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| Registros recuperados: 16 | |
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| de Faria,D.R.G.; Santana,J.S.; Menani,J.V.; de Paula,P.M.. |
| Besides other physiological functions, adenosine-5'-triphosphate (ATP) is also a neurotransmitter that acts on purinergic receptors. In spite of the presence of purinergic receptors in forebrain areas involved with fluid-electrolyte balance, the effect of ATP on water intake has not been investigated. Therefore, we studied the effects of intracerebroventricular (icv) injections of ATP (100, 200 and 300 nmol/µL) alone or combined with DPCPX or PPADS (P1 and P2 purinergic antagonists, respectively, 25 nmol/µL) on water intake induced by water deprivation. In addition, the effect of icv ATP was also tested on water intake induced by intragastric load of 12% NaCl (2 mL/rat), acute treatment with the diuretic/natriuretic furosemide (20 mg/kg), icv angiotensin... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water intake; ATP icv; Purinergic receptors; Angiotensin II; Carbachol; Ingestive behavior. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000100015 |
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| Araujo,Rafael Canonenco de; Pires,Alexandre Vaz; Susin,Ivanete; Urano,Fumi Shibata; Mendes,Clayton Quirino; Rodrigues,Gustavo Henrique; Packer,Irineu Umberto. |
| Soybean hulls (SH) are an alternative fiber source that may be used to maintain neutral detergent fiber (NDF) concentration while increasing the energy concentration of ruminant diets. The objective of this experiment was to determine the effects of replacing coastcross (Cynodon sp.) hay NDF by SH NDF on the apparent digestibility of nutrients and nitrogen balance of Santa Inês ram lambs. Twenty-four animals (42.5 ± 3.6 kg of body weight and six months old) were placed in metabolism crates and assigned in a randomized complete block design defined by body weight (BW). Experimental diets provided a similar concentration of NDF (52%) and crude protein (15%). Hay NDF from a 70% roughage-based diet was replaced with SH NDF by 33%, 67%, and 100%, resulting in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: NDF; Hair sheep; Nitrogen balance; Santa Inês; Water intake. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000600003 |
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| De-Castro-e-Silva,E.J.; Castro,L.; Luz,C.P.; Ferreira,H.; Lima,A.K.S.; Souza,F.S.F.; Maldonado,I.; Macêdo,D.F.; Ferreira,M.G.; Bandeira,I.P.V.; Amor,A.L.M.; Carvalho,F.L.Q.; Rocha Jr.,M.A.; Fregoneze,J.B.. |
| We have demonstrated that acute third ventricle injections of lead acetate (PbAc) exert a powerful antidipsogenic effect and induce a significant increase in renal sodium excretion. In the present study we confirm the antidipsogenic effect of lead and demonstrate that central administration of this metal, in minute amounts, significantly reduces salt intake both during dehydration and after central angiotensinergic stimulation. Adult male Wistar rats had the third ventricle cannulated seven days before the experiments. During this period they had free access to distilled water and hypertonic saline solution (1.5%). After a 24-h period of fluid deprivation, experimental animals received third ventricle injections of PbAc (0.3, N = 8 and 3.0 nmol/rat, N =... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Lead; Angiotensin II; Water intake; Sodium intake; Rats. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999001000011 |
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| Cavalcante-Lima,H.R.; Badauê-Passos Jr.,D.; de-Lucca Jr.,W.; Lima,H.R.C.; Costa-e-Sousa,R.H.; Olivares,E.L.; Cedraz-Mercez,P.L.; Reis,R.O.; Medeiros,M.A.; Côrtes,W.S.; Reis,L.C.. |
| We determined if the dorsal raphe nucleus (DRN) exerts tonic control of basal and stimulated sodium and water intake. Male Wistar rats weighing 300-350 g were microinjected with phosphate buffer (PB-DRN, N = 11) or 1 µg/0.2 µl, in a single dose, ibotenic acid (IBO-DRN, N = 9 to 10) through a guide cannula into the DRN and were observed for 21 days in order to measure basal sodium appetite and water intake and in the following situations: furosemide-induced sodium depletion (20 mg/kg, sc, 24 h before the experiment) and a low dose of dietary captopril (1 mg/g chow). From the 6th day after ibotenic acid injection IBO-DRN rats showed an increase in sodium appetite (12.0 ± 2.3 to 22.3 ± 4.6 ml 0.3 M NaCl intake) whereas PB-DRN did not exceed 2 ml (P <... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sodium appetite; Water intake; Dorsal raphe nucleus; Serotonergic system; Ibotenic acid. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001100015 |
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| Olivares,E.L.; Costa-e-Sousa,R.H.; Cavalcante-Lima,H.R.; Lima,H.R.C.; Cedraz-Mercez,P.L.; Reis,L.C.. |
