Research and education for the development of integrated crop-livestock-fish farming systems in the tropics

1990 ◽  
Vol 32 (3) ◽  
pp. 293-294
Author(s):  
R.H. Fawcett
Keyword(s):  
Farming Systems ◽  
Fish Farming ◽  
Research And Education ◽  
The Tropics

Lunar Cycle Influences Production of Tilapia (Oreochromis spp) Eggs in an Intensive Outdoor Production System in the Tropics

2022 ◽  
pp. 074873042110694
Author(s):  
Miguel F. Perea ◽  
Daniel A. Perdomo ◽  
Zenaida A. Corredor ◽  
Mario González ◽  
Hugo Hernandez-Fonseca ◽  
...  
Keyword(s):  
Production System ◽  
Full Moon ◽  
Farming Systems ◽  
Fish Farming ◽  
Reproductive Activity ◽  
Lunar Cycle ◽  
Natural Environments ◽  
The Moon ◽  
Commercial Fish ◽  
The Tropics

A robust body of evidence has demonstrated that the lunar cycle plays an important role in the reproduction of fish living in natural environments. However, little is known about the influence of the moon on tilapia reproductive activity in intensive fish farming systems. This study aims to evaluate the influence of the lunar cycle on the reproductive performance of tilapias in an intensive outdoor tropical production system in Latin America. Records of two tilapia strains (Nile tilapia [ Oreochromis niloticus; n = 75] and Red tilapia [ Oreochromis spp.; n = 1335]) reared in concrete tanks in a commercial fish farm were analyzed. Over a 3-year period, 60,136 captures were made in intervals of 12 to 14 days and 6,600 females were manually spawned. The number of females spawned and the volume of eggs collected from each tank ( n = 9) were recorded. Data was analyzed by the general linear model and means were compared by least squares means method. A very slight or no variation was observed when the lunar cycle was split into two halves (crescent and waning). The proportions of females spawned and the volume of eggs per spawned female and per female in the tank varied considerably across the eight periods of the lunar cycle, with greater values in the waning than in the crescent phase. A significantly greater proportion of tilapia spawned and yielded more eggs around the full moon than around the new moon and remaining days of the lunar cycle. The moon cycle affected the reproductive activity of tilapia, which were more reproductively active around the full moon and most of the waning phase.

Effects of accession and cutting frequency on the rumen degradability of nitrogen in the foliage of sesbania sesban var. nubica

1993 ◽  
Vol 1993 ◽  
pp. 205-205
Author(s):  
K. Otieno ◽  
M.J. Bryant ◽  
J.F.M. Onim
Keyword(s):  
Farming Systems ◽  
Soil Profiles ◽  
Sesbania Sesban ◽  
Tree Legume ◽  
Smallholder Farming ◽  
Fuel Wood ◽  
Cutting Frequency ◽  
Ruminant Diets ◽  
Ruminant Animals ◽  
The Tropics

Sesbania sesban var. nubica is a tropical tree legume. Tree legumes have a number of uses which make them of interest to smallholder farming systems in the tropics. When incorporated into land use systems such as alley farming they provide a source of fuel wood for the household and forage for ruminant animals, as well as providing shade and pumping mineral nutrients from lower soil profiles to the surface where they can be used by more shallow-rooting companion crops. Sesbanias have considerable potential as providers of forage. The leaves are generally considered to be excellent sources of protein to supplement protein-deficient roughages such as straws and stovas in ruminant diets. Palatability of Sesbania foliage does not seem to be a problem and phenolic concentrations are low.

Impact of milk fish farming in the tropics on potentially pathogenic vibrios

2013 ◽  
Vol 77 (1-2) ◽  
pp. 325-332 ◽  
Author(s):  
W.T. Reichardt ◽  
J.M. Reyes ◽  
M.J. Pueblos ◽  
A.O. Lluisma
Keyword(s):  
Fish Farming ◽  
Pathogenic Vibrios ◽  
The Tropics

scholarly journals Farming Systems in the Tropics

1973 ◽  
Vol 139 (1) ◽  
pp. 149 ◽  
Author(s):  
J. T. Coppock ◽  
Hans Ruthenberg
Keyword(s):  
Farming Systems ◽  
The Tropics

scholarly journals Antimicrobials use and resistance on integrated poultry-fish farming systems in the Ayeyarwady Delta of Myanmar

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Justine S. Gibson ◽  
Honey Wai ◽  
Shwe Sin May Lwin Oo ◽  
Ei Moh Moh Hmwe ◽  
Soe Soe Wai ◽  
...  
Keyword(s):  
Antimicrobial Resistance ◽  
Production Systems ◽  
Farming Systems ◽  
Fish Farming ◽  
Fish Ponds ◽  
Fish Farms ◽  
E Coli ◽  
Livestock Species ◽  
Poultry Farms ◽  
Livestock Health

Abstract Antimicrobials are used to support livestock health and productivity, but might pose a risk for the development of antimicrobial resistance; in particular, when multiple livestock species are raised together in production systems. On integrated chicken-fish farms, chickens are raised over fish ponds and poultry faeces is excreted into the ponds. We investigated antimicrobial usage and the antimicrobial susceptibility of Escherichia coli cultured from poultry faeces on 301 integrated farms in Ayeyarwady Delta of Myanmar. Antimicrobials were used by 92.4% of farmers for chickens, but they were not applied to fish. The most common antimicrobials used were Octamix (amoxicillin and colistin sulfate) on 28.4%, enrofloxacin on 21.0% and amoxicillin on 16% of farms. Overall, 83.1% (152/183) of the E. coli were resistant to at least one antimicrobial. The highest level of resistance was to amoxicillin (54.6%), tetracycline (39.9%), sulfamethoxazole/trimethoprim (35.5%) and enrofloxacin (34.4%). Multidrug resistance was identified in 42.4% of isolates. In general, we found similar levels of antimicrobial resistance in non-users of antimicrobials as in users of antimicrobials for more commonly applied antimicrobials. Overall, antimicrobial resistance was lower in chickens on these integrated farms in Myanmar, compared to poultry farms in other countries of South East and East Asia.

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