scholarly journals Effect of Storage Time On the Hatchability of Eggs of Two-Line Dual-Purpose Combination for Production of Male Chickens for Meat

2021 ◽  
Vol 24 (2) ◽  
pp. 58-66
Author(s):  
Evgeni Petkov ◽  
Teodora Popova

Abstract The aim of the study was to assess the effect of the storage time on the hatching traits of eggs obtained from a two-line dual-purpose combination for production of male chickens that will be utilized for meat. The trial was carried out in the experimental poultry farm of the Institute of Animal Science-Kostinbrod, with a total of 150 Lohmann Brown Classic layers, at the age of 54 weeks. Hatching eggs were gathered for three weeks and were stored for 5, 10 and 15 days at 15-18°C ambient temperature prior incubation. The storage time had no effect on the fertility of the set eggs, however, it adversely affected the hatchability. Prolonged storage led to significant decline in the total hatchability (P=0.0027) and the hatchability of the fertile eggs (P<0.0001) which was lowest after 15 days of storage prior incubation. The viability of the chickens was influenced by the storage of the eggs prior incubation (P<0.0001), and decreased considerably when the chicks were hatched from eggs stored for 15 days.

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Rania A. Sharif ◽  
Khalid M. Abdelaziz ◽  
Najla M. Alshahrani ◽  
Fatimah S. Almutairi ◽  
Mohrah A. Alaseri ◽  
...  

Abstract Background Manufacturers of the extended-pour alginates claimed their dimensional stability through prolonged storage. No data confirmed the ability of these materials to maintain their dimensions and the reproduced oral details following their chemical disinfection. Therefore, this study evaluated the dimensional stability and surface detail reproduction of gypsum casts obtained from disinfected extended-pour alginate impressions through different storage time intervals. Methods Two hundred and forty three hydrocolloid impressions were made from one conventional (Tropicalgin) and two extended-pour (Hydrogum 5 and Chromaprint premium) alginates. These impressions were subjected to none, spray and immersion disinfection before their storage in 100% humidity for 0, 72 and 120 h. The dimensional stability and the surface detail reproduction were indirectly evaluated under low angle illumination on the resulted gypsum casts. At α = 0.05, the parametric dimensional stability data were analyzed using One-Way ANOVA and Tukey’s comparisons, while the nonparametric detail reproduction data were analyzed using KrusKal Wallis and Mann–Whitney's tests. Results All gypsum casts exhibited a degree of expansion; however, the recorded expansion values did not differ between test categories (P > 0.05). Generally, casts obtained from spray-disinfected impressions showed lower detail accuracy (P < 0.05). Immersion-disinfected extended-pour alginates produced casts with better detail accuracy following 120 h of storage (P < 0.05). Conclusion All alginates materials offer comparable cast dimensions under different testing circumstances. Extended-pour alginates offer casts with superior surface details following their immersion disinfection and 120 h of storage. Spray-disinfection using 5.25% sodium hypochlorite affects the surface details of casts obtained from conventional and extended-pour alginates adversely.


2017 ◽  
Vol 45 (10) ◽  
pp. 2260-2266 ◽  
Author(s):  
Kenneth J. Schmidt ◽  
Luís E. Tírico ◽  
Julie C. McCauley ◽  
William D. Bugbee

