Effect of incubator type and broiler breeder age on hatchability and chick quality

Two experiments were conducted to evaluate the effect of broiler breeder age and incubator type on hatching parameters, hatch window, embryo diagnosis results, and hatchling physical quality. The treatments consisted of a combination of three broiler breeder ages (29, 35 and 59 weeks of age) and two incubator types (single stage, SS; or and multiple stage, MS). A completely randomized design in a 3x2 factorial arrangement was applied. In Experiment I, 1,896 eggs were used and 360 eggs in Experiment II. There was an interaction between breeder age and incubator type only for hatchling physical quality score. Independently of incubator type, hatchability rate, late embryo mortality, and egg contamination were higher in the eggs laid by older breeders (59-wk-old). Early mortality (0-4 days) was higher in the embryos from young breeders (29-wk-old). A shorter hatch window birth was obtained in the SS incubator, resulting in higher hatchling body weight relative to egg weight, and better hatchling physical quality score. Both types of incubators provide good conditions for embryo development; however, the physical quality of chicks derived from eggs from intermediate-aged breeders (35-wk-old) is better when eggs are incubated in SS incubators.

Effect of incubator type and broiler breeder age on hatchability and chick quality

Two experiments were conducted to evaluate the effect of broiler breeder age and incubator type on hatching parameters, hatch window, embryo diagnosis results, and hatchling physical quality. The treatments consisted of a combination of three broiler breeder ages (29, 35 and 59 weeks of age) and two incubator types (single stage, SS; or and multiple stage, MS). A completely randomized design in a 3x2 factorial arrangement was applied. In Experiment I, 1,896 eggs were used and 360 eggs in Experiment II. There was an interaction between breeder age and incubator type only for hatchling physical quality score. Independently of incubator type, hatchability rate, late embryo mortality, and egg contamination were higher in the eggs laid by older breeders (59-wk-old). Early mortality (0-4 days) was higher in the embryos from young breeders (29-wk-old). A shorter hatch window birth was obtained in the SS incubator, resulting in higher hatchling body weight relative to egg weight, and better hatchling physical quality score. Both types of incubators provide good conditions for embryo development; however, the physical quality of chicks derived from eggs from intermediate-aged breeders (35-wk-old) is better when eggs are incubated in SS incubators.(AU)

Efeito do período e temperatura de armazenamento de ovos férteis sobre o rendimento de incubação e características de qualidade de codornas neonatas / Effect of period and storage temperature of hatching eggs from breeder quails on hatching results and quality characteristics of neonate quails

Foram estudados parâmetros de incubação e de qualidade física de codornas japonesas neonatas oriundas de ovos submetidos a diferentes condições de armazenamento. Os tratamentos constituíram-se de combinações entre temperaturas e períodos de armazenamento dos ovos férteis. O delineamento foi em blocos casualizados em arranjo fatorial 2x5, temperaturas (ambiente (28±1,5ºC) e refrigerada (14ºC)) x períodos de armazenamento (um, três, seis, nove ou doze dias), totalizando 10 tratamentos com 105 repetições, sendo cada ovo uma unidade experimental. Os ovos foram incubados nas condições de 37,9ºC e 60% de umidade relativa (UR). Houve aumento de perda de peso do ovo com o período de armazenamento, com efeito linear positivo. Observou-se maior taxa de eclosão/ovos férteis para os ovos armazenados sob refrigeração. Houve efeito linear negativo para o período de armazenamento sobre a taxa de eclosão somente para os ovos armazenados em 28ºC. Para o peso da codorna neonata, houve efeito linear negativo, independentemente da temperatura de armazenamento. O comprimento do intestino delgado em temperatura ambiente sofreu influência do período de armazenamento, sendo que o período de 12 dias apresentou pior resultado. O pior escore de qualidade física foi encontrado em codornas neonatas oriundas de ovos armazenados em temperatura ambiente por 12 dias. Pode-se concluir que, para melhorar a eclosão e a qualidade física da progênie, ovos de codorna devem ser armazenados por até nove dias e em temperatura de 14ºC.

