scholarly journals Effect of water pH on the early developmental responses in zebrafish (danio rerio)

2015 ◽  
Vol 26 (1) ◽  
pp. 85-89 ◽  
Author(s):  
MM Zahangir ◽  
F Haque ◽  
GM Mustakim ◽  
H Khatun ◽  
MS Islam
Keyword(s):  
Danio Rerio ◽  
Egg Production ◽  
Production Performance ◽  
Hatching Rate ◽  
Acidic Ph ◽  
Control Medium ◽  
Water Ph ◽  
Developmental Responses ◽  
And Control ◽  
Early Developmental

This experiment was conducted to evaluate the egg production performance in zebrafish (Danio rerio) in different pH treatments. Zebrafish were reared continuously 15 days in 3 different pH treatments like control (pH 6.8-7.4), acidic (pH 5.0-6.0) and basic (pH 9.0-10.0) media and then eggs were collected from them. Numbers of egg collection from the acidic and basic media were significantly varied from the control. Collected eggs from acidic, basic and control media were then incubated at different pH treatments ranging from pH 2.0-12.0. Significant differences were observed in hatching rate and time in control medium from two other different treatments.Progressive Agriculture 26:85-89, 2015

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 Effects of Bacillus subtilis on Production Performance, Bone Physiological Property, and Hematology Indexes in Laying Hens

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2041
Author(s):  
Xinyu Zou ◽  
Sha Jiang ◽  
Mi Zhang ◽  
Haiqiang Hu ◽  
Xiaoling Wu ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Egg Production ◽  
Laying Hens ◽  
Maximum Load ◽  
Physiological Property ◽  
Production Performance ◽  
Feed Additive ◽  
Basic Diet ◽  
Bone Damage ◽  
Diet Control

This study was to investigate the effects of Bacillus subtilis on production performance and bone pathophysiological characteristics of layers. Twenty-four 48-week-old Lohmann Pink-shell laying hens were randomly divided into two groups: a basic diet (control) and the basic diet mixed with Bacillus subtilis (0.5 g/kg) for a 60-day trial. Statistically, independent-sample t-test was used to assess the treatment differences. The results showed that Bacillus subtilis supplementation improved the percent of marketable eggs (p < 0.05) with reduced numbers of broken and soft-shelled eggs but had no effects on egg weight, height of albumen, yolk color, and Haugh unit (p > 0.05). Bacillus subtilis supplement also elevated maximum load (p = 0.06), maximum stress (p = 0.01), stiffness (p < 0.01), and Young’s modulus (p < 0.01) but suppressed maximum strain (p = 0.06) in the femur. In addition, compared with control birds, phosphorous concentration (p < 0.01) was reduced in serum at day 61 but increased in the femur (p < 0.05) in Bacillus subtilis fed birds. Bacillus subtilis fed birds also had lower magnesium concentrations in both femur (p = 0.04) and feces (p = 0.09). Furthermore, Bacillus subtilis increased plasma estrogen concentration (p = 0.01) and femur TNF receptor superfamily member 11b (OPG) expression (p < 0.05) but reduced plasma IL-1 (p < 0.01) and TNF-α (p < 0.01) concentrations. These results indicate that Bacillus subtilis could be used as a health promotor to reduce overproduction-induced inflammation and associated bone damage and to increase marketable egg production. The data provide evidence for developing a management strategy to use Bacillus subtilis as a feed additive to improve marketable egg production and health and welfare status of laying hens.

scholarly journals SAPU-SAPU FISH (Hyposarcus pardalis) AS A SINGLE PROTEIN SOURCE FOR LAYING MOJOSARI DUCKS

2016 ◽  
Vol 41 (3) ◽  
pp. 117-124 ◽  
Author(s):  
B. Indarsih ◽  
A. Asnawi ◽  
D. K. Purnamasari
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Egg Production ◽  
Egg Quality ◽  
Production Performance ◽  
Protein Source ◽  
Egg Mass ◽  
Final Body Weight ◽  
Egg Number ◽  
Single Protein