Background: Regulatory concerns and the popularity of fresh osteochondral allograft (OCA) transplantation have led to a need for prolonged viable storage of osteochondral grafts. Tissue culture media allow a longer storage time but lead to chondrocyte death within the tissue. The long-term clinical consequence of prolonged storage is unknown. Hypothesis: Patients transplanted with OCAs with a shorter storage time would have lower failure rates and better clinical outcomes than those transplanted with OCAs with prolonged storage. Study Design: Cohort study; Level of evidence, 3. Methods: A matched-pair study was performed of 75 patients who received early release grafts (mean storage, 6.3 days [range, 1-14 days]) between 1997 and 2002, matched 1:1 by age, diagnosis, and graft size, with 75 patients who received late release grafts (mean storage time, 20.0 days [range, 16-28 days]) from 2002 to 2008. The mean age was 33.5 years, and the median graft size was 6.3 cm2. All patients had a minimum 2-year follow-up. Evaluations included pain, satisfaction, function, failures, and reoperations. Outcome measures included the modified Merle d’Aubigné-Postel (18-point) scale, International Knee Documentation Committee (IKDC) form, and Knee Society function (KS-F) scale. Clinical failure was defined as revision OCA transplantation or conversion to arthroplasty. Results: Among patients with grafts remaining in situ, the mean follow-up was 11.9 years (range, 2.0-16.8 years) and 7.8 years (range, 2.3-11.1 years) for the early and late release groups, respectively. OCA failure occurred in 25.3% (19/75) of patients in the early release group and 12.0% (9/75) of patients in the late release group ( P = .036). The median time to failure was 3.5 years (range, 1.7-13.8 years) and 2.7 years (range, 0.3-11.1 years) for the early and late release groups, respectively. The 5-year survivorship of OCAs was 85% for the early release group and 90% for the late release group ( P = .321). No differences in postoperative pain and function were noted between the groups. Ninety-one percent of the early release group and 93% of the late release group reported satisfaction with OCA results. Conclusion: The transplantation of OCA tissue with prolonged storage is safe and effective for large osteochondral lesions of the knee and has similar clinical outcomes and satisfaction to the transplantation of early release grafts.


Author(s):  
Kun Sha ◽  
Ping Qian ◽  
Li-Jun Wang ◽  
Zhan-hui Lu ◽  
Li-Te Li

In this study, quality of Man-tou, the Chinese traditional steamed bread during storage was studied. Values for water retention capacity, total water solubles, soluble starch, and soluble amylose and amylopectin of Man-tou decreased with storage time. Results showed that hardness, chewiness and gumminess of Man-tou increased, while, springiness cohesiveness and resilience decreased along with prolonged storage time (p<0.05). Sensory evaluation results showed that all sensory rating of Man-tou, including softness, stickiness, cohesiveness, elasticity, taste and total score, dropped drastically within 24 h of storage time (p<0.05). Differential Scanning Calorimeter (DSC) was used to determine crystalline structure of amylopectin in Man-tou, and the value for enthalpy of crystallization was found increased with storage time. Amylopectin crystallization was significantly associated to Man-tou firming (p<0.01).


2017 ◽  
Vol 4 (2) ◽  
pp. 16
Author(s):  
Angelica C. Bumanlag ◽  
Hannah Lei M. Harada ◽  
Cynthia C. Divina ◽  
Marlon B. Ocampo ◽  
Lerma C. Ocampo

Appropriate holding conditions for post mortem testicles of goat to yield quality epididymal sperm (ES) as a source of genetic material for cryobanking and fertilization studies are lacking. In this study, the effect of storage time on the motility of ES from post mortem testicles maintained at 5°C was evaluated. In the laboratory, the cauda epididymides were excised from the testicles after 4 hr (G-1) and 24 hr (G-2) of holding time before collecting the sperm in a Tris-citrate buffered solution and evaluated using a CASA. Sperm motility profiling revealed a subpopulation of static, slow, motile and progressive ES. The proportion of static sperm in the control (16.97±6.21) and G-1 (21.53±5.60) were lower significantly than G-2 (36.13±5.05). The proportion of slow moving sperm was lower significantly than G-1 (23.31±3.57) and G-2 (25.45±3.32). The proportion of motile and progressive motile sperm decreases significantly (P<0.05) as the holding time increases at 78.46±4.64% (G-1) to 63.85±4.06 (G-2) and 45.53±8.89 (G-1) to 25.46±8.42 (G-2), respectively. The results showed that prolonged storage of post mortem testicles at 5°C could result to a reduced percentage of motile and progressively motile ES. Nevertheless, this considerable proportion of ES remained useful both for cryobanking and fertilization studies.


2012 ◽  
Vol 59 (2) ◽  
pp. 175-182
Author(s):  
Marcin Horbowicz

The studies on effects of freezing and drying on quercetin content in shallot, as well as storage time of obtained products, were carried out. Two landraces, marked PV-S and PV201, were taken for the studies. The process of drying was carried out using a semi-technological drier operated by forced airflow. Dried slices of shallot were stored in ambient temperature in closed glass containers, and quercetin was determined periodically. The process of drying and further 8 months of storage caused a small decrease (15 - 16%) of the quercetin level in shallot. During the process of freezing of sliced shallot and its subsequent storage over 8 months in temperature -21<sup>°</sup>C, the quercetin level declined slightly, too, although the decline was higher than in case of drying and storage of dried shallot.


