Histological alterations of small intestine and growth performance of broiler chicks after in ovo copper injection at 10 days of embryogenesis period

2021 ◽  
pp. 1-8
Author(s):  
Hanan A. Hassan ◽  
Ahmed R. Arafat ◽  
Khaled Y. Farroh ◽  
Mohamed S. Bahnas ◽  
Ibrahim El-wardany ◽  
...  
2009 ◽  
Vol 2009 ◽  
pp. 198-198
Author(s):  
S N Mousavi ◽  
F Foroudi ◽  
F Arab Baghi ◽  
M Shivazad ◽  
H Ghahri

The few days before and after hatch is a critical period for the development and survival of commercial broilers. Glycogen reserves in the chick embryo are significantly depleted during the perihatch period in order to meet the high energy demands during the process of emergence (Uni and Ferket, 2004). The immediate posthatch period is characterized by a transition from the use of lipid-rich yolk as the nutrient source to exogenous feed rich in carbohydrates and proteins. This transition is accompanied by rapid physical and functional development of the gastrointestinal tract (Sklan, 2001). The accelerated rate of development posthatch is reflected in the several-fold improvement in the development of the gastrointestinal tract and organ growth which will allow for a more efficient uptake of nutrients for muscle development. During late embryogenesis, solutions administered into the amniontic fluid (in ovo feeding) are consumed by the embryo, digested, and absorbed by the embryonic intestine prior to pipping (Uni et al., 2005). In ovo feeding of supplemental nutrients may help to overcome the constraint of limited egg nutrients (Foye et al., 2006). The objective of this experiment was to evaluate the effects of in ovo feeding of carbohydrates and threonine, alone or in combination, on growth performance of broiler chicks from 1 to 42 d of age.


2021 ◽  
Vol 51 (4) ◽  
pp. 488-496
Author(s):  
S. Yasmin ◽  
M.S. Yousaf ◽  
K.A. Majeed ◽  
M.A. Rashid ◽  
S.K. Tahir ◽  
...  

The study evaluated the efficacy of ethanolic extracts of Catharanthus roseus (C. roseus) in altering growth performance, viscera  development and intestinal microarchitecture in broilers. Day-old broiler chicks (n = 175) were randomly divided into seven groups (n = 25/group) with 5 replicates (n = 5). The chicks in the control groups were fed a corn-soya-based basal diet, whereas groups 2 - 4 had the same basal diets supplemented with 0.05%, 0.1%, and 0.2% ethanolic leaf extracts (ELE), respectively. Chicks in groups 5 - 7 were fed the basal diet supplemented with 0.05%, 0.1%, and 0.2% ethanolic root extracts (ERE) of C. roseus, respectively. The growth performance and feed conversion ratio remained unchanged, but feed consumption of birds supplemented with 0.1% ERE increased in weeks 1 and 3. The relative length of the small intestine was lower in the 0.05% ERE group compared with the control. Villus height, width, surface area, and lamina propria thickness were higher in the 0.1% ERE group in all three segments of the small intestine than in the control. Broilers supplemented with 0.1% ERE performed better in terms of feed consumption and improved intestinal microarchitecture of the small intestine.


2018 ◽  
Vol 9 (21) ◽  
pp. 86-92
Author(s):  
Sahel Bakhshayesh ◽  
Jamal Seifdavati ◽  
Sayyad Seifzadeh ◽  
Farzad Mirzaei Aghjeh Gheshlagh ◽  
Hosein Abdi Benmar ◽  
...  

2019 ◽  
Vol 12 (8) ◽  
pp. 1233-1239
Author(s):  
H. T. Saragih ◽  
A. A. K. Muhamad ◽  
Alfianto Alfianto ◽  
F. Viniwidihastuti ◽  
L. F. Untari ◽  
...  