The present study was conducted to evaluate the optimum level of dietary inclusion and the form of feeding sapu-sapu fish (SSF) as a single protein source for feed components of small holder Mojosari duck farming. A total of 180 twenty four wk-old laying ducks were fed with two forms (sun-dried and ground-fresh) and three levels of SSF (10, 20 and 30%) from 24 to 32 wk of age. Experimental diets were formulated containing 105.1; 141.5 and 177.9 g/kg crude protein and 3078; 3065 and 3052 kcal metabolizable energy (ME) /kg diet. Production performance and egg quality were measured. The form of SSF had a significant effect (P<0.0001) on feed intake, egg production, feed conversion, egg mass and egg number except final body weight. No significant effects (P>0.05) were found on all of the performance parameters measured due to feeding levels of SSF except feed intake and final body weight. The interaction of form and feeding level was significant (P<0.05) on egg and body weights. Low performance and egg quality were observed in the birds fed a diet containing the dried SSF. It can be suggested that local ducks required 20% SSF as a single protein source for maximum egg production (41.2%) and total egg number per wk (3.1 eggs/bird/wk) during 8 wk of rearing period. Egg quality can be improved by feeding the fresh SSF. However, due to be sufficiently better processing technique, the dried SSF would be potential to replace the common fish for laying ducks.

scholarly journals Mites affecting hen egg production: some considerations for Brazilian farms

2013 ◽  
Vol 43 (7) ◽  
pp. 1230-1237 ◽  
Author(s):  
Leandro do Carmo Rezende ◽  
Lucas Maciel Cunha ◽  
Cristina Mara Teixeira ◽  
Paulo Roberto de Oliveira ◽  
Nelson Rodrigo da Silva Martins
Keyword(s):  
Egg Production ◽  
Integrated Control ◽  
Mite Species ◽  
Economic Losses ◽  
Poultry Industry ◽  
Control Programs ◽  
Cultural Aspects ◽  
Mite Control ◽  
Mite Infestations ◽  
And Control

The poultry industry is characterized for its constant search for productivity and profitability, which are based on flock health status. Brazilian Commercial laying hens (Gallus gallus domesticus) have been impacted significantly by mite infestations. This review aims to compile the literature on the occurrence, economic losses, biology, epidemiology and control of mite species considered important for the Brazilian laying poultry industry. The national experience was compared with practices of other countries and a scarcity of studies on this subject in Brazil was evident. The poultry industry has prioritized the use of pesticides to control infestations with little regard for the adverse effects. In this context, the integrated control programs using several strategies simultaneously constitute the best alternative to mite control. Integrated control programs involve measures of chemical, physical and biological nature, as well as attention to cultural aspects. However, studies should be performed aiming at the development of new control methods, evaluating the adequacy of practices developed in other countries to the national reality.

scholarly journals Pengaruh Jarak Buangan Air Limbah Industri di Daerah Jaten-Karanganyar terhadap Kadar Chromium dalam Air dan Tanah Permukaan Saluran Air Pungkuk

2018 ◽  
Vol 20 (2) ◽  
pp. 68
Author(s):  
Dwi Priyo Ariyanto ◽  
Indrowuryanto Indrowuryanto ◽  
Hery Widijanto
Keyword(s):  
Waste Water ◽  
Concentration Change ◽  
Sample Analysis ◽  
Industry Waste ◽  
Water Ph ◽  
Pollutant Source ◽  
Independent Variable ◽  
Value Of Water ◽  
Cr Concentration ◽  
And Control

<p>The purpose of this research was to know the effect of industry waste water distance in Jaten-Karanganyar on Cr concentration in the water and soils at Pungkuk waterworks, also to know Cr concentration on that waterworks. The kind of this research was explorative research. The independent variable was treatment of take some water and soils sample at 0 km, 0.5 km and 1 km distance from pollutant source at Pungkuk waterworks and control.</p><p>The result showed that distance where farther can affect Cr<sup>6+</sup> concentration change in the soils and in the water were increase. The increasing of Cr<sup>6+</sup> concentration change in the soils affected Cr<sup>6+</sup> acumulation in the soils. The concentration of Cr<sup>6+</sup> in the water has been influenced by value of water pH and EMC. Value of water pH also was influenced water EMC value. From sample analysis result showed that there was not polluted of heavy metal especially Cr<sup>6+</sup> (between 0.017-0.093 ppm).</p>

scholarly journals Penggunaan Tepung Limbah Udang sebagai Bahan Pakan Sumber Protein terhadap Performa Produksi Puyuh Fase Layer (Coturnix-coturnix japonica)

2018 ◽  
Vol 5 (2) ◽  
pp. 31
Author(s):  
Hamdan Has ◽  
Astriana Napirah ◽  
Widhi Kurniawan ◽  
Natsir Sandiah
Keyword(s):  
Egg Production ◽  
Production Performance ◽  
Feed Consumption ◽  
Shrimp Waste ◽  
Feed Conversion ◽  
Treatment Unit ◽  
Egg Weight ◽  
Randomized Design ◽  
Average Production ◽  
Laying Quail

