Effect of dietary supplementation of microbial protease on performance, egg quality and nitrogen retention in white leghorn layers

2020 ◽  
Author(s):  
S. V. Rama Rao ◽  
T. Srilatha ◽  
M. V. L. N. Raju ◽  
D. Nagalakshmi ◽  
S. S. Paul ◽  
...  
Keyword(s):  
Egg Quality ◽  
Nitrogen Retention ◽  
Dietary Supplementation ◽  
White Leghorn ◽  
Microbial Protease

Effect of Supplementation of Multi Enzymes on Production Performance and Egg Quality Traits in White Leghorn Layers

2016 ◽  
Vol 12 (2) ◽  
Author(s):  
C. Pandian ◽  
A. Sundaresan ◽  
A. V. Omprakash
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Live Weight ◽  
Economic Benefits ◽  
Production Performance ◽  
Feed Consumption ◽  
Quality Traits ◽  
White Leghorn ◽  
Significant Difference ◽  
Enzyme Supplementation

The present study was conducted to assess the effect of supplementation of Multi-enzymes with lysophospholipids on production performance of pure line White Leghorn layers. Body weights before and after the experiment did not differ significantly across the experimental diets. Irrespective of the dietary treatments, the birds gained 3.83 per cent of live weight relative to its initial body weight. Mean per cent Hen housed egg production was significantly (Pis less than 0.05) higher in diet supplemented with 0.10 MEC-L than other groups. Mean egg weight and average daily feed consumption during 25 to 35 weeks of age indicated no significant effect of enzyme supplementation. Average daily feed consumption per bird in control, 0.05 % and 0.1% multi-enzyme supplemented groups was 108.13, 105.66 and 107.67 g respectively and birds offered control diet recorded numerically more feed intake than enzyme supplemented groups. Comparatively low feed per egg was observed in 0.10 per cent group followed by 0.05 per cent group which offers economic benefits than control diets. However, the egg quality traits between different dietary enzyme supplementation groups showed no significant difference.

scholarly journals Mitigation Effects of Bentonite and Yeast Cell Wall Binders on AFB1, DON, and OTA Induced Changes in Laying Hen Performance, Egg Quality, and Health

Toxins ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 156
Author(s):  
Ling Zhao ◽  
Yue Feng ◽  
Jing-Tao Wei ◽  
Meng-Xiang Zhu ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Dietary Supplementation ◽  
Basal Diet ◽  
Liver Weight ◽  
Laying Hen ◽  
Egg Laying ◽  
Villus Height ◽  
Crypt Depth ◽  
Induced Changes

The objective of this study was to evaluate the efficacy of mycotoxin binders in reducing the adverse effects of co-occurring dietary aflatoxin B1 (AFB1), deoxynivalenol (DON) and ochratoxin A (OTA) on laying hens. Three hundred and sixty 26-week-old Roman laying hens were randomly allocated into four experimental groups with 10 replicates of nine birds each. The four groups received either a basal diet (BD; Control), a BD supplemented with 0.15 mg/kg AFB1 + 1.5 mg/kg DON + 0.12 mg/kg OTA (Toxins), a BD + Toxins with Toxo-HP binder (Toxins + HP), or a BD + Toxins with TOXO XL binder (Toxins + XL) for 12 weeks. Compared to the control, dietary supplementation of mycotoxins decreased (P < 0.10) total feed intake, total egg weight, and egg-laying rate, but increased feed/egg ratio by 2.5–6.1% and mortality during various experimental periods. These alterations induced by mycotoxins were alleviated by supplementation with both TOXO HP and XL binders (P < 0.10). Furthermore, dietary mycotoxins reduced (P < 0.05) eggshell strength by 12.3% and caused an accumulation of 249 μg/kg of DON in eggs at week 12, while dietary supplementation with TOXO HP or XL mitigated DON-induced changes on eggshell strength and prevented accumulation of DON in eggs (P < 0.05). Moreover, dietary mycotoxins increased relative liver weight, but decreased spleen and proventriculus relative weights by 11.6–22.4% (P < 0.05). Mycotoxin exposure also increased alanine aminotransferase activity and reduced immunoglobulin (Ig) A, IgM, and IgG concentrations in serum by 9.2–26.1% (P < 0.05). Additionally, mycotoxin exposure induced histopathological damage and reduced villus height, villus height/crypt depth, and crypt depth in duodenum, jejunum and (or) ileum (P < 0.05). Notably, most of these histological changes were mitigated by supplementation with both TOXO HP and XL (P < 0.05). In conclusion, the present study demonstrated that the mycotoxin binders TOXO HP and XL can help to mitigate the combined effects of AFB1, DON, and OTA on laying hen performance, egg quality, and health.

scholarly journals Effect of Newcastle Disease Live-Virus Vaccination of Immature White Leghorn Pullets on Subsequent Egg Quality

1952 ◽  
Vol 31 (4) ◽  
pp. 695-699 ◽  
Author(s):  
Joseph P. Quinn ◽  
Clarence H. Thompson
Keyword(s):  
Newcastle Disease ◽  
Egg Quality ◽  
White Leghorn ◽  
Live Virus ◽  
Virus Vaccination

Effects of the dietary supplementation of chromium and vitamin C on egg quality traits in heat-stressed Japanese quails (Coturnix cot. japonica)

2015 ◽  
Author(s):  
Najmeh Karimi* ◽  
Y. Jafari Ahangari ◽  
S. Zerehdaran ◽  
A. Akhlaghi ◽  
S.R. Hashemi ◽  
...  
Keyword(s):  
Vitamin C ◽  
Egg Quality ◽  
Dietary Supplementation ◽  
Quality Traits ◽  
Japanese Quails

Effect of Dietary Supplementation of an Antioxidant Blend on Performance, Egg Quality and Behavior in Bovans Brown Hen

2016 ◽  
Vol 15 (5) ◽  
pp. 192-200
Author(s):  
Jiaying Hu ◽  
Rachel L Dennis ◽  
Junmei Zhao ◽  
Heng-Wei Cheng
Keyword(s):  
Egg Quality ◽  
Dietary Supplementation ◽  
And Behavior

scholarly journals Egg Quality. 2. Albumen Quality of Eggs from Five Commercial Strains of White Leghorn Hens During One Year of Lay

1986 ◽  
Vol 65 (1) ◽  
pp. 63-66 ◽  
Author(s):  
G. DOYON ◽  
M. BERNIER-CARDOU ◽  
R.M.G. HAMILTON ◽  
F. CASTAIGNE ◽  
C.J. RANDALL
Keyword(s):  
Egg Quality ◽  
White Leghorn ◽  
One Year
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