Aim: This study aimed to examine the effect of dietary Spirogyra jaoensis in starter feed on growth performance, pectoralis muscle (PM) growth, and small intestine morphology of broiler chickens. Materials and Methods: One hundred twenty one-day-old Cobb-500 broilers (body weight 46±2.6 g) were divided into four equal groups with 3 replicates in each group and given basal feed supplemented with dried S. jaoensis at doses of 0%, 0.5%, 1%, or 2%. The treatment was carried out until the chickens were 18 days old to examine growth of broiler chicks at starter period (8-21 days old). Results: Supplementation with S. jaoensis at doses of 0.5% and 1% resulted in increased weight and improved feed conversion ratio compared to the control group. At the end of treatment, chickens fed with 0.5% and 1% S. jaoensis weighed 428.3±47.8 g and 426.9±31.8 g, respectively, and were significantly heavier than the control group (373.1±44.1 g). Furthermore, parameters related to PM growth and small intestine morphology of chickens supplemented with 0.5% S. jaoensis in basal feed were improved compared to the control group. Conclusion: The results of this research indicate that S. jaoensis at a dose of 0.5% improves growth performance, PM growth, and small intestine morphology in broiler chickens. Keywords: broiler chicken, feed supplement, pectoralis muscle growth, small intestine, Spirogyra jaoensis.


Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1795 ◽  
Author(s):  
Insaf Riahi ◽  
Virginie Marquis ◽  
Antonio J. Ramos ◽  
Joaquim Brufau ◽  
Enric Esteve-Garcia ◽  
...  

The present study with 1-day-old male broilers (Ross 308) was conducted to evaluate the effects of deoxynivalenol (DON) at different levels (5 and 15 mg/kg feed) on growth performance, relative weight of organs, morphology of the small intestine, serum biochemistry, and welfare parameters of broiler chickens. Forty-five broiler chicks were randomly divided into three different experimental groups with five replicates each: (1) control group received a non-contaminated diet, (2) contaminated diet with 5 mg DON/kg of feed, and (3) contaminated diet with 15 mg DON/kg of feed for 42 days. Results showed that feed artificially contaminated with DON at guidance level (5 mg/kg diet) did not affect growth performance parameters. However, 15 mg/kg reduced body weight gain and altered feed efficiency. DON at two assayed levels significantly increased the absolute and relative weight of thymus and the relative weight of gizzard and decreased the absolute and the relative weight of the colon. Compared to controls, both doses affected small intestine morphometry parameters. In terms of biochemical indicators, DON at 5 mg/kg reduced the creatine kinase level and at 15 mg/kg DON reduced the cholesterol level. Furthermore, DON at 15 mg/kg induced more fear in broilers compared to broilers fed the guidance level. It was concluded that even the guidance level of DON did not affect the chickens’ performance. However, its toxic effect occurred in some organs and biochemical parameters.


2020 ◽  
Vol 158 (1-2) ◽  
pp. 143-149
Author(s):  
Q. C. Ren ◽  
J. J. Xuan ◽  
X. C. Yan ◽  
X. J. Deng ◽  
Z. Z. Fan ◽  
...  

AbstractRecently, Echinacea purpurea and its extracts have gained much interest due to their improvement on meat quality, but little information is available on the application of the purified Echinacea purpurea polysaccharide (4-O-methyl-glucuronoarabinoxylan, 4OMG). Thus, this trial aimed at assessing the effects of dietary supplementation of 4OMG on growth performance, thigh meat quality and small intestine development of broilers. A total of 240 1-day-old female broiler chicks were randomly distributed to four groups with three replicates of 20 within each group. Each group received either 0, 15, 20 or 25 g 4OMG/kg DM of diet. During the entire experiment, broilers had ad libitum access to water and feed, and the feed intake was recorded daily. All broilers were weighed before and end of the experiment. For each group, three pens with a total of 20 broilers were randomly selected to slaughter after 30 days. Increasing dietary supplementation of 4OMG linearly increased final live weight and daily body weight gain (P = 0.013) of broilers, Gain-to-Feed ratio (P < 0.001), muscle pH (P = 0.024) and redness (P = 0.001), but decreased drip loss (P = 0.033), shear force value (P = 0.004) and hardness (P = 0.022) of the thigh meat. Broilers fed diet with higher 4OMG had greater weight index, villus height and ratio of villus height to crypt depth in both duodenum and jejunum. These results indicated that increasing dietary supplementation of 4OMG was beneficial for growth performance, meat quality and development of the small intestine of broilers.


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