ABSTRAKLimbah udang merupakan limbah pengolahan udang yang memiliki potensi sebagai pakan sumber protein bagi ternak puyuh. Penelitian ini bertujuan mengkaji penggunaan tepung limbah udang (TLU) sebagai sumber protein pakan pada puyuh fase layer. Penelitian ini menggunakan rancangan acak lengkap empat perlakuan lima ulangan perlakuan yang digunakan terdiri dari empat level penggunaan tepung limbah udang dalam ransum yaitu P0 (kontrol), P1 (5% TLU), P2 (7,5% TLU) dan P3 (10% TLU), tiap unit perlakuan disi dengan 5 ekor puyuh. Puyuh yang diguanakan adalah puyuh fase layer umur 20 minggu, sebanyak 100 ekor yang didistribusikan kedalam 20 unit percobaan. Bahan pakan yang digunakan adalah jagung, dedak padi, konsentrat petelur dan tepung limbah udang. Data yang diperoleh dianalisis ragam dan data yang berbeda nyata (P<0,05) diuji lanjut menggunakan uji duncan. Variabel yang diamati adalah performa produksi: konsumsi pakan, produksi telur, bobot telur dan konversi ransum. Hasil penelitian menunjukkan bahwa penggunaan TLU dalam ransum (P1,P2 dan P3) menunjukkan pengaruh nyata (P<0,05) dibanding kontrol pada minggu ke-tiga penelitian terhadap bobot telur dan konversi ransum, penggunaan TLU (P1,P2,P3) selama lima minggu meningkatkan konsumsi ransum (P<0,05) dibanding kontrol tetapi tidak berbeda nyata (P>0,05) terhadap produksi telur, bobot telur dan konversi ransum. Kesimpulan penelitian ini bahwa penggunaan TLU dalam ransum dapat digunakan hingga level 7,5% sedangkan level 10% menunjukkan adanya penurunan rata-rata performa produksi.Kata kunci: tepung limbah udang, puyuh fase layer, performa produksiABSTRACTShrimp waste was shrimp processing waste which has the potential as protein source for quail feed. This study was aimed to examine the use of shrimp waste flour (SWF) asprotein source for laying quail feed. This study used  completely randomized design that consist of four treatments and five replications.The treatmentswere using levels of shrimp waste flour in feed and consist of P0 (control), P1 (5% SWF), P2 (7.5% SWF) and P3 (10% SWF ). Each treatment unit was filled with 5 quails. One hundred of 20 weeks laying quails were used in this study. Self mixing feed that contained corn, rice bran, laying concentrate and shrimp waste flour were used in this study. The data obtained were analyzed using analyze of variance and continued using Duncan multiple range test. The variables observed were production performance that consist of feed consumption, egg production, egg weight and feed conversionratio. The results showed that the use of SWF in feed (P1, P2 and P3) showed a significant effect (P <0.05) compared to controls in the third week of research on egg weight and feed conversion ratio.The use of SWF (P1, P2, P3) for five weeks increased feed consumption (P <0.05) compared to controls but not significantly different (P>0.05) for egg production, egg weight and feed conversion. The conclusion of this study was the use of SWF in feed can be used until 7.5% on laying quail feed while the level of 10% indicates a decrease in average production performance.Keywords: shrimp waste flour, laying quail, production performance

scholarly journals Effects on egg production and quality of supplementing drinking water with calcium and magnesium

2021 ◽  
Vol 51 (4) ◽  
pp. 469-476
Author(s):  
X.J. Yi ◽  
A. Rehman ◽  
R.W. Akhtar ◽  
A. Abbas ◽  
K. Hussain ◽  
...  
Keyword(s):  
Drinking Water ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Production Performance ◽  
Egg Weight ◽  
Calcium And Magnesium ◽  
Eggshell Colour ◽  
Haugh Unit

