growth supplement
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2022 ◽  
Vol 951 (1) ◽  
pp. 012017
Author(s):  
I Mangisah ◽  
N Suthama

Abstract Synbiotics are a combination of probiotics and prebiotics that have a positive effect on livestock performance. The method of giving synbiotics as a growth supplement needs to be studied to get the best results. This study aimed to investigate the effect of administering synbiotic (a mixture of Lactobacillus casei and porang tuber extracts (LCPE) in water or as feed supplement on performance and nutrient digestibility of Tegal duck. The research used a total number of 240-day old ducks with an average body weight of 47.84 ± 6.32 g. The ducks were weighed and distributed into 24 groups. Two experiments (I and II) were carried out simultaneously in the same cage and time. Each experiment used 120 ducks. Ducks were adapted from the age of 1 to 14 days. Parameter data were measure in ducks aged 15 to 42 days. Trial I included 3 groups of dietary synbiotic (0, 10, 20 ml/kg) through feed, while In trial II, the ducks were fed synbiotics (0; 10; 20 ml/L) through water drinking for four weeks. The observed variables included growth performance and nutrient digestibility. The mixture of Lactobacillus casei and glucomannan from porang tuber extract improved nutrient digestibility and duck performance. The best performance and nutrient digestibility is LCPE 20 ml/L drinking water.


Author(s):  
Sohana Momtaj ◽  
. Sushma ◽  
Saranjeet Kaur

The main purpose of this article is to review role of several organic growth additives such Apple juice, coconut water (CW), maize extract, banana homogenate (BH), peptone and protocorms etc which stimulate the multiplication rate of various orchid species in in vitro multiplication. These organic growth supplements help to increase the number of shoots, root and leaf in culture medium. In many orchid tissue culture, organic growth supplements, which are the most essential medium aspect to stimulate tissue growth, production and facilitate the regeneration of shoot. The banana homogenate (BH) had the highest rate of regeneration and root developments. The use of organic growth supplements resulted in increased regeneration, the creation of more shoots and the development of fresh plantlets. Amino acids, proteins, vitamins, carbohydrates and various types of organic compounds are present in these growth supplements. These components have the potential to play a significant role in the development and creation of culture. Now more research is needed to figure out which factors are responsible for the organic additives’ promoter effect.


2020 ◽  
Vol 2 (1) ◽  
pp. 60

The potential of humic acid as a growth supplement in micropropagation of eclipta alba is reported in the present investigation. Eclipta alba explants were grown in MS media with BAP and Kinetin as growth factors, and it has been observed that BAP was more effective for in vitro regeneration of the explants. On the other hand, when humic acid was supplemented along with the growth factors, there is an increase in the shoot proliferation within a reduced period of time. The optimum concentration of humic acid required was found to be 300mg/100ml for the effective growth of explants. This study, therefore, supports the use of humic acid as a suitable growth supplement in micropropagation studies.


2020 ◽  
Vol 9 (18) ◽  
Author(s):  
John A. Kyndt ◽  
Dayana Montano Salama ◽  
Terry E. Meyer

The genome sequence of Blastochloris sulfoviridis is 3.85 Mb with a GC content of 68%. Its nearest relative is B. tepida (average nucleotide identity [ANI], 91.5%), followed by B. viridis (ANI, 83%). According to ANI and whole-genome-based phylogenetic analysis, the nearest relatives of Blastochloris are Rhodoplanes and Rhodopseudomonas, confirming the recognition of distinct genera.


2017 ◽  
Vol 1 (2) ◽  
pp. 149-154
Author(s):  
Harun Ülger ◽  
Ahmet K. Karabulut ◽  
Margaret K. Pratten

Abstract Yolk sac blood islands are the first morphologic evidence of hematopoietic development during mammalian embryogenesis, and visseral yolk sac mesoderm gives rise to the first embryonic blood cells within a rich endothelial network. Present study reports the isolation and culture of endothelial cells from 11.5 days old embryonic rat yolk sac. The embryos were dissected from 11.5 days pregnant Wistar rat (Rattus norvegicus) and the external yolk sac membrane and embryos were removed under aseptic condition. After washing three times with Calcium-Magnesium free Hank’s balanced salt solution (CMF-HBSS), the tissue was minced, and fragments were incubated in CMF-HBSS containing 2mg/ml Trypsin, 100mg/ml collagenase I and 40mg/ml DNAse at 37°C until the tissue was completely dispersed. The digestion effect was then neutralized by fetal bovine serum at 1:3 (v/v). The cell suspension was centrifuged at 1000 rpm for 10 min., the supernatants were discarded and the cell pellets resuspended in Dulbecco modified Eagle medium containing 15% fetal bovine serum, 1.25mg/ml amphotericin B, 25mg/ml gentamycin sulphate and 100mg/ml endothelial cell growth supplement. The resuspended cells were plated in two diverse 25cm2 culture flasks for overnight differential adherence at 37°C. The non-adherent cells were removed by gentle aspiration and adherent cells refed with fresh medium. The cells were transferred using 1ml of 0.2% Trypsin when cultures reached near-confluence. The cultured yolk sac endothelial cells had characteristic cobblestone appearence and positive immunofluorescent staining for von Willebrand Factor (vWF). Weibel-Palade bodies, the major ultrastructural marker for endothelium, were also detected in cultured cells by electron microscopy.


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