SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Pacheco,Paulo Santana; Restle,João; Alves Filho,Dari Celestino; Brondani,Ivan Luiz; Pascoal,Leonir Luiz; Kuss,Fernando; Menezes,Luís Fernando Glasenapp de; Neiva,José Neuman Miranda.

The objective of the experiment was to study the carcass physical composition and meat qualitative characteristics of different categories of Charolais cattle, feedlot finished. Nine steers (ST), ten heifers (HE), with average age of 20 months, and ten cull cows (CO) with average age of 87 months, taken from the same herd, were used. Diet contained 13% of crude protein for ST and HE and 10% for CO, with roughage:concentrate relation of 50:50, on a dry matter basis. The animals of the three categories were slaughtered with similar degree of finishing, with average subcutaneous fat thickness of 3.8 mm. HE showed carcasses with greater pistolcut percentage (52.8%) than ST (51.0%) and CO (51.4%). The carcass physical composition was similar among the...

Effect of chronic exposure to ammonia on growth, food utilisation and metabolism of the European sea bass (Dicentrarchus labrax)

Palavras-chave: Compensatory growth; Feedlot; Intramuscular fat; Primary cuts; Sexual condition.

Ano: 2011

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100043

Effect of diet dilution ratio at early age on growth performance, carcass characteristics and hepatic lipogenesis of Pekin ducks

Dosdat, Antoine; Person, Jeannine; Coves, Denis; Dutto, Gilbert; Gasset, Eric; Le Roux, Annick; Lemarie, Gilles.

The chronic effects of exposing sea bass (average initial weight 100 g) to ammonia in water at 22 degreesC were first evaluated over a 61-day period (period 1, P1) during which nine different groups were submitted to nine ambient ammonia levels ranging from 0.014 to 0.493 mg 1(-1) NH3-N (0.53-16.11 mg 1(-1) total ammonia nitrogen (TA-N)) and fed using self-feeders. At the end of P1, the fish were starved for 10 days (P2). Their recovery capacity was tested over 43 days (P3) after which the exogenous ammonia supply was stopped in all treatments and the fish were allowed to feed. After 20 days of exposure a highly significant effect of ammonia was evident from the decrease in feeding activity, voluntary feed intake (VFI) and specific growth rate (SGR), and...

Tipo: Text

Palavras-chave: Sea bass; Self feeding; Compensatory growth; Chronic toxicity; Ammonia.

Ano: 2003

URL: http://archimer.ifremer.fr/doc/2003/publication-595.pdf

Rev. Bras. Ciênc. Avic.

Wu,L; Guo,X; Fang,Y.

This study was conducted to test the hypothesis that proper diet dilution ratio at early age might improve feed conversion ratio (FCR) and reduce body fat deposition of meat-type ducks. One hundred and fifty 1-day-old male and female White Pekin ducks (44.5±1.0 g) were randomly assigned into three treatments with five replicates (pens) of 10 birds each, respectively representing the experimental diets with 0 (control), 40 or 60% rice hulls inclusion in the basal diet between 8 and 14 d of age. The basal diet was fed before and after this period. The results showed that diluting the diet with 40% rice hulls increased (p < 0.05) feed intake, decreased adjusted (excluding rice hulls) feed:gain and body weight gain of ducks during the diet-dilution period;...

Effect of different feed restriction regimens on lamb performance and carcass traits

Palavras-chave: Carcass composition; Compensatory growth; Diet dilution; Hepatic lipogenic enzyme activity; Pekin ducks.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000100008

Abouheif,Mohamed; Al-Sornokh,Hussain; Swelum,Ayman; Yaqoob,Hilal; Al-Owaimer,Abdullah.

Fifty Najdi ram lambs weighing an average of 38.1±0.5 kg were utilized in this study to determine the effects of feed restriction level with or without subsequent realimentation on lamb performance and carcass composition. Lambs were allotted randomly and equally into five groups. The groups were fed a control diet ad libitum; two groups fed 0.90 and 0.80 of ad libitum intake throughout the eight-week period of the trial (R), and two groups fed 0.90 and 0.80 of ad libitum intake for a six-week period followed by two weeks of realimentation (RR). All lambs were slaughtered after eight weeks of experimentation. Average daily gain (ADG) for the 0.90 and 0.80 ad libitum groups decreased by 7.6 and 26.9% during restriction, whereas the lambs during...

Effect of feed restriction on organs and intestinal mucosa of growing rabbits

Palavras-chave: Body composition; Compensatory growth; Limit-feeding; Sheep.

Ano: 2015

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000300076

Oliveira,Maria Cristina de; Silva,Diones Montes da; Dias,Daisa Mirelle Borges.

This experiment was carried out to evaluate the effect of feed restriction on internal organs with respect to their weight and size, and the development of the intestinal mucosa of growing rabbits. Sixty 33-day-old New Zealand White rabbits were used in a randomized block with four treatments and five blocks. The treatments consisted of ad libitum feeding; feed restriction from 33 to 40 days of age; feed restriction from 54 to 61 days of age; and feed restriction from 33 to 40 and from 54 to 61 days of age. There was no effect of feed restriction on weight, length and width of internal organs, except for heart weight, which decreased when feeding was restricted from 54-61 days and from 33-40 and 54-61 days of age. There was no effect of feed restriction at...

