scholarly journals The improvement of eggs quality of Mojosari duck (Anas javanica) with soybean husk fermentation using cellulolytic bacteria of Spodoptera litura

2018 ◽  
Vol 11 (5) ◽  
pp. 720-725
Author(s):  
Sri Hidanah ◽  
Dady Soegianto Nazar ◽  
Erma Safitri
2018 ◽  
Vol 97 (7) ◽  
pp. 2506-2515 ◽  
Author(s):  
J. Herrera ◽  
B. Saldaña ◽  
L. Cámara ◽  
J.D. Berrocoso ◽  
G.G. Mateos

2021 ◽  
Vol 306 ◽  
pp. 01055
Author(s):  
Ade Aliyya ◽  
Apriwi Zulfitri ◽  
Umi Zakiah ◽  
Arief Heru Prianto ◽  
Titik Kartika ◽  
...  

Chemical pesticide has been used extensively to control Spodoptera litura that attack economically important crops.The use of synthetic pesticides with high intensity is detrimental to the quality of life. The objective of this study was to evaluate the insecticidal activity of entomopathogenic fungi and neem-based biopesticide on S. litura using spraying and forced feeding method. The treatments were spore solution of Trichoderma viride, Metarhizium sp. T4.B23, Metarhizium sp. B2.2 applied at 108 spores/mL, biopesticide formulation containing neem extract (Agr1) at 10% (v/v), and water as control. Each treatment was sprayed 0.3 mL directly onto larvae of S. litura while in forced feeding method, the larvae were fed on 1 gr of treated water spinach. Entomopathogenic fungal spore solution did not show efficacy on S litura larvae in both methods, while Agr 1 caused 90 and 40% mortality in spraying and forced feeding method, respectively. Furthermore, the efficacy of Agr 1 was compared to Agr 2 that contains neem extract and wood vinegar. Agr 2 caused 100% mortality when sprayed onto S. litura larvae, and more than 90% of larvae were died when forced to feed treated water spinach. Agr2 has better potential than Agr1 to control S. litura.


2020 ◽  
Vol 50 (2) ◽  
pp. 178-185 ◽  
Author(s):  
H.P.F. Xavier ◽  
N.S.M. Leandro ◽  
A.G. Mascarenhas ◽  
I.C.S. De Araújo ◽  
N.F. De Oliveira ◽  
...  

The aim of this study was to evaluate the effects of guava extract as a dietary supplement for Japanese quail hens on incubation parameters, intestinal development, and the quality of newly hatched chicks. Six hundred and forty-eight eggs were collected from Japanese quail hens fed diets with 0.0, 3.0, 6.0, and 9.0 g/kg of guava extract. The study consisted of four treatments, six replicates, and 27 eggs per replicate. The guava extract contained 2% ellagic acid. The eggs were incubated at 37.5 °C and 65% relative air humidity. The hatch window, hatchability, embryo development in unhatched eggs, quality of newly hatched quails, and intestinal histomorphometry of a duodenum segment were evaluated. Differences among the treatments in hatchability and the hatch window were not significant. The guava extract did not affect mortality rate, live pecking, dead pecking, and contaminated and inverted eggs. The number of infertile eggs was lower in the groups that received 3.0 and 9.0 g/kg of extract in their diets. Use of up to 3.0 g/kg of guava extract in the diet increased the weight of both eggs and newly hatched chicks. The quality score of newly hatched quail was similar across treatments. The inclusion of 3.0 g/kg of guava extract in the diet of Japanese quail breeder hens increased the hatchling weight of the chicks and improved the villus to crypt ratio of their duodenum. Keywords: embryology, embryo metabolism, hatchery, incubation, breeder nutrition


2020 ◽  
Vol 1 (1) ◽  
pp. 24
Author(s):  
Ken Ratu gharizah Alhuur ◽  
Andry Pratama ◽  
Endah Yuniarti

