand in poultry production. One goal of using medicinal mushrooms is to get rid of antibiotics in poultry feed without affecting the optimum performance. Increasing concerns about this issue have led to more attention on antibiotic substitutes and a significant demand for them for organic egg production. Thus, supplementation with medicinal mushrooms is a new concept for research in layer production, however, there is still a great deal of confusion about inclusion levels and the mode of action of medicinal mushrooms on production performance and health status in laying hens. Taking this into account, this review outlines the experimental uses of medicinal fungi on the growth performance, laying performance, egg quality, and health status of layer birds based on previous findings to date. Finally, we highlight that supplementation with medicinal fungi can play a role on the immunity, health, and production performance in laying hens.

scholarly journals Performance of Laying Hens Fed Sorghum Based Diets Supplemented with Enzymes

2021 ◽  
Vol 43 (1) ◽  
pp. 224-232
Author(s):  
O. M. Agunbiade ◽  
P. A. Onimisi ◽  
J. J. Omage
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Quality Characteristics ◽  
Egg Laying ◽  
The Other ◽  
Control Treatment ◽  
Feed Cost ◽  
Laying Performance ◽  
Dietary Treatments

Sorghum is the primary alternative feedstuff for corn in some developed countries in the production of poultry. Thus, four hundred and fifty 32 weeks old Lohmann Brown laying hens were used in a study to evaluate the effect of replacing maize with sorghum with or without enzymes supplementation, on egg laying performance and egg quality characteristics of laying hens. Birds were distributed randomly into six dietary treatments with three replicates per treatment, each replicate had 25 birds with uniform initial group weights. The treatments included maize without enzymes (T1); sorghum without enzymes (T2); as controls respectively, while T3, T4, T5, and T6 contained sorghum based diets with phytase, protease, G2G, and a combination of protease and G2G respectively. Laying performance, cost of production, and egg quality characteristics were determined for the period of the trial, 33-56 weeks of age of the birds. All data obtained were subjected to analysis of variance, using the completely randomized design (CRD) and significant differences among treatment means were compared using the Tukey test. Significant (p<0.05) differences were observed among dietary treatments but with no defined trend observed for egg production traits. Daily feed intake was significantly (p<0.05) higher in maize control diet compared to the other treatments. Diets supplemented with phytase (T3), protease (14), and combination of protease and roxazyme G2G (T6) had significantly (p<0.05) better feed conversion ratio with T3 having the lowest value of 4.01 compared to the other treatments. For feed cost/dozen egg (N), Kg feed/dozen eggs, income above feed cost at N30 per egg, and income above control treatment; phytase (T3), protease (T4), roxazyme 626 (T5), and protease + roxacyme G2G (T6) diets in this study showed better performance than the control. Sorghum diet without enzyme had significantly (p<0.05) least performance for egg number. Hen housed egg production (HHP) and hen day egg production (HDP) compared to the other treatments while sorghum diet with phytase had the highest value (60.12g/day) for average egg weight compared to the other treatments. Egg quality characteristics showed the best performance for dietary treatments supplemented with phytase (T3) in all the other parameters considered, apart from the albumen height, yolk diameter, and yolk index. It was concluded therefore, that sorghum with phytase and protease supplementations can be used in layers' diets as a substitute for maize for optimum egg production.

scholarly journals Effect of anti-prolactin drug and peppermint on broodiness, laying performance and egg quality in indigenous hens

2017 ◽  
Vol 2 (4) ◽  
pp. 547-554 ◽  
Author(s):  
Mst Nasrin Banu ◽  
Md Bazlar Rashid ◽  
Md Mahmudul Hasan ◽  
Fahima Binte Aziz ◽  
Md Rakibul Islam ◽  
...  
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Control Diet ◽  
Egg Laying ◽  
Mentha Piperita ◽  
Sequence Length ◽  
Control Group ◽  
Laying Performance ◽  
Group B