2020 ◽  
Vol 222 ◽  
pp. 03007
Author(s):  
Elena Pilyukshina ◽  
Vladimir Khaustov ◽  
Alexander Ozhimkov ◽  
Valentina Rusanova ◽  
Alexey Popelyaev

The aim of the study presented in this paper was to compare the reproductive qualities of laying hens of the parent flock of the ROSS 308 cross when using manual and automatic egg collection. The experimental part was carried out in the production conditions of a separate subdivision “Novosafonovskaya poultry farm” of Kuzbass Broiler LLC on laying hens of the parent flock of the ROSS 308 cross at the age of 155-435 days. The use of automatic nests for collecting hatching eggs did not affect the intensity of egg production, but contributed to an increase in the yield of hatching eggs due to a decrease in the culled eggs because of egg contamination, breakage, cracked shell and others. A decrease in the number of cleaned eggs among the hatching eggs contributed to an increase in the hatching of chicks and, as a consequence, an increase in the yield of day old chicks per initial layer by 11.9 heads or 8.5%.


2020 ◽  
Vol 3 (2) ◽  
pp. 165
Author(s):  
Rahdi Fajar Miftahulkhair ◽  
Andi Besse Patadjai ◽  
Suwarjoyowirayatno Suwarjoyowirayatno

ABSTRACT         The aim of this study was to determine the effect on the freshness quality of thorns leaves milkfish storing at ambient temperature in vacuum packaging. This study used a non-factorial randomized design (CRD) which was storage time consisting of 4 treatments H0 (0 days), H2 (2 days), H4 (4 days), and H6 (6 days). Each treatment was carried out with 3 times replication. Based on the test results, it showed that the difference in different storage duration significantly affected on freshness value of fish (TVB and TMA) of thorns leave milkfish at ambient temperature, along with the time of storage of vacuum packaged fish, the value of TVB and TMA increased on the 6th day of storage (H6) had the highest TVB and TMA values of 24.40 mgN / 100g and 3.43 mgN / 100g, respectively. Keywords: milkfish leave thorns, pindang, sensory, vacuum.ABSTRAKTujuan dari penelitian ini adalah untuk mengetahui nilai kesegaran ikan pindang bandeng tanpa duri kemasan vakum pada suhu ambient. Penelitian ini menggunakan rancangan percobaan adalah Rancangan Acak Lengkap (RAL) non faktorial yakni waktu penyimpanan yang terdiri dari 4 perlakuan yaitu H0 ( 0 hari), H2 (2 hari), H4 (4 hari) dan H6 (6 hari). Masing-masing perlakuan dilakukan sebanyak tiga kali pengulangan, sehingga diperoleh jumlah satuan percobaan sebanyak 12 unit. Berdasarkan hasil pengujian, perbedaan lama penyimpanan berbeda secara signifikan mempengaruhi nilai kesegaran ikan (TVB dan TMA) bandeng tanpa duri yang disimpan pada suhu ambeien, seiring dengan  waktu penyimpanan ikan pindang bandeng tanpa duri kemasan vakum, nilai TVB dan TMA meningkat. Pada hari ke 6 penyimpanan (H6) memiliki nilai TVB dan TMA tertinggi masing-masing 24,40 mgN/100g dan 3,43 mgN/100g.Kata kunci: ikan bandeng tanpa duri, pindang, vakum


EDIS ◽  
1969 ◽  
Vol 2003 (16) ◽  
Author(s):  
Gary D. Butcher ◽  
Amir H. Nilipour

In a commercial broiler integration, the objective is to provide the best quality hatching eggs that produce the greatest number of quality chicks per hen housed. A properly managed hen can produce more than 180 eggs, which potentially can result in approximately 600 pounds of broiler meat. However, there exists great variation in the amount of meat produced per hen among integrations. Much of this difference can be traced back to how the eggs were managed during collection, storage, and incubation. The production goals of an integration can be achieved when basic concepts of optimum fertile egg selection and grading, plus common sense management, are considered. This document is VM125, one of a series of the Animal Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date April 29, 2002. VM125/VM092: Broiler Performance From Cull Eggs (ufl.edu)


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