| The present study determined the effect of an electrolytic lesion of the dorsal raphe nucleus (DRN) on water intake and sodium appetite. Male Wistar rats weighing 290-320 g with a lesion of the DRN (L-DRN), performed two days before experiments and confirmed by histology at the end of the experiments, presented increased sensitivity to the dehydration induced by fluid deprivation. The cumulative water intake of L-DRN rats reached 23.3 ± 1.9 ml (a 79% increase, N = 9) while sham-lesioned rats (SL-DRN) did not exceed 13.0 ± 1.0 ml (N = 11, P < 0.0001) after 5 h. The L-DRN rats treated with isoproterenol (300 µg kg-1 ml-1, sc) exhibited an increase in water intake that persisted throughout the experimental period (L-DRN, 15.7 ± 1.47 ml, N = 9 vs SL-DRN,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sodium appetite; Water intake; Dorsal raphe nucleus; Serotonergic system; Electrolytic lesion; Rats. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001200013 |
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| Saad,W.A.; Camargo,L.A.A.; Saad,R.; Pereira,A.F.; Simões,S.. |
| The drinking behavior responses to centrally administered NG-nitro-L-arginine methyl ester (L-NAME; 10, 20 or 40 µg/µl), an inhibitor of nitric oxide synthase, were studied in satiated rats, with cannulae stereotaxically implanted into the lateral ventricle (LV) and subfornical organ (SFO). Water intake increased in all animals after angiotensin II (ANG II) injection into the LV, with values of 14.2 ± 1.4 ml/h. After injection of L-NAME at doses of 10, 20 or 40 µg/µl into the SFO before injection of ANG II (12 ng/µl) into the LV, water intake decreased progressively and reached basal levels after treatment with 0.15 M NaCl and with the highest dose of L-NAME (i.e., 40 µg). The water intake obtained after 40 µg/µl L-NAME was 0.8 ± 0.01 ml/h. Also, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nitric oxide; Water intake; SFO; Dehydration; CNS. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999001100012 |
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| Castro,L.; Varjão,B.; Silva,I.; Duque,B.; Batista,A.; Santana,R.; Luz,P.; Rocha Junior,M.A.; Fregoneze,J.B.; De Castro-e-Silva,E.. |
| We demonstrate here that acute third ventricle injections of GR 113808, a highly selective 5-HT4 antagonist, decrease water intake induced by a previous salt load while potentiating drinking elicited by hypovolemia induced by previous subcutaneous administration of polyethylene glycol in male Wistar rats (200 ± 20 g). At the dose of 160 nmol/rat, third ventricle injections of GR 113808 induced a significant reduction of water intake in salt-loaded animals after 120 min as compared to salt-loaded animals receiving third ventricle injections of saline (salt load + GR = 3.44 ± 0.41 ml, N = 12; salt load + saline = 5.74 ± 0.40 ml, N = 9). At the dose of 80 nmol/rat, GR 113808 significantly enhanced water intake in hypovolemic animals after 120 min as compared... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: 5-HT4 receptors; Water intake; Hyperosmolarity; Hypovolemia. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000600015 |
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| Ferrari, Isabella Ribeiro; Alcalde, Claudete Regina; Gomes, Ludmila Couto; Molina, Bruna Susan de Labio; Barbosa, Orlando Rus; Santos, Sérgio Mangano de Almeida. |
| This study aimed to evaluate the effect of the addition of calcium salts of long chain fatty acids (CSFA) on the intake and digestibility of diets. Twenty-five female goat kids housed in digestibility cages and subjected to heat stress of 32°C in a climatic chamber, were used. The female kids were distributed in a randomized block design with five treatments: control (without inclusion of CSFA) and 6.25; 12.50; 18.75 and 25.00 g CSFA kg-1 of DM. The inclusion of CSFA in rations did not influence water intake (3.08 L day-1), dry matter (0.66 kg day-1), organic matter (0.62 kg day-1), crude protein (0.12 kg day-1), neutral detergent fiber (0.27 kg day-1) and total carbohydrate (0.47 kg day-1). The results of the digestibility of dry matter (0.66 kg kg-1),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.03.00-1 goats; Environmental factors; Water intake; Protected fat.. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/29910 |
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| Furtado,Dermeval A.; Carvalho Júnior,Sebastião B. de; Souza,Bonifácio B. de; Dantas,Nayanne L. B.; Rodrigues,Ladyanne R.. |
| ABSTRACT The consumption of saline water in semiarid regions is a recurrent situation that can affect the ingestive behavior of small ruminants. This study evaluated the ingestive behavior of Santa Inês sheep maintained in a climatic chamber under two air temperatures -25 °C within the thermal comfort zone (TCZ) and 32 °C above the TCZ - and consuming water with three levels of salinity - 2.0, 4.0, and 8.0 dS m-1. The experimental design was completely randomized in 2 × 3 factorial schemes, comprising two air temperatures and drinking water with three levels of salinity, in six replicates (animals). Regardless of air temperature, the consumption of saline water did not affect feed and water intake by the sheep; however, there was a decrease in feed intake... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climatic chamber; Feed intake; Idleness; Ovis aries; Salinity; Water intake. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000100019 |
