Partitioning of dietary energy of chickens fed maize- or wheat-based diets with and without a commercial blend of phytogenic feed additives

Pirgozliev, V.; Beccaccia, A.; Rose, S.P.; Bravo, David

doi:10.2527/jas.2014-8175

Cited by 17 publications

(11 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It remains unclear, however, whether GPCs can be used as feed additives in a wheat-soybean meal diet for commercial poultry production. It was reported that the efficiency of phytogenic additives was affected by type of diet (corn or wheat) in chickens (Pirgozliev et al, 2015). Thus, it is interesting to explore the efficacy of GPCs on wheat-based diet in broiler chicken.…”

Section: Introductionmentioning

confidence: 99%

Effects of dietary grape proanthocyanidins on the growth performance, jejunum morphology and plasma biochemical indices of broiler chicks

Yang

Zhang

Wang

et al. 2017

Animal

View full text Add to dashboard Cite

Grape proanthocyanidins (GPCs) are a family of naturally derived polyphenols that have aroused interest in the poultry industry due to their versatile role in animal health. This study was conducted to investigate the potential benefits and appropriate dosages of GPCs on growth performance, jejunum morphology, plasma antioxidant capacity and the biochemical indices of broiler chicks. A total of 280 newly hatched male Cobb 500 broiler chicks were randomly allocated into four treatments of seven replicates each, and were fed a wheat-soybean meal-type diet with or without (control group), 7.5, 15 or 30 mg/kg of GPCs. Results show that dietary GPCs decrease the feed conversion ratio and average daily gain from day 21 to day 42, increase breast muscle yield by day 42 and improve jejunum morphology between day 21 and day 42. Chicks fed 7.5 and 15 mg/kg of GPCs show increased breast muscle yield and exhibit improved jejunum morphologies than birds in the control group. Dietary GPCs fed at a level of 15 mg/kg markedly increased total superoxide dismutase (T-SOD) activity between day 21 and day 42, whereas a supplement of GPCs at 7.5 mg/kg significantly increased T-SOD activity and decreased lipid peroxidation malondialdehyde content by day 42. A supplement of 30 mg/kg of GPCs has no effect on antioxidant status but adversely affects the blood biochemical indices, as evidenced by increased creatinine content, increased alkaline phosphatase by day 21 and increased alanine aminotransferase by day 42 in plasma. GPC levels caused quadratic effect on growth, jejunum morphology and plasma antioxidant capacity. The predicted optimal GPC levels for best plasma antioxidant capacity at 42 days was 13 to 15 mg/kg, for best feed efficiency during grower phase was 16 mg/kg, for best jejunum morphology at 42 days was 17 mg/kg. In conclusion, GPCs (fed at a level of 13 to 17 mg/kg) have the potential to be a promising feed additive for broiler chicks.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of dietary grape proanthocyanidins on the growth performance, jejunum morphology and plasma biochemical indices of broiler chicks

Yang

Zhang

Wang

et al. 2017

Animal

View full text Add to dashboard Cite

show abstract

“…It was reported that PN improved nutrient digestibility and group uniformity (Sökmen et al., 2004). Pirgozliev et al. (2015) defined that PN did not affect dietary ME, but caused a significant improvement in the utilization of dietary energy, which did not always relate to growth performance.…”

Section: Discussionmentioning

confidence: 99%

“…Our results showed that including PN product in the low energy diet increased the AMEn content by 11 kcal/kg, but no improvement on energy and protein digestibility was observed, the different results may be due to different PN products and their activities. Meanwhile, rearing conditions should take into account for experiments involving use of PN (Pirgozliev et al., 2015).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of phytonutrients on growth performance, antioxidative status, and energy utilization of broilers fed low energy diets

Yan

et al. 2019

Animal Nutrition

View full text Add to dashboard Cite

Two experiments were conducted to investigate the effects of phytonutrients (PN) on growth performance, antioxidant status, intestinal morphology, and nutrient utilization of birds fed low energy diets. In Exp. 1, a total of 1,440 one-day-old Ross 308 male broiler chickens were randomly divided into 3 treatment groups, with 16 replicates per treatment (48 pens; 30 birds per pen). Birds in treatment 1 were fed diets with normal energy content (NE). Birds in treatment 2 were fed NE diet but with 60 kcal removed (LE). Birds in treatment 3 were assigned to LE diet supplemented with PN (LE + PN). Results indicated that LE diet increased feed conversion ratio (FCR) compared with NE from d 1 to 38, while LE + PN diet prevented this response (P = 0.02). At d 26, birds in the LE + PN group had the highest ileal and jejunal villus height to crypt depth (VH:CD) ratio. At d 39, PN supplementation improved ileal and jejunal VH:CD ratio, compared with LE group. Moreover, birds fed PN diets received a better economic profit. In Exp. 2, 360 one-day-old Ross 308 male broiler chickens were used in a metabolism study. The treatments used in Exp. 2 were the same as those in Exp.1, with 4 replicates (pens) and 30 birds in each replicate. Dietary apparent metabolism energy (AME), energy and protein digestibility were determined between 21 and 28 d of age. Results showed that chickens fed LE + PN diet tended to have greater AME (P = 0.02) and nitrogen-corrected apparent metabolism energy (AMEn) (P = 0.03) than birds fed LE diets. It was concluded that LE + PN showed a potential advantage to improve feed conversion and gut health of broilers, as well as economic profits.

show abstract

“…Where: FI is the dry matter (kg) consumed for the experimental period. REc is the total energy retained in the carcass (see [50]).…”

Section: Dietary Available Energy Determinationmentioning

confidence: 99%

Plant Extracts, Energy, and Immune Modulation in Broilers

Pirgozliev¹,

Mansbridge²,

Rose³

et al. 2018

Phytochemicals - Source of Antioxidants and Role in Disease Prevention

View full text Add to dashboard Cite

This chapter presents information obtained from experiments involving male Ross 308 broiler chickens on the effects of a standardised combination of plant extracts (PE) including carvacrol, cinnamaldehyde and capsicum oleoresin, on bird performance, hepatic antioxidant concentration and immunomodulation. Birds were reared under industryrecognised environments and were fed one of four diets. There were two control diets based on either wheat or maize, formulated to be iso-energetic and iso-nitrogenic. The other two diets were the control diets supplemented with 100 g per tonne of PE, respectively. Feeding PE improved dietary feed efficiency, dietary net energy and hepatic antioxidant contents of the birds, but did not change dietary metabolisable energy (ME). Overall, feeding PE reduced the mRNA transcript levels of three cytokines (IL-12B, IFN-G, and IL-6) and the marker CD 40 LG in caecal tonsils. Dietary PE may maximise the nutritional value of feed through improving gut health by reducing intestinal inflammation. Their mode of action is associated with improved dietary energy availability, immune status and hepatic antioxidant contents of the birds. However, studies that have focused solely on the effect of PE on ME alone may not have detected their full benefit to improve the efficiency of broiler meat production.

show abstract

Partitioning of dietary energy of chickens fed maize- or wheat-based diets with and without a commercial blend of phytogenic feed additives

Cited by 17 publications

References 30 publications

Effects of dietary grape proanthocyanidins on the growth performance, jejunum morphology and plasma biochemical indices of broiler chicks

Effects of dietary grape proanthocyanidins on the growth performance, jejunum morphology and plasma biochemical indices of broiler chicks

Effects of phytonutrients on growth performance, antioxidative status, and energy utilization of broilers fed low energy diets

Plant Extracts, Energy, and Immune Modulation in Broilers

Contact Info

Product

Resources

About