The study was conducted to determine the effect of antiprolactin drug (Bromergon®) and Peppermint (Mentha piperita L.) on broodiness, laying performance and egg quality in indigenous hens. The effect of modulation of prolactin concentration on egg production, sequence length and inter sequence pauses were studied by analyzing the oviposition records. Total sixty indigenous laying hens (30-40 weeks of age), were assigned for treatment with peppermint solution and Bromergon®. Sixty laying hens were randomly divided into 4 groups (A, B, C and D) and each group remained 15 hens. Group A was kept for control, Group B was treated with bromocriptine (Bromergon® SANDOZ) orally @ 640 ?g per bird per day, Group C with 50% peppermint solution @ 10 g per bird orally and Group D was with peppermint and Bromergon® combined at previous dose. Over the course of trial, incremental dietary peppermint (Group C) significantly (p?0.05) increased egg production, body weight of treated indigenous hens than other groups. Egg shell percentage, thickness and haugh unit of hens fed diets supplemented with peppermint were greater than that of hens fed the control diet. However, peppermint supplementation did not influence other egg quality characteristics like albumen and yolk percentages and albumen height. The treated birds had comparatively longer sequences and fewer pauses. It is concluded that the physiological pauses occur during ovulatory sequences can be disrupted effectively using Bromergon® and peppermint. Prolactin levels modulated which may interfere with follicular recruitment and subsequent oviposition thereby improves egg laying potential of the indigenous hens.Asian J. Med. Biol. Res. December 2016, 2(4): 547-554

scholarly journals Lipid sources in diets for egg-laying japanese quail: performance and egg quality

2016 ◽  
Vol 38 (3) ◽  
pp. 281 ◽  
Author(s):  
Letícia Abaker Bertipaglia ◽  
Márcia Izumi Sakamoto ◽  
Liandra Maria Abaker Bertipaglia ◽  
Gabriel Maurício Peruca de Melo
Keyword(s):  
Japanese Quail ◽  
Alternative Energy ◽  
Egg Quality ◽  
Grape Seed ◽  
Egg Laying ◽  
Production Performance ◽  
Animal Origin ◽  
Total Period ◽  
Randomized Design ◽  
Grape Seed Oil

This study evaluated the effect of using lipid sources of plant and animal origin in diets for Japanese quail (Coturnix coturnix japonica) on production performance and internal egg quality. Japanese quails (n = 160) were distributed in a completely randomized design with four treatments and eight replications of five birds each. Lipid sources evaluated were: soybean oil, from poultry slaughterhouse, fish waste and grape seed. The characteristics of performance and internal egg quality were measured every 21 days for a total period of 84 days. Data were subjected to analysis of variance and the means were compared by Tukey’s test. There was no effect of treatments on the production performance of birds, except for feed intake, which was higher for birds fed grape seed oil in the diet. Lipid sources evaluated had no influence on the internal egg quality. It can be concluded that the lipid sources evaluated here in can be used as alternative energy in feed for laying quails, without affecting the performance and internal egg quality. 

scholarly journals Performance of laying hens fed on practical diets containing different levels of supplemental biotin during the rearing and laying stages

1980 ◽  
Vol 44 (2) ◽  
pp. 151-159 ◽  
Author(s):  
C. C. Whitehead
Keyword(s):  
Egg Size ◽  
Laying Hens ◽  
Egg Quality ◽  
Egg Yolk ◽  
Egg Laying ◽  
Apparent Effect ◽  
Laying Performance ◽  
Egg Number ◽  
Biotin Supplementation ◽  
Different Levels

1. The effect of biotin supplementation of low-biotin practical diets during rearing and laying stages on performance was studied in White Leghorn-type laying hens.2. Biotin supplementation during rearing did not have any apparent effect on the condition of the bird at point-of-lay or on subsequent laying performance.3. Biotin supplementation during lay did not have any beneficial effect upon egg number, egg size or food intake or food conversion efficiency.4. Internal egg quality, as reflected by albumen height, was slightly improved by biotin supplementation of layer's diet.5. Input-output relationships were calculated for the incorporation of biotin in egg yolk.6. Metabolic measurements suggested that biotin concentration in egg yolk was the best criterion of biotin status in the hen.7. It is concluded that practical diets contain sufficient biotin to support optimum egg-laying performance in hens.