AbstrakAsupan gizi yang optimal terutama asupan protein, baik dimasa pandemi Covid-19 maupun dalam situasi normal, penting untuk dipenuhi. Telur merupakan salah satu pangan sumber protein dengan harga yang cukup terjangkau dibandingkan sumber protein hewani lain, seperti daging dan susu. Sehingga telur banyak dipilih oleh masyarakat luas dalam pemenuhan kebutuhan protein harian mereka. Dalam masa pandemi Covid-19 ini, banyak bermunculan pedagang telur dadakan di kalangan masyarakat, sebagai salah satu imbas dari anjloknya harga telur di pasaran. Namun, para pedagang telur dadakan ini seringkali tidak mengindahkan kualitas telur yang mereka jual. Hal ini tentu akan berakibat merugikan dan membahayakan bagi kesehatan konsumen. Untuk itu, sosialisasi kepada masyarakat mengenai cara membedakan kualitas telur dan cara penyimpanan telur yang baik menjadi penting untuk dilakukan, agar masyarakat dapat memilih dan mendapatkan telur dengan kualitas yang baik dalam jangka waktu yang lebih Panjang. Manfaat dari sosialisasi ini adalah partisipan menjadi lebih teliti dalam memilih telur yang mereka beli, dan mengetahui cara penyimpanan telur yang benar agar masa simpan telur yang mereka beli dapat bertahan lebih lama.Kata Kunci: asupan gizi, kualitas telur, cara penyimpanan telurAbstractOptimal nutritional intake, especially protein intake, both during the Covid-19 pandemic and in normal situations, is important to fulfill. Eggs are a source of protein with prices that are quite affordable compared to other animal protein sources, such as meat and milk. So people prefer eggs as a fulfillment of their daily protein needs compared to meat and milk. During the Covid-19 pandemic, many impromptu egg sellers emerged in the community, as one of the effects of the drop in egg prices on the market. However, these impromptu egg sellers often disregard the quality of the eggs they sell. This will certainly have detrimental and harmful consequences to consumer health. For this reason, socialization to the public about how to differentiate egg quality and how to storing eggs in a good way is important, so that people can choose and get good quality eggs in a longer period of time. The benefit of this socialization is that participants become more careful in choosing the eggs they buy and knowing how to store eggs properly so that the shelf life of the eggs they buy can last longer.Keywords: nutritional intake, eggs quality, eggs storage


1993 ◽  
Vol 83 (3) ◽  
pp. 421-429 ◽  
Author(s):  
Philip C. Stevenson ◽  
Wally M. Blaney ◽  
Monique J. S. Simmonds ◽  
John A. Wightman

AbstractFourteen wild species of Arachis (Leguminosae) were investigated under field and laboratory conditions to evaluate their effect on the survival and development of the larvae of Spodoptera litura (Fabricius). All of the species studied were observed to be resistant compared to the susceptible control, Arachis hypogaea (genotype TMV2). Overall, the mortality and development of larvae recorded in the field were similar to those recorded for larvae on excised leaves of the same species in the laboratory. When neonate larvae were exposed to excised leaves of A. batizogaea, A. kemph-mercadoi, A. appresipila, A. paraguariensis, A. stenophyla and A. villosa mortality was greater than 94% compared to less than 20% on TMV2. Third stadium larvae lost weight when exposed to both field plants and excised leaves of eight of the wild species, whereas larvae feeding on TMV2 gained weight. When third stadium larvae were fed pulped leaves they gained more weight than when exposed to intact leaves, except in the case of A. chacoensis and Arachis spp. 30007. A penetrometer was used to determine the relative toughness of the leaves. The leaves of most of the wild species were shown to require a greater biting effort for feeding than the leaves of TMV2. There was a negative correlation between toughness of whole leaves and larval development. Observations of larval behaviour indicated that, overall, larvae were deterred from feeding on the leaves of the wild species. Diets containing the chemical extracts of dried leaves of A. kemph-mercadoi, A. paraguariensis, A. appresipila, A. chacoensis, A. glabrata and A. pseudovillosa resulted in low larval weight gain. The physical quality of the leaves and foliar chemicals are implicated as being responsible for the observed resistance. The implications and potential applications of these results are discussed.


