scholarly journals Tyrosine, Protein and Ascorbic Acid Effects on Egg Shell Thickness from Chickens Subjected to Heat Stress

1962 ◽  
Vol 41 (6) ◽  
pp. 1832-1835 ◽  
Author(s):  
Paul A. Thornton
Keyword(s):  
Ascorbic Acid ◽  
Heat Stress ◽  
Shell Thickness ◽  
Egg Shell ◽  
Ascorbic Acid Effects

scholarly journals The effect of vitamin C on egg shell quality under high environmental temperatures.

1970 ◽  
Vol 18 (1) ◽  
pp. 62-71 ◽  
Author(s):  
A.R. El Boushy ◽  
M. Van Albada
Keyword(s):  
Ascorbic Acid ◽  
Heat Stress ◽  
Shell Thickness ◽  
Breaking Strength ◽  
Experimental Period ◽  
The Other ◽  
Shell Quality ◽  
Cold Room ◽  
Egg Shell ◽  
Environmental Temperatures

For a month 24 pullets 7 months old were kept in 2 rooms at 65 degrees to 70 degrees F and relative humidity 50 to 60% and were given a layer's mash with 2.75% Ca. The temperature of one room was then reduced to 55 degrees . For 6 months that of the other was raised to 85 degrees and the humidity to 75 to 80% for 2 months then reduced to the original conditions for 2.5 months and raised again for the rest of the experimental period. Ascorbic acid was given for the last 2 months. Sp. gr. of eggs and shell deformation, breaking strength and percentage shell, but not thickness, tended to fall throughout the trial. Heat stress significantly reduced all aspects of shell quality. In the cold room ascorbic acid did not significantly affect shell quality. In the hot room it increased sp. gr., weight and percentage shell but not shell thickness, breaking strength or deformation. In the cold room plasma Ca did not change significantly. High temperature and humidity significantly reduced plasma Ca, and ascorbic acid in the hot room raised it.-G. F. H. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals Ascorbic Acid and Acetylsalicylic Acid (Aspirin) in the Diet of Broilers Maintained Under Heat Stress Conditions

1988 ◽  
Vol 67 (8) ◽  
pp. 1183-1187 ◽  
Author(s):  
H.L. STILBORN ◽  
G.C. HARRIS ◽  
W.G. BOTTJE ◽  
P.W. WALDROUP
Keyword(s):  
Ascorbic Acid ◽  
Heat Stress ◽  
Acetylsalicylic Acid ◽  
Stress Conditions

scholarly journals PENAMBAHAN RIMPANG KUNYIT (CURCUMA DOMESTICA VAL.), TEMULAWAK (CURCUMA XANTHORRHIZA ROXB.), DAN TEMU PUTIH (CURCUMA ZEDOARIA ROSC.) DALAM RANSUM KOMERSIL TERHADAP KUALITAS TELUR BURUNG PUYUH (Coturnix-coturnix japonica)

ZOOTEC ◽  
2014 ◽  
Vol 34 (1) ◽  
pp. 103 ◽  
Author(s):  
Claudia Rondonuwu ◽  
J L.P Saerang ◽  
F J Nangoy ◽  
S Laatung
Keyword(s):  
Shell Thickness ◽  
Control Diet ◽  
Coturnix Japonica ◽  
Coturnix Coturnix Japonica ◽  
Curcuma Zedoaria ◽  
Egg Weight ◽  
Coturnix Coturnix ◽  
Curcuma Xanthorrhiza ◽  
Egg Shell