Incubation parameters and physical quality of neonate Japanese quails hatched from eggs that were subject to different storage conditions were evaluated. The treatments consisted of a combination of temperatures and storage periods of hatching eggs from breeder quails. The experiments were conducted in a randomized block design in a factorial arrangement 2x5, with two storage temperatures (ambient temperature ± 28°C and refrigerated temperature 14°C) and five storage periods (one, three, six, nine and twelve days), totaling 10 treatments with 105 repetitions, each egg considered to be an experimental unit. The eggs were incubated at 37.9°C with 60% of relative humidity (RH). There was a positive linear effect between egg weight loss and storage period. Higher rates of hatching/fertile eggs were observed for eggs stored in refrigerated conditions. A negative linear effect was observed between storage period and hatching rate when the eggs where stored at a temperature of 28ºC. There was a negative effect for neonate quail weight, independent of storage temperatures. The intestine length was influenced by storage period and 12 days of storage showed the shortest intestine length. Lower scores of physical quality were observed in quails that hatched from eggs stored in ambient temperatures during 12 days. In this context, to improve hatching rates and physical quality of neonate quails the eggs should be stored up to nine days at a temperature of 14°C.

Efeito do período e temperatura de armazenamento de ovos férteis sobre o rendimento de incubação e características de qualidade de codornas neonatas / Effect of period and storage temperature of hatching eggs from breeder quails on hatching results and quality characteristics of neonate quails

Foram estudados parâmetros de incubação e de qualidade física de codornas japonesas neonatas oriundas de ovos submetidos a diferentes condições de armazenamento. Os tratamentos constituíram-se de combinações entre temperaturas e períodos de armazenamento dos ovos férteis. O delineamento foi em blocos casualizados em arranjo fatorial 2x5, temperaturas (ambiente (28±1,5ºC) e refrigerada (14ºC)) x períodos de armazenamento (um, três, seis, nove ou doze dias), totalizando 10 tratamentos com 105 repetições, sendo cada ovo uma unidade experimental. Os ovos foram incubados nas condições de 37,9ºC e 60% de umidade relativa (UR). Houve aumento de perda de peso do ovo com o período de armazenamento, com efeito linear positivo. Observou-se maior taxa de eclosão/ovos férteis para os ovos armazenados sob refrigeração. Houve efeito linear negativo para o período de armazenamento sobre a taxa de eclosão somente para os ovos armazenados em 28ºC. Para o peso da codorna neonata, houve efeito linear negativo, independentemente da temperatura de armazenamento. O comprimento do intestino delgado em temperatura ambiente sofreu influência do período de armazenamento, sendo que o período de 12 dias apresentou pior resultado. O pior escore de qualidade física foi encontrado em codornas neonatas oriundas de ovos armazenados em temperatura ambiente por 12 dias. Pode-se concluir que, para melhorar a eclosão e a qualidade física da progênie, ovos de codorna devem ser armazenados por até nove dias e em temperatura de 14ºC(AU)

Incubation parameters and physical quality of neonate Japanese quails hatched from eggs that were subject to different storage conditions were evaluated. The treatments consisted of a combination of temperatures and storage periods of hatching eggs from breeder quails. The experiments were conducted in a randomized block design in a factorial arrangement 2x5, with two storage temperatures (ambient temperature ± 28°C and refrigerated temperature 14°C) and five storage periods (one, three, six, nine and twelve days), totaling 10 treatments with 105 repetitions, each egg considered to be an experimental unit. The eggs were incubated at 37.9°C with 60% of relative humidity (RH). There was a positive linear effect between egg weight loss and storage period. Higher rates of hatching/fertile eggs were observed for eggs stored in refrigerated conditions. A negative linear effect was observed between storage period and hatching rate when the eggs where stored at a temperature of 28ºC. There was a negative effect for neonate quail weight, independent of storage temperatures. The intestine length was influenced by storage period and 12 days of storage showed the shortest intestine length. Lower scores of physical quality were observed in quails that hatched from eggs stored in ambient temperatures during 12 days. In this context, to improve hatching rates and physical quality of neonate quails the eggs should be stored up to nine days at a temperature of 14°C(AU)

Total and segmental colonic transit time in constipated patients with Chagas' disease without megaesophagus or megacolon.

Manometric and pharmacological tests have shown that motor abnormalities may occur in the non-dilated colons of chagasic patients. In order to investigate the presence of abnormalities of colonic function in constipated patients with Chagas' disease (ChC) without megaesophagus or megacolon, studies of total and segmental colonic transit time with radiopaque markers were performed on 15 ChC patients, 27 healthy volunteers and 17 patients with idiopathic constipation (IC). The values obtained for the control group were similar to those reported in the literature (total colonic time: 34. 1 +/- 15.6 h; right colon: 9.9 +/- 7.3 h; left colon: 10.8 +/- 10 h, and rectosigmoid: 12.6 +/- 9.9 h). Colonic transit time data permitted us to divide both IC and ChC patients into groups with normal transit and those with slow colonic transit. Colonic inertia was detected in 41% of IC patients and in 13% of ChC patients; left colon isolated stasis (hindgut dysfunction) was detected in 12% of IC patients and 7% of ChC patients, and outlet obstruction was detected in 6% of IC patients and 7% of ChC patients. There were no significant differences in total or segmental colonic transit times between slow transit IC and slow transit ChC patients. In conclusion, an impairment of colonic motility was detected in about 30% of constipated patients with Chagas' disease without megaesophagus or megacolon. This subgroup of patients presented no distinctive clinical feature or pattern of colonic dysmotility when compared to patients with slow transit idiopathic constipation.