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| We have previously demonstrated that acute third ventricle injections of both Pb2+ and Cd2+ impair the dipsogenic response elicited by three different situations: dehydration and central cholinergic or angiotensinergic stimulation. ß-Adrenergic activation is part of the multifactorial integrated systems operating in drinking behavior control in the central nervous system. In the present study acute third ventricle injections of Pb2+ (3, 30 and 300 pmol/rat) or Cd2+ (0.3, 3 and 30 pmol/rat) blocked the dipsogenic response induced by third ventricle injections of isoproterenol (ISO; 160 nmol/rat) in a dose-dependent manner. Normohydrated animals receiving ISO + NaAc (sodium acetate) or saline (controls) displayed a high water intake after 120 min (ISO +... |
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Palavras-chave: Lead; Cadmium; Water intake; Isoproterenol. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000300018 |
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| De-Castro-e-Silva,E.; Luz,C.P.; Sarmento,C.; Nascimento,T.; Gonzalez,V.; Marinho,C.A.; Castro,L.; Oliveira,P.; Santana Jr.,P.; De-Oliveira,I.R.; De-Paula,S.; Lima,A.K.S.; Fregoneze,J.B.. |
| We have previously demonstrated that acute third ventricle injections of both lead and cadmium prevent the dipsogenic response elicited by dehydration or by central injections of dipsogenic agents such as angiotensin II, carbachol and isoproterenol in rats. We have also shown that the antidipsogenic action of cadmium may be due, at least in part, to activation of thirst-inhibitory central serotonergic pathways. In the present paper we show that in Wistar male rats the antidipsogenic effect of both lead acetate (3.0 nmol/rat) and cadmium chloride (3.0 nmol/rat) may be partially dependent on the activation of brain opiatergic pathways since central injections of naloxone (82.5 nmol/rat), a non-selective opioid antagonist, blunt the thirst-inhibiting effect... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Cadmium; Lead; Water intake; Opioids; Rats. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000600013 |
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| Vázquez,Ramón Silva; Meléndez,Lorenzo Antonio Durán; Estrada,Eduardo Santellano; Rodríguez Muela,Carlos; Villalobos,Guillermo Villalobos; Zamora,Gerardo Méndez; Hume,Michael E.. |
| The objective of this research was to evaluate the inclusion of two qualities of Mexican oregano oil (MOO) in broiler diets on broiler weight, feed intake, feed efficiency, average daily gain, and water intake. The qualities were MOO1 (4% thymol, 60% carvacrol) and MOO2 (40% thymol, 20% carvacrol). Nine treatments were prepared by the combinations of MOO1 + MOO2 (0, 400, and 800 mg kg−1; added per kg of feed) respectively: 0+0, 0+400, 0+800, 400+0, 400+400, 400+800, 800+0, 800+400, and 800+800. Eighteen chicks per treatment were divided in a completely randomized design into nine cages. Broiler weights were altered by the treatments at 21 d, when 400+400 had the highest weight, and on day 39, when the greatest weight was seen in broilers on treatments... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carvacrol; Extract; Inclusion; Thymol; Water intake. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000800283 |
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| Antunes,V.R.; Camargo,G.M.P.A.; Saad,R.; Saad,W.A.; Luiz,A.C.; Camargo,L.A.A.. |
| In this study we investigated the effects of the injection into the supraoptic nucleus (SON) of non-peptide AT1- and AT2-angiotensin II (ANG II) receptor antagonists, DuP753 and PD123319, as well as of the arginine-vasopressin (AVP) receptor antagonist d(CH2)5-Tyr(Me)-AVP, on water and 3% NaCl intake induced by the injection of ANG II into the medial septal area (MSA). The effects on water or 3% NaCl intake were assessed in 30-h water-deprived or in 20-h water-deprived furosemide-treated adult male rats, respectively. The drugs were injected in 0.5 µl over 30-60 s. Controls were injected with a similar volume of 0.15 M NaCl. Antagonists were injected at doses of 20, 80 and 180 nmol. Water and sodium intake was measured over a 2-h period. Previous... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Angiotensin II; AT1 receptors; AT2 receptors; V1 receptors; Water intake; Sodium intake; Medial septal area; Supraoptic nucleus; Rats. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998001200013 |
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| Vieira,SL; Viola,ES; Berres,J; Coneglian,JLB; Freitas,DM; Bortolini,TCK. |
| A study was conducted to compare live performance and digestive metabolism of broiler chickens fed all-vegetable diets (All-Veg) compared to a regular diet including animal by-products. Three feeds were formulated and provided to broilers according to the feeding program: pre-starter from 1 to 10 days, starter from 11 to 21 days, and grower from 21 to 35 days. All feeds had corn and soybean meal as major ingredients; however, two of them were all-vegetable diets having either Degummed Soybean Oil (DSO) or Acidulated Soybean Soapstock (ASS) as fat sources. The third diet included poultry by-product and poultry fat. A total number of 360 day-old broiler chicks were allocated to 1m² battery cages, 10 chicks in each, and 12 replicates per treatment. Live... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acidulated soybean soapstock; All vegetable diets; Broiler; Metabolizability; Water intake. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300004 |
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| Registros recuperados: 16 | |
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