2014 ◽  
Vol 12 (3) ◽  
pp. 629-634 ◽  
Author(s):  
Tomás Chalde ◽  
Mariano Elisio ◽  
Leandro A. Miranda

The aim of this work was to assess the quality of pejerrey eggs and larvae throughout its spawning season. Fertilized eggs were taken on September, October, November, and December from a captive broodstock. The egg diameter, yolk diameter, and oil droplets area decreased along the spawning season, with higher values in September. Fertilization and hatching rates decreased throughout this period, with highest values in September (88.0%; 55.2%) and the lowest values on December (43.0%; 25.2%). The larvae hatched from eggs obtained on October were the heaviest and longest (1.57 mg; 8.24 mm). The survival rate at 30 days post hatching (dph) was similar in larvae from September and October eggs (66.1%; 62.9%) with a sharp decrease in larvae from November and December eggs (22.4%; 23.3%). Furthermore, the highest body weight (15.1 mg) and total length (15.25 mm) at 30 dph were obtained in larvae from October eggs. The results obtained showed that overall eggs quality was better at the beginning of the spawning period, influencing the larvae performance.


2017 ◽  
Vol 12 (3) ◽  
pp. 124
Author(s):  
Hasrianti Silondae ◽  
Amaliah Ulpah

<p>The main problem of chicken egg is its weaknesses, such as perishable, therefore it has a short storage life. Some natural preservative among others tea leaf can maintain the quality of egg. This study aimed to determine the concentration of tea solution to maintain the quality of egg. The materials used in this research were eggs, local tea (bandulan brand), and hot water. Eggs are soaked for 2 days with concentration of tea solution consists of 0%, 10%, 20%, 30%, 40%, and 50% and stored for 21 days. Parameters observed were egg weight shrinkage, yolk index, albumen index and pH. The experiment designed by Completely Randomized Design (CRD) with 6 treatments and 4 replications. Parameters observed were egg weight shrinkage, yolk index, eggwhite index and pH. The data were analyzed by ANOVA continued by Duncan’s Multiple Range Test (DMRT). The research results showed that the decline in interior quality of eggs was higher in the control treatment (without the tea solution). It is found that there is significant different between the two treatment of 10% and 50% with parameter of albumen indeks.</p><p> </p><p><strong>PENINGKATAN KUALITAS TELUR AYAM RAS DENGAN PERENDAMAN DALAM LARUTAN TEH</strong></p><p>Masalah utama dari telur ayam adalah sifatnya yang mudah rusak, sehingga waktu simpannya relatif pendek. Beberapa bahan pengawet alami diantaranya daun teh dapat mempertahankan kualitas telur ayam ras. Penelitian ini bertujuan untuk mempelajari pengaruh perendaman telur dalam larutan teh konsumsi terhadap kualitas interior telur ayam ras. Bahan yang digunakan dalam penelitian ini yaitu telur ayam ras, teh bandulan dan air panas. Telur direndam selama 2 hari dengan konsentrasi larutan teh terdiri dari 0%, 10%, 20%, 30%, 40%, dan 50% dan disimpan selama 21 hari. Pengamatan dilakukan terhadap penyusutan berat telur, indeks kuning telur, indeks putih telur, dan pH telur. Rancangan penelitian yang digunakan dalam penelitian adalah Rancangan Acak Lengkap (RAL) dan perbedaan antar perlakuan diuji dengan uji<em> Duncan’s Multiple Range Test</em> (DMRT). Hasil penelitian menunjukkan bahwa penyusutan berat telur lebih tinggi pada perlakuan kontrol (tanpa larutan teh). Diketahui bahwa terdapat perbedaan nyata antar perlakuan konsentrasi larutan teh 10% dan 50% dengan parameter indeks putih telur.<strong> </strong></p>


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