Total and segmental colonic transit time in constipated patients with ChagasÆ disease without megaesophagus or megacolon

Manometric and pharmacological tests have shown that motor abnormalities may occur in the non-dilated colons of chagasic patients. In order to investigate the presence of abnormalities of colonic function in constipated patients with Chagas disease (ChC) without megaesophagus or megacolon, studies of total and segmental colonic transit time with radiopaque markers were performed on 15 ChC patients, 27 healthy volunteers and 17 patients with idiopathic constipation (IC). The values obtained for the control group were similar to those reported in the literature (total colonic time: 34.1 + or - 15.6 h; right colon: 9.9 + or - 7.3 h; left colon: 10.8 + or - 10 h, and rectosigmoid: 12.6 + or - 9.9 h). Colonic transit time data permitted us to divide both IC and ChC patients into groups with normal transit and those with slow colonic transit. Colonic inertia was detected in 41 percent of IC patients and in 13 percent of ChC patients; left colon isolated stasis (hindgut dysfunction) was detected in 12 percent of IC patients and 7 percent of ChC patients, and outlet obstruction was detected in 6 percent of IC patients and 7 percent of ChC patients. There were no significant differences in total or segmental colonic transit times between slow transit IC and slow transit ChC patients. In conclusion, an impairment of colonic motility was detected in about 30 percent of constipated patients with Chagas disease without megaesophagus or megacolon. This subgroup of patients presented no distinctive clinical feature or pattern of colonic dysmotility when compared to patients with slow transit idiopathic constipation

[Scintigraphic study of gastric emptying and intragastric distribution of a solid meal: gender differences]. / Estudo do esvaziamento gástrico e da distribuição intragástrica de uma dieta sólida através da cintilografia: diferenças entre os sexos.

Gender-related differences in gastric emptying are still controversial. The aims of this study were: to confirm the sex-related difference in gastric emptying of a solid meal and to investigate its association with different patterns of meal distribution between the proximal and distal gastric compartments. Eighteen healthy volunteers (nine males, mean age 35 +/- 9 years; nine females, mean age: 41 +/- 11 years) were studied in the morning, after ingestion of the solid test-meal (an omelette labeled with 185MBq of 99mTc-sulfur colloid). Simultaneous anterior and posterior images of the stomach were acquired immediately after ingestion of the meal and every 10 minutes for 120 minutes. Time versus activity curves were obtained for the whole, proximal and distal stomach. Gastric T1/2 was longer in women (96.1 +/- 17.2 min) than in men (79.9 +/- 17.8 min; P = 0.02). The analysis of the meal distribution inside the stomach showed no differences between males and females in proximal gastric emptying, but the meal retention in the distal compartment was significantly increased among women (P = 0.04). In conclusion, gastric emptying of a solid meal is slower in pre-menopausal women than in age-matched men, probably due to an increased retention of the meal in the distal compartment. This should be taken into consideration to avoid misleading diagnosis of gastroparesis for female patients.

Ceftriaxone in the treatment of spontaneous bacterial peritonitis: ascitic fluid polymorphonuclear count response and short-term prognosis.

BACKGROUND/AIMS: In this study, ascitic fluid polymorphonuclear (PMN) response, short-term prognosis, and factors related to hospital mortality were investigated in 62 cases of spontaneous bacterial peritonitis occurring in cirrhotic patients treated with Ceftriaxone (1g every 12 hours). METHODOLOGY: The diagnostic criteria for (SBP) were ascitic fluid PMN count < 250 cells/mm3 and no evidence of secondary peritonitis. Analysis of ascitic fluid samples were obtained on admission, and on the 4th and 10th days of antibiotic therapy. RESULTS: The etiology of cirrhosis was alcohol in 63% of the cases, and 79.5% of patients belonged to Child-Pugh Class C. Ascitic fluid analysis showed positive cultures in 47% of the cases, and a marked decrease in PMN count during treatment (admission: 7762 +/- 2837; 4th day: 388 +/- 91; 10th day: 173 +/- 59 cells/mm3). Ascitic PMN was < 250 cells/mm3 within 4 days of treatment in 33% of the cases. The hospital mortality rate was 24%, and was related to gastrointestinal hemorrhage, hepatic encephalopathy, renal failure and 4th day ascitic fluid PMN count. CONCLUSION: Ceftriaxone is a safe and effective option for the treatment of SBP.