ABSTRACTADDITION TURMERIC GINGER, RHIZOME AND WHITE RHIZOME OF COMMERCIAL RATION TO EGGS’ QUALITY OF QUAILS.This study aims to determine the quality of quail eggs after added 2% turmeric (Curcuma domestica Val.), ginger (Curcuma xanthorrhiza Roxb.), and ginger and white (Curcuma zedoaria Rosc.) in the commercial ration. Animals used are of the type Coturnix-coturnix japonica quail females aged 6 weeks a total of 120 birds. Research using completely randomized design (CRD) with 4 treatments and 5 replications, and each replication consisted of 6 tail quail. Treatment is given as follows: R0 = control diet; R1= ration with 2% turmeric (Curcuma domestica Val.), R2 = 2% ration with ginger (Curcuma xanthorrhiza Roxb.), R3 = 2% ration with ginger and white (Curcuma zedoaria Rosc.). results of the study showed that the addition of 2% turmeric (Curcuma domestica Val.), ginger (Curcuma xanthorrhiza Roxb.), ginger and white (Curcuma zedoaria Rosc.) and not significantly different effect on egg weight, yolk color and egg shell thickness. And based on the results of this study concluded that the addition of 2% turmeric, ginger, ginger and white and can not increase egg weight, yolkcolor and egg shell thickness when added to a commercial ration.Keyword : Ration, Turmeric, Ginger, Ginger and White, Quail Eggs.

scholarly journals PENGARUH PROBIOTIK DAN EKSTRAK DAUN KATUK (Sauropus androgynous) TERHADAP TEBAL KERABANG DAN HAUGH UNIT (HU) PUYUH PETELUR (Effect Of Probiotic and Sauropus androgynous Leaf Extract on Eggshell Thickness and Haugh Unit (HU) in Laying Quail)

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Novia Rahayu ◽  
Dwi Wijayanti ◽  
Nurul Frasiska
Keyword(s):  
Shell Thickness ◽  
Leaf Extract ◽  
Egg Quality ◽  
Quality Standards ◽  
Bacillus Sp ◽  
Eggshell Thickness ◽  
Treatment Groups ◽  
Probiotic Treatment ◽  
Egg Shell ◽  
Haugh Unit

Abstrak Penelitian bertujuan untuk mengetahui pengaruh pemberian ekstrak daun katuk (Sauropus androgynous) dalam ransum terhadap tebal kerabang dan haugh unit (HU). Enam puluh ekor puyuh petelur fase produksi dibagi menjadi 4 kelompok perlakuan : 1) T0 : ransum tanpa perlakuan, 2) T1 : ransum dengan perlakuan ekstrak daun katuk 3.5g/kg ransum, 3) T2 : ransum dengan perlakuan probiotik (Bacillus sp. dan Saccharomycess sp.), 4) T3 : ransum dengan perlakuan ekstrak daun katuk 3.5g/kg ransum + probiotik (Bacillus sp. dan Saccharomycess sp.). Hasil penelitian menunjukkan bahwa perlakuan tidak berpengaruh nyata terhadap tebal kerabang (P>0.05) dan haugh unit (HU) (P>0.05). Telur hasil penelitian dari semua perlakuan menunjukkan kondisi telur yang sesuai dengan standar kualitas tebal kerabang dan haugh unit (HU). ¬Kata Kunci : Ekstrak daun katuk, haugh unit, probiotik, puyuh, tebal kerabang Abstract The study aims to determine the effect of giving sauropus androgynous leaf extract in the ration on egg quality. Sixty quails laying in the production phase were divided into 4 treatment groups: 1) T0: rations without treatment, 2) T1 : rations with katuk leaf extract treatment 3.5g / kg ration, 3) T2 : rations with probiotic treatment (Bacillus sp. And Saccharomycess sp.), 4) T3 : ration with katuk leaf extract treatment 3.5g / kg ration + probiotics (Bacillus sp. and Saccharomycess sp.). The results showed that the treatment had no significant effect on egg shell thickness (P>0.05) and haugh unit (HU) (P>0.05). Eggs from all treatments showed the condition of eggs in accordance with the quality standards of the thickness of the shells and haugh units (HU). Keywords: Eggshell thickness, haugh unit, probiotics, quail, sauropus androgynous leaf extract

Eggs, nests, and chicks

2020 ◽  
pp. 73-92
Author(s):  
Graham Scott
Keyword(s):  
Clutch Size ◽  
Shell Thickness ◽  
Anthropogenic Pollution ◽  
Genetic Determination ◽  
Trade Offs ◽  
Sexual Characteristics ◽  
Predator Risk ◽  
Egg Shell ◽  
And Function