Tipo: Info:eu-repo/semantics/other

Palavras-chave: Animal nutrition; Compensatory growth; Digestible system in rabbits.

Ano: 2013

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000700010

Effect of feed restriction on performance of growing rabbits

Oliveira,Maria Cristina de; Silva,Rossane Pereira da; Araújo,Liomar Sousa; Silva,Valdevino Rodrigues da; Bento,Elis Aparecido; Silva,Diones Montes da.

This experiment assessed the effect of feed restriction in rabbits on performance and economic viability of the activity. Sixty New Zealand White rabbits, weaned at 33 days and slaughtered at 81 days of age, were used. The design was of randomized blocks with four treatments and five replications. The treatments were, as follows: 1 - free feeding, 2 - feed restriction from 35 to 40 days of age (50 g/d/rabbit), 3 - feed restriction from 54 to 61 days of age (90 g/d/rabbit) and 4 - feed restriction from 33 to 40 days (50 g/d/rabbit) and from 54 to 61 days of age (90 g/d/rabbit). There was no difference in the performance and carcass parameters, indicating that there was compensatory growth in the rabbits that suffered feed restriction. The best gross margin...

Effect of past nutritional history and fasting on feed intake and growth in rainbow trout Oncorhynchus mykiss

Palavras-chave: Animal nutrition; Compensatory growth; Economic viability.

Ano: 2012

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600021

Effect of water restriction and sodium levels in the drinking water on broiler performance during the first week of life

Boujard, Thierry; Burel, Christine; Medale, Francoise; Haylor, Graham; Moisan, Annick.

Groups of juvenile rainbow trout were fed to satiation for 10 days after 1, 11 and 21 days of feed deprivation. These fish (initial body weight =20 +/- 2 g) were previously fed at different feeding levels (0.5 or 1.5% initial body weight, to satiation) with a high (20.4 kJ . g(-1)) or a low (16.2 kJ.g(-1)) digestible energy diet content for 34 days. It is shown that past nutritional history affected growth performance: duration of feed deprivation has a major effect on intake and feed conversion efficiency; previous feeding level has an effect on intake; dietary energy content affected feed conversion efficiency. In addition, an attempt was made to identify some of the metabolic parameters that could be involved in the increase in growth performance during...

Tipo: Text

Palavras-chave: Feed efficiency; Appetite; Past nutritional history; Compensatory growth; Aquaculture.

Ano: 2000

URL: http://archimer.ifremer.fr/doc/2000/publication-1399.pdf

Castro,Emilio Eduardo Cura; Penz Júnior,Antônio Mário; Ribeiro,Andréa Machado Leal; Sbrissia,André Fischer.

A trial was carried out to evaluate the performance of female ROSS 308 broilers, from 1 to 21 days of age, submitted to 20% of water restriction (WR) or ad libitum water and four different sodium levels by adding NaCl to the drinking water (0, 150, 300, or 450 ppm) from 1 to 7 days of age. A control group, with four replications (rep), housed one day before the beginning of the experiment, was used as reference for WR calculation. Two commercial diets where fed from 1 to 7 days and from 8 to 21 days to all birds. The chicks were raised in battery cages. A randomized complete design, in a 2 × 4 factorial arrangement, with four replications/treatment and 14 birds/replicate, was applied. Feed intake (FI), weight gain (WG) and feed conversion ratio (FCR) in...

Food deprivation does not affect growth performance of juvenile tambacu

Palavras-chave: Broilers; Compensatory growth; Minerals; Water.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009001100014

Acta Amazonica

PAZ,Arlan de Lima; PASTRANA,Yugo Moraes; BRANDÃO,Lian Valente.

ABSTRACT The objective of this study was to evaluate the efficiency of food deprivation on the growth performance of the commercially important hybrid fish tambacu (Piaractus mesopotamicus male × Colossoma macropomum female). For this, 171 juveniles of average length 8 cm and 11.4 g body mass were distributed in nine tanks, and allocated to three treatments: the fish were fed every day (control), fed for six days followed by one day of food deprivation (6F/1D) and fed for five days followed by two days of food deprivation (5F/2D). After 77 days, all animals achieved similar growth rates. Only animals submitted to two days of food deprivation presented hyperphagia. There was a reduction in total feed consumption of 3.8% and 10.8% for the 6F/1D and 5F/2D...

Tipo: Info:eu-repo/semantics/report

Palavras-chave: Fish farming; Feeding strategy; Compensatory growth.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000300207

In search for indirect criteria to improve feed utilization efficiency in sea bass (Dicentrarchus labrax) Part II: Heritability of weight loss during feed deprivation and weight gain during re-feeding periods

In search for indirect criteria to improve residual feed intake in sea bass (Dicentrarchus labrax) Part I: Phenotypic relationship between residual feed intake and body weight variations during feed deprivation and re-feeding periods

Grima, Laure; Chatain, Beatrice; Ruelle, Francois; Vergnet, Alain; Launay, Amandine; Mambrini, Muriel; Vandeputte, Marc.