This study was conducted to appraise the effects on egg quality and production performance of laying hens when drinking water was supplemented with calcium (Ca) and magnesium (Mg). A total of 384 (64-week-old) Hy-line Brown laying hens were assigned at random to four treatments, which consisted of CON: unsupplemented drinking water; T1: drinking water + 2 mg/L Ca + 250 mg/L Mg; T2: drinking water + 4 mg/L Ca + 510 mg/L Mg /10 L; and T3: drinking water + 5 mg/L Ca and 760 mg/L Mg. The experiment lasted six weeks. Water intake increased linearly in week 1 with the rising levels of Ca and Mg in the drinking water. Increasing the Ca and Mg levels improved eggshell strength (week 2 (P =0.01), week 5 (P =0.01), and week 6 (P = 0.03), and eggshell thickness (week 6) (P =0.02) and reduced the rate at which eggs were broken (week 4) (P =0.01). The supplemental Ca and Mg did not affect egg production, egg weight, Haugh unit, albumen height, eggshell colour, and yolk colour compared with CON. Nor did they influence the Haugh unit and albumen height after storing for 1, 5, 10 and 15 days. In conclusion, adding Ca and Mg to the drinking water increased the thickness and strength of the eggshells.

scholarly journals Crossbred Local Chickens from East Nusa Tenggara Province Indonesia Under Semi Intensive Management System

2021 ◽  
Vol 748 (1) ◽  
pp. 012003
Author(s):  
N.G.A Mulyantini S.S ◽  
Ulrikus R Lole
Keyword(s):  
Weight Gain ◽  
Artificial Insemination ◽  
Management System ◽  
Egg Production ◽  
Abdominal Fat ◽  
Production Performance ◽  
The Other ◽  
Intensive Management ◽  
Commercial Grower ◽  
Local Chickens

Abstract The objective of this study was to compare the performance of four-breed combination under semiintensive management system. The experiment used 160 females and 40 males chickens as parents. Artificial insemination was performed to produce the experimental chicken of the four breed combinations (1. Sabu x Sabu, 2. Sabu x Semau, 3. Sabu x KUB, 4. Semau x KUB). The chickens were fed with chick starter crumb sad libitum from day old to 4 weeks of age. From 4-8 weeks of age, chickens were allowed to scavenge during the day, and also given commercial grower pellets + rice bran + corn (5:4:1). Combination of Sabu x KUBfrom 4-8 weeks of age were significantly heavier (P < 0.05) than the other combination breeds. Feed intake in the Sabu x KUB group was the lowest, and their weight gain was the highest among the others group(P < 0.05). The combination Sabu x KUB also had the highest egg production, and hatchability. However, the percentage of abdominal fat of Sabu x KUB were higher than others groups. In conclusion, combination Sabu x KUB had the best growth performance and egg production performance, but not for the percentage of abdominal fat.

scholarly journals Is maternal thyroid hormone deposition subject to a trade-off between self and egg because of iodine? An experimental study in rock pigeon

2021 ◽  
Author(s):  
Tom Sarraude ◽  
Bin-Yan Hsu ◽  
Suvi Ruuskanen ◽  
Ton Groothuis
Keyword(s):  
Egg Production ◽  
Developmental Stages ◽  
Columba Livia ◽  
Captive Population ◽  
Restricted Diet ◽  
Trade Off ◽  
Metabolic Hormones ◽  
Hormone Exposure ◽  
Maternal Thyroid ◽  
Early Developmental

Maternal hormones constitute a key signalling pathway for mothers to shape offspring phenotype and fitness. Thyroid hormones (THs; triiodothyronine, T3 and thyroxine, T4) are metabolic hormones known to play crucial roles in embryonic development and survival in all vertebrates. During early developmental stages, embryos exclusively rely on the exposure to maternal THs, and maternal hypothyroidism can cause severe embryonic maldevelopment. The TH molecule includes iodine, an element that cannot be synthesised by the organism. Therefore, TH production may become costly when environmental iodine availability is low. This may yield a trade-off for breeding females between allocating the hormones to self or to their eggs, potentially to the extent that it even influences the number of laid eggs. In this study, we investigated whether low dietary iodine may limit TH production and transfer to the eggs in a captive population of Rock pigeons (Columba livia). We provided breeding females with an iodine-restricted (I- diet) or iodine-supplemented diet (I+ diet) and measured the resulting circulating and yolk iodine and TH concentrations and the number of eggs laid. Our iodine-restricted diet successfully decreased both circulating and yolk iodine concentrations compared to the supplemented diet, but not circulating or yolk THs. This indicates that mothers may not be able to independently regulate hormone exposure for self and their embryos. However, egg production was clearly reduced in the I- group, with fewer females laying eggs. This result shows that restricted availability of iodine does induce a cost in terms of egg production. Whether females reduced egg production to preserve THs for themselves or to prevent embryos from exposure to low iodine and/or THs is as yet unclear.

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