000			02635nab a2200277 i 4500
003			BR-BrBNA
005			20250401202828.0
008			250401b2020 bl.ar|pooa||| 00| 0 eng |
040			_aBR-BrBNA _beng
072			_aM12 _b8310
100			_aPontes, Cibele Soares
100			_aArruda, Maria de Fátima
100			_aSantana, Vinícius Gabriel da Silva
100			_aSantos, Daniele Bezerra dos
245			_aAnimal performance and welfare of giant freshwater prawn (Macrobrachium rosenbergii) subjected to feed restriction
500			_aPublicação on-line; 45 ref.; 3 illus; Sumaries (En)
520			_a ABSTRACT - Behavior activities of giant freshwater prawn Macrobrachium rosenbergii juvenile, their performance, and acquired lesions when under temporary feed restrictions were analyzed. Five animals/experimental units (10 prawns/m2 ) were employed for treatments DFL – daily feed supply in the light phase; DFD – daily feed supply in the dark phase; AFL – alternating feed supply in the light phase; and AFD – alternating feed supply in the dark phase, for a 24-hour period, with four replications each. Prawns were fed a pellet diet, twice a day, with 10% of their biomass/day. Specimens were monitored during 60 consecutive days, with behavior recording daily and weighed every 10 days, with assessment of lesions and/or amputated limbs at the end of the experimental period. Types of behavior comprised exploring, grooming, inactivity, crawling, swimming, excavation, burrowing, agonism, and feed ingestion by scan sampling, with instantaneous registration every 60 s, in 15-min windows, before and after feed, in light and dark phases. Feed restricted in alternate days during light and dark phases did not interfere in growth or survival of the specimens, with increase in apparent feed intake and less feed conversion ratio and specific growth rate. Agonistic behavior was higher in specimens with feed restrictions, with an increase in the number of lesions and amputations. The above demonstrates welfare decrease in farmed M. rosenbergii and depreciation in the quality of the final product. Keywords: applied ethology, Malaysian giant prawn, prawn culture
650			_aCAMARÃO
650			_aRAÇÃO
650			_aCRESCIMENTO
650			_aCARCINICULTURA
773	0		_03545 _9317600 _dViçosa-MG Sociedade Brasileira de Zootecnia 1997 _o2024-4310 _tRevista Brasileira de Zootecnia (Brazil) _x1516-3598 _gv. 49 p. 1-11; (2020) _wBR2025000495
856			_uhttps://www.scielo.br/j/rbz/a/n77pcJRFQ7tRqnVgHWmN7mv/?format=pdf&lang=en
942			_cANA
999			_c330787 _d330787