scholarly journals 181 Enhancing the efficiency of poultry production by optimising selection objectives and breeding strategies

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 182-183
Author(s):  
Ben J Wood ◽  
Hakimeh Emamgholi-Begli ◽  
Emhimad Abdella ◽  
Ryley J Vanderhout ◽  
Christine F Baes
Keyword(s):  
Feed Intake ◽  
Feed Efficiency ◽  
Value Added ◽  
Growth Patterns ◽  
Egg Laying ◽  
Production Costs ◽  
Poultry Production ◽  
Genomic Information ◽  
Breast Meat ◽  
Breeding Programs

Abstract Poultry, in general, have been the most successful farmed species in efficiently producing protein, be it egg laying chickens or meat producing chickens or turkeys. This has been the result of 60–80 years of continuous selection and improvement of traits that effect overall efficiency. The innate physiology of birds, high reproductive rates and relatively short generation intervals have helped speed these improvements. The contribution of feed to production costs has increased efforts to accurately measure feed intake, and selecting for efficient feed utilisation have been significant. Selection for feed efficiency forms an integral part of the breeding objective of the respective breeding programs, but in recent years other components of efficiency have become increasingly important within breeding objectives. Market segmentation, with greater volumes of fully deboned meat for further value added processing, has resulted in the optimisation of yield to feed for both broilers and turkeys. Allometric growth patterns, particularly late stage deposition of breast meat, gives rise to opportunities for optimisation of both slaughter age and weight. Genetic evaluations incorporating genomic information from birds with yield measurements is now implemented across both broilers and turkeys in many breeding programs. The implementation of genomic selection has benefits for not only yield, but also growth and feed efficiency, and we have shown improvements in genetic prediction of 11%, 23% and 31% for growth, breast meat and residual feed intake in turkeys, respectively. Reproductive efficiency has also been improved in broilers, turkeys and particularly layers, by improving evaluations using genomic information. Altering egg production curves to maintain production persistency for increasingly longer time periods has also been important. Layer flocks are now routinely in production for up to 500 days and similar objectives are used for selection in both broiler and turkey reproduction.

scholarly journals Laying Hens Biochar Diet Supplementation—Effect on Performance, Excreta N Content, NH3 and VOCs Emissions, Egg Traits and Egg Consumers Acceptance

Agriculture ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 237 ◽  
Author(s):  
Kajetan Kalus ◽  
Damian Konkol ◽  
Mariusz Korczyński ◽  
Jacek A. Koziel ◽  
Sebastian Opaliński
Keyword(s):  
Feed Intake ◽  
Laying Hens ◽  
Egg Quality ◽  
Dry Matter Content ◽  
Poultry Production ◽  
N Content ◽  
Total N ◽  
Voc Emissions ◽  
Sustainable Solutions ◽  
Laying Performance

Sustainable solutions for intensive poultry production can help farmers, rural communities, consumers, and regulatory agencies. This study assessed supplementation of laying hens diet with beechwood biochar (BC, 1~2%) and BC–aluminosilicates–glycerin mixture (BCM, 1.5~3%) to lower the environmental impact while maintaining egg quality. The effect on feed intake, laying performance, egg quality, the sensory quality of hardboiled eggs, ammonia (NH3) and volatile organic compound (VOC) emissions from excreta, and the excreta composition, were evaluated. A total of 90 hens were distributed into 30 cages and divided into five groups (n=6 replications). BC addition increased daily feed intake, while 1.5% BCM addition reduced it. The influence on egg parameters was positive, with a 6% increase in laying performance, up to 10% and 6% increase in shell resistance to crushing and shell thickness, respectively. The sensory analysis demonstrated no significant differences between all treatments. Excreta total N content was numerically lower due to the treatments (by 4~20%); its pH increased (not significantly), while no effect on ammoniacal N and dry matter content was observed. Most of the investigated treatments had a numerically positive (not statistically significant) effect on NH3 reduction. The reduction of VOC emissions was ambiguous and not statistically significant.

Sign in / Sign up

Export Citation Format

Share Document