Selective breeding to improve residual feed intake (RFI) in sea bass (Dicentrarchus labrax) is a major goal that would optimize economic gain while minimizing the environmental impact of production. Due to the difficulty in accurately measuring individual feed intake, no selective breeding program has yet been started. In a previous study, we identified a criterion phenotypically related to RFI variations: the loss of weight during feed deprivation, FD. Moreover, an additional composite criterion (CC) integrating both FD and weight gain during subsequent re-feeding (RF) was closely related to RFI, even though the relationship was only close to significance (P=0.06). The aim of the present study was to estimate the heritability of these two traits, in order...

Tipo: Text

Palavras-chave: European sea bass; Dicentrarchus labrax; Feed efficiency; Heritability; Genetic parameters; Residual feed intake; Feed deprivation; Compensatory growth; Selective breeding.

Ano: 2010

URL: http://archimer.ifremer.fr/doc/00004/11529/8213.pdf

Performance of juvenile turbot (Scophthalmus maximus) fed varying dietary L-carnitine levels at different stocking densities

Grima, Laure; Vandeputte, Marc; Ruelle, Francois; Vergnet, Alain; Mambrini, Muriel; Chatain, Beatrice.

No commercial breeding programs have yet started to improve feed utilization efficiency in fish, mainly because of the difficulty in accurately measuring individual feed intake in fish reared in groups. Our general goal is to propose indirect criteria to be used for breeding of commercial lines. In a previous study undertaken with rainbow trout clones, a genetic correlation was detected between residual feed intake (RFI), and body weight variation during successive periods of feed deprivation (FD) and re-feeding (RF). To assess the pertinence of such indirect criteria for future breeding programs, we set up a large experiment using sea bass (Dicentrachus labrax), a recently domesticated species with broad genetic diversity. The objectives of the present...

Tipo: Text

Palavras-chave: European sea bass; Dicentrachus labrax; Feed efficiency; Residual feed intake; Feed deprivation; Compensatory growth; Selective breeding.

Ano: 2010

URL: http://archimer.ifremer.fr/doc/00002/11297/7838.pdf

Scientia Agricola

Gonçalves,José Fernando Magalhães; Turini,Bruno Graziano da Silva; Ozório,Rodrigo Otávio de Almeida.

Commercial farming of turbot (Scophthalmus maximus) at high stocking densities may lead to growth depression and increasing production costs. Moreover, the high levels of accumulated waste in an intensive system may cause rapid deterioration of water quality, which may undermine the production. L-carnitine is known as a growth-enhancer which shows promise as mitigator of crowding effects. The effects of stocking densities (4, 8, 11 and 14 kg m²) on growth performance, feed utilization and body composition were evaluated during 75 days on turbot (75.6 ± 2.8 g) fed two dietary L-carnitine levels (40 or 240 mg kg¹). At the end of the feeding trial, total ammonia excretion (TAN) was measured postprandially for 24h. Specific growth rate and weight gain...

Physiological mechanisms underlying a trade-off between growth rate and tolerance of feed deprivation in the European sea bass (Dicentrarchus labrax)

Palavras-chave: Compensatory growth; Feed additives; Stress; Husbandry; Nitrogen excretion.

Ano: 2010

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000200004

Sex-specific compensatory growth in food-deprived Nile tilapia

Dupont-prinet, A.; Chatain, Beatrice; Grima, L.; Vandeputte, Marc; Claireaux, Guy; Mckenzie, David.

The specific growth rate (SGR) of a cohort of 2000 tagged juvenile European sea bass was measured in a common tank, during two sequential cycles comprising three-weeks feed deprivation followed by three-weeks ad libitum re-feeding. After correction for initial size at age as fork length, there was a direct correlation between negative SGR (rate of mass loss) during feed deprivation and positive SGR (rate of compensatory growth) during re-feeding (Spearman rank correlation R=0.388, P=0.000002). Following a period of rearing under standard culture conditions, individuals representing 'high growth' phenotypes (GP) and 'high tolerance of feed deprivation' phenotypes (DP) were selected from either end of the SGR spectrum. Static and swimming respirometry could...

Tipo: Text

Palavras-chave: Aerobic scope; Compensatory growth; Specific dynamic action; Specific growth rate; Standard metabolic rate.

Ano: 2010

URL: http://archimer.ifremer.fr/doc/00002/11283/8517.pdf

BJMBR

Barreto,R.E.; Moreira,P.S.A.; Carvalho,R.F..

Female Nile tilapia incubate fertilized eggs in their mouth until they are released as alevins. Consequently, the female may not eat during this period. Thus, it would be expected that female Nile tilapia are more adapted to recovering from fasting than males, which do not display this behavior. To test this hypothesis we conducted an experiment with two groups of fish consisting of 7 males and 7 females each, with one fish per aquarium. The experiment was divided into three phases involving adjustment of the animals to experimental aquaria (0-15th day), fasting (16th-27th day), and refeeding (27th-42nd day). Compensatory growth performance was assessed by specific growth rate, weight, food conversion efficiency and food intake. Food conversion efficiency...