Blood biochemical parameters and organ development of brown layers fed reduced dietary protein levels in two rearing systems

Viana, Eduardo de Faria; Mello, Heloisa Helena de Carvalho; Carvalho, Fabyola Barros de; Café, Marcos Barcellos; Leandro, Nadja Susana Mogyca; Stringhini, José Henrique

doi:10.5713/ab.21.0145

Cited by 4 publications

(1 citation statement)

References 32 publications

(34 reference statements)

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“…Various studies have investigated this relationship. Viana et al (2022) evaluated the effect of different levels of crude protein and 2 rearing systems (cage and floor) on the blood parameters and organ development of brown laying hens. The study found that blood parameters were similar in birds reared in both cage and floor systems.…”

Section: Introductionmentioning

confidence: 99%

Effects of indoor and outdoor rearing system on geese biochemical parameters and cecal microbial composition

Lin¹,

Chang²,

Shih-Yi³

et al. 2023

Poultry Science

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Section: Introductionmentioning

confidence: 99%

Effects of indoor and outdoor rearing system on geese biochemical parameters and cecal microbial composition

Lin¹,

Chang²,

Shih-Yi³

et al. 2023

Poultry Science

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Response of Digestive Tract Size In Indonesian Native Chickens Fed Indigofera sp.

Dharmawan,

Parwati,

Reza

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The development of Balitbangtan native chicken through tractic feed is continually being advocated by the Indonesian government to enhance poultry protein consumption. Indigofera sp. is known for its flavonoid, tannin, and saponin content, which act as antimicrobial and anti-inflammatory agents for chicken digestive tract. The study aimed to investigate the response of Balitbangtan chicken’s digestive tract size substituted with Indigofera sp. A total of 40 chickens were used in four treatments with five replications. The four treatments were T0 (25% concentrate + 35% rice bran + 40% maize); T1 (T0 with substitution of concentrate with 10% Indigofera sp. meal); T2 (T1 + 2cc/l Bio-B); and T3 (22% concentrate + 31.5% rice bran + 10% Indigofera sp. meal + 36.5% maize). The collection of digestive tracts was measured by unit/100g. Data were analyzed using ANOVA by SPSS 26. Overall, the treatments did not differ significouldtly in digestive tract size (p>0.05). Treatment T1 showed great size of crop, proventriculus, duodenum, jejunum, cecum, colon, and pancreas sizes compared to T0, T2, and T3. In conclusion, the substitution of 10% Indigofera sp. meal in T1 resulted the best response in Balitbangtan chicken’s digestive tract size.

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Biochemical indices of blood protein metabolism as criteria of broiler nutrition adequacy

Kuzmina,

Ovchinnikova

2024

Sib. vestn. s-h. nauki

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The experiments were conducted on the broiler chickens of the cross "Smena-9" in the vivarium of the Selective Genetic Centre "Zagorskoe Experimental Breeding Farm" in Sergiev Posad. The results of the blood plasma biochemical tests showed wavelike changes in the trypsin activity at all ages stu- died. The increased concentration of total protein at 7 days of age in all groups could have been induced by switching from endogenous feed when receiving exogenous feed containing more protein than the yolk sac. The age dynamics of the alkaline phosphatase activity had sharp fluctuations throughout the whole rearing period. At 1–7 days of age, there was an increase in the phosphatase activity with a subsequent decrease until 35 days of age relative to the control in all groups. The peak of high activity of this enzyme occurs on the 7th day – 31030 units/l in the control group and on the 14th day in the experimental group 2. Thereafter, there is a gradual decrease in the activity of this enzyme. A sharp increase in the level of alkaline phosphatase in the blood of broiler chickens at 7–21 days of age indicates intensive growth and formation of the organism, but a sharp surge in activity at 7 days of age could also be caused by the transition to a new diet, which in itself is a stress factor. A decrease in the activity of this enzyme at 28–35 days of age indicates a slowdown in the growth process. Consequently, the purpose of this study was to investigate the biochemical composition of blood in different periods of post-embryogenesis of broiler chickens of the cross "Smena-9" at changing the level of protein in the diet, which in this case remains a relevant and informative source of information on the effect of changes in the ingredient composition of feed on the bird organism as a whole.

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Blood biochemical parameters and organ development of brown layers fed reduced dietary protein levels in two rearing systems

Cited by 4 publications

References 32 publications

Effects of indoor and outdoor rearing system on geese biochemical parameters and cecal microbial composition

Effects of indoor and outdoor rearing system on geese biochemical parameters and cecal microbial composition

Response of Digestive Tract Size In Indonesian Native Chickens Fed Indigofera sp.

Biochemical indices of blood protein metabolism as criteria of broiler nutrition adequacy

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