This chapter considers the egg from its conception, through laying and incubation, to hatching; and chicks. It begins with the genetic determination of sex in birds, the resultant secondary sexual characteristics, and associated reproductive behaviours. The chapter then considers the structure and function of the egg. The evolution of clutch size and the trade-offs related to food availability and predator risk that birds make when optimizing clutch size are discussed. Egg shell colouration, camouflage, and mimicry are explored as are the impacts of urban living and of anthropogenic pollution upon egg shell thickness and strength. Nest building and the function of nests are described and incubation behaviours are discussed. Embryonic development is considered as are hatching and post-hatching behaviours.

scholarly journals Effects of Feeding Different Postbiotics Produced by Lactobacillus plantarum on Growth Performance, Carcass Yield, Intestinal Morphology, Gut Microbiota Composition, Immune Status, and Growth Gene Expression in Broilers under Heat Stress

Animals ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 644 ◽  
Author(s):  
Humam ◽  
Loh ◽  
Foo ◽  
Samsudin ◽  
Mustapha ◽  
...  
Keyword(s):  
Gene Expression ◽  
Ascorbic Acid ◽  
Heat Stress ◽  
Gut Microbiota ◽  
Immune Status ◽  
Basal Diet ◽  
Intestinal Morphology ◽  
The Other ◽  
Mrna Expression Level ◽  
Treatment Groups

The effects of feeding different postbiotics on growth performance, carcass yield, intestinal morphology, gut microbiota, immune status, and growth hormone receptor (GHR) and insulin-like growth factor 1 (IGF-1) gene expression in broilers under heat stress were assessed in this study. A total of 252 one-day-old male broiler chicks (Cobb 500) were randomly assigned in cages in identical environmentally controlled chambers. During the starter period from 1 to 21 days, all the birds were fed the same basal diet. On day 22, the birds were weighed and randomly divided into six treatment groups and exposed to cyclic high temperature at 36 ± 1 °C for 3 h per day from 11:00 to 14:00 until the end of the experiment. From day 22 to 42 (finisher period), an equal number of birds were subjected to one of the following diets: NC (negative control) basal diet; PC (positive control) basal diet + 0.02% oxytetracycline; or AA (ascorbic acid) basal diet + 0.02% ascorbic acid. The other three groups (RI11, RS5 and UL4) were basal diet + 0.3% different postbiotics (produced from different Lactobacillus plantarum strains, and defined as RI11, RS5 and UL4, respectively). The results demonstrated that birds fed RI11 diets had significantly higher final body weight, total weight gain and average daily gain than the birds that received the NC, PC and AA treatments. The feed conversion ratio was significantly higher in the RI11 group compared with the other groups. Carcass parameters were not affected by the postbiotic-supplemented diet. Postbiotic supplementation improved villi height significantly in the duodenum, jejunum and ileum compared to the NC, PC and AA treatments. The crypt depth of the duodenum and ileum was significantly higher in NC group compared to other treatment groups except RI11 in duodenum, and UL4 in ileum was not different with NC groups. The villus height to crypt depth ratio of duodenum and ileum was significantly higher for the postbiotic treatment groups and AA than the PC and NC treatment groups. The postbiotic RI11 group recorded significantly higher caecum total bacteria and Lactobacillus count and lower Salmonella count compared to the NC and PC treatment groups. The Bifidobacterium population in the NC group was significantly lower compared to the other treatment groups. The postbiotic (RI11, RS5 and UL4) and AA treatment groups showed lower Enterobacteriaceae and E. coli counts and caecal pH than the NC and PC treatment groups. The plasma immunoglobulin M (IgM) level was significantly higher in the birds receiving postbiotic RI11 than those receiving other treatments. The plasma immunoglobulin G (IgG) level was higher in the RI11 treatment group than in the NC, AA and RS5 groups. The plasma immunoglobulin A (IgA) level was not affected by postbiotic supplements. The hepatic GHR mRNA expression level was significantly increased in birds fed postbiotics RI11, RS5 and UL4, AA and PC compared to the NC-fed birds. Postbiotic RI11 led to significantly higher hepatic IGF-1 mRNA expression level compared to the NC, PC, and AA treatments. Mortality was numerically lesser in the postbiotic treatment groups, but not significantly different among all the treatments. In conclusion, among the postbiotics applied in the current study as compared with NC, PC and AA, RI11 could be used as a potential alternative antibiotic growth promoter and anti-stress treatment in the poultry industry.

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