Environmentally Preferable Smart Chemicals Improve Production, Performance

2020 ◽  
Vol 72 (09) ◽  
pp. 79-80
Author(s):  
Judy Feder
2008 ◽  
Author(s):  
Loris Tealdi ◽  
Maurizio Rampoldi ◽  
Henri Malonga ◽  
Leone Riccobon ◽  
Fabrice Okassa ◽  
...  

2013 ◽  
Vol 336-338 ◽  
pp. 1275-1280
Author(s):  
Guo Hui Chen ◽  
Yan Ling Guo ◽  
Fang Qu

In present, plenty of solar greenhouse in northern China can't play maximum efficicency because of have no environmental control system. Through greenhouse construction for many years, a new practical HMG-2 type solar greenhouse with environmental automatic control system has been developped. This control system has "offline" and "online" two kind of working modes. The paper expounds the key technology adopted by the control system, which can greatly improve production performance of solar greenhouse. This environmental control system has many advantages such as low cost and easily to implement. It can meet the demand of users and has popularization value.


2020 ◽  
Vol 23 (16) ◽  
Author(s):  
AL-Enzy AFM ◽  
Zaeid J. M. Saed ◽  
Ahmed S. Naser ◽  
Th. T. Mohammed ◽  
S. M. Abdulateef ◽  
...  

2011 ◽  
Vol 10 (6) ◽  
pp. 448-454 ◽  
Author(s):  
Afaf Y. Al-Nass ◽  
Sameer F. Al-Zenk ◽  
Abdulameer E. Al-Saff ◽  
Faten K. Abdulla ◽  
Mariam E. Al-Baho ◽  
...  

2021 ◽  
Vol 10 (1) ◽  
pp. 60-68
Author(s):  
Andri Hendriana ◽  
Wiyoto ◽  
Wida Lesmanawati

ABSTRACTThe research was conducted to determine the most optimal concentration of molasses in maintaining the quality of water and increasing the production performance of vannamei shrimp. The study used 4 different molasses concentration treatments with 4 replications, consisted of (A) 50% molasses concentration of the total feed, (B) 100% of the total feed, (C) 150% of the total feed, and (K) 0% of the total feed (control). Molasses was given every day for 40 days by mixing it directly into the test shrimp’s rearing media (PL 12). Throughout the rearing, the treatment of various concentrations of molasses did not affect temperature, DO, pH and water salinity parameters, but had a tendency to improve water quality by reducing TAN and nitrite values. Molasses can also significantly improve production performance. The best concentration of molasses is 150% of the total feed (treatment C), which resulted in a biomass weight of 293.05 ± 5.57 g with an LPS value of 6,08 ± 0,03%/day and an FCR of 2,23 ± 0,05. ABSTRAKPenelitian dilakukan untuk mengetahui konsentrasi molase yang paling optimal dalam mempertahankan kualitas air pemeliharaan dan meningkatkan kinerja produksi udang vaname. Penelitian terdiri dari 4 perlakuan konsentrasi molase berbeda dengan 4 ulangan yaitu (A) konsentrasi molase 50% dari jumlah jumlah pakan, (B) 100% jumlah pakan, (C) 150% jumlah pakan, dan (K) 0% jumlah pakan (kontrol). Molase diberikan setiap hari selama 40 hari dengan cara dicampurkan langsung ke media pemeliharaan udang uji (PL 12). Perlakuan pemberian molase berbagai konsentrasi tidak mempengaruhi parameter suhu, DO, pH dan salinitas air selama pemeliharaan udang namun memiliki kecenderungan memperbaiki kualitas air dengan menurunkan nilai TAN dan nitrit. Pemberian molase secara nyata mampu meningkatkan kinerja produksi. Pada perlakuan tanpa pemberian molase (Kontrol) dihasilkan bobot biomasa sebesar 149,36±20,36 g dengan nilai LPS sebesar 4,87±0,19 dan FCR sebesar 3,40±0,55.  Konsentrasi molase terbaik yaitu 150% dari jumlah pakan (perlakuan C) menghasilkan bobot biomasa sebesar 293,05±5,57 g dengan nilai LPS sebesar 6,08±0,03% dan FCR sebesar 2,23±0,05. Kata kunci : kinerja produksi, kualitas air, molase, udang vaname Litopeneus vannamei


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