Gastrite crônica associada ao Helicobacter pylori em pacientes com dispepsia näo ulcerosa e com úlcera duodenal / Chronic gastritis associated to Helicobacter pylori in patients with non-ulcerating dyspepsia and with duodenal ulcer

Prevalência da gastrite crônica e da infecçäo da mucosa gástrica por Helicobacter pylori em pacientes com dispepsia näo ulcerosa e com úlcera duodenal. Tipo de estudo, local, pacientes: Foram estudados, prospectivamente, 48 pacientes consecutivos com dispepsia näo ulcerosa (DNU) do tipo dismotilidade e 13 pacientes consecutivos com úlcera duodenal (UD) em atividade, selecionados no ambulatório de Gastrenterologia do Hospital das Clínicas da Universidade Estadual de Campinas (Unicamp). Intervençöes: Em cada um dos pacientes, foram realizadas oito biópsias endoscópicas (quatro do corpo e quatro do antro gástrico), para identificaçäo do H. pylori, utilizando-se três testes: urease, gram e exaqme histopatológico. Medidas e resultados: Nos 48 pacientes com DNU, o teste de urease foi postivo em 89,6% no antro e 81,2% no corpo; o gram foi positivo em 81,2% no antro e em 77,1% no corpo; e o H. pylori foi identificado no exame histopatológico em 79,2% no antro e em 70,8% no corpo gástrico. Na mucosa do antro gástrico de todos os 48 pacientes com DNU, pelo menos um dos três testes empregados foi positivo. Em todos os 13 pacientes com UD, os três testes foram positivos no antro gástrico, todos com gastrite crônica do antro no exame histopatológico. Gastrite crônica do corpo gástrico, com presença do HY. pylori no exame histopatológico, foi encontrada em 10 dos 13 pacientes. O teste de urease foi positivo na mucosa do corpo gástrico em todos os casos de UD. Conclusöes: Os autores acreditam que a alta prevalência dos testes empregados para identificaçäo fo H. pylori nos pacientes com DNU possa ser explicada pelo grupo selecionado de pacientes pertencentes a uma classe socioeconômica menos favorecida. A presença do H. pyloru na mucosa gástrica de todos os pacientes com UD está de acordo com algums trabalhos já publicados

[Chronic gastritis associated to Helicobacter pylori in patients with non-ulcerating dyspepsia and with duodenal ulcer]. / Gastrite crônica associada ao "Helicobacter pylori" em pacientes com dispepsia não ulcerosa e com úlcera duodenal.

PURPOSE: Prevalence of chronic gastritis and infection of the gastric mucosa by Helicobacter pylori in patients with non-ulcerating dyspepsia and duodenal ulcer. TYPE OF STUDY, SITE, PATIENTS: A prospective study was made of 48 consecutive patients with non-ulcerating dyspepsia of the dismotility type (NUD), and 13 consecutive patients with duodenal ulcer in activity (DU), selected from the gastroenterology outpatient clinic of the Clinical Hospital of the State University of Campinas (Unicamp). INTERVENTIONS: Eight endoscopic biopsies (4 of the body and 4 of the gastric antrum) were performed on each of the patients to identify H. pylori, using three tests: urease, gram and histopathological examination. MEASUREMENTS AND RESULTS: Of the 48 patients with NUD, urease test was positive in 89.6% in the antrum and in 81.2% in the body; gram test was positive in 81.2% in the antrum and in 77.1% in the body; and H. pylori was identified in the histopathological examination in 79.2% in the antrum and in 70.8% in the gastric body. At least one of the three tests applied was positive in the mucosa of the gastric antrum in all 48 patients with NUD. In all 13 patients with DU, the three tests were positive in the gastric antrum, all of them with chronic gastritis of the antrum in the histopathological examination. Chronic gastritis of the gastric body with presence of H. pylori in the histopathological examination was found in 10 out of 13 patients. The urease test was positive in the mucosa of the gastric body in all DU cases. CONCLUSIONS: The authors believed that the high prevalence of the tests used to identify H. pylori in patients with NUD can be explained by the selected group of patients, which belong to the low socio-economic class. The presence of H. pylori in the gastric mucosa of all patients with DU agrees with studies already published.