Live performance, carcass characteristic and blood metabolite responses of broilers to two distinct corn types with different extent of grinding

Zhao, Jingpeng; Cui, D. P.; Zhang, Z. Y.; Jiao, Hongchao; Song, Zhigang; Lin, Hesheng

doi:10.1111/jpn.12451

Cited by 7 publications

(5 citation statements)

References 27 publications

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“…Blood samples were obtained from the wing vein of each chicken using a heparinized syringe. Plasma was obtained after centrifugation at 400 g (4 • C, 10 min) and stored at −20 • C for further analysis (34,35). After obtaining blood samples, the chickens were slaughtered through the intravenous injection of pentobarbital sodium (30 mg/kg body weight) and jugular exsanguination.…”

Section: Sample Collection and Proceduresmentioning

confidence: 99%

Effects of Dietary Energy Level on Performance, Plasma Parameters, and Central AMPK Levels in Stressed Broilers

Xiao

et al. 2021

Front. Vet. Sci.

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This study aimed to characterize the effects of diets with different energy levels on the growth performance, plasma parameters, and central AMPK signaling pathway in broilers under dexamethasone (DEX)-induced stress. A total of 216 1-day-old male broiler chickens were allocated to groups fed with high (HED), National Research Council-recommended (control), or low (LED) energy diets. At 10 days old, chickens were treated with or without dexamethasone (DEX, 2 mg/kg body weight) for 3 consecutive days. HED increased broiler average daily gain (ADG) at 10 days old, compared with the LED (P < 0.05), while average daily feed intake (ADFI) and feed conversion rate (FCR) decreased as the dietary energy level increased (P < 0.05). Chickens fed a HED had higher total protein (TP) content, albumin (ALB), glucose (GLU), total cholesterol (TCHO), high-density lipoprotein (HDL) cholesterol, and low-density lipoprotein (LDL) cholesterol, compared with the control group (P < 0.05). At 13 days old, DEX decreased ADG and increased FCR in broilers fed with different energy diets (P < 0.05). The DEX-HED group had a higher ADFI than non-DEX treated HED group chickens. In addition, TP, ALB, triglycerides (TG), TCHO, HDL, and LDL content levels in the DEX group were higher than those in the control group (P < 0.05). The uric acid (UA) content of the LED group was higher than that of the HED group (P < 0.05). Further, gene expression levels of liver kinase B1, AMP-activated protein kinase α1, neuropeptide Y, and GC receptor in the hypothalamus were increased in chickens treated with DEX (P < 0.05). There was a trend toward interaction between plasma TCHO and hypothalamic LKB1 expression (0.05 < P < 0.1). In conclusion, this study suggests that HED improves growth performance, plasma glucose and total cholesterol at 10 days old broilers, but had no significant effect on performance, plasma parameters, and central AMPK in stressed broilers.

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Section: Sample Collection and Proceduresmentioning

confidence: 99%

Effects of Dietary Energy Level on Performance, Plasma Parameters, and Central AMPK Levels in Stressed Broilers

Xiao

et al. 2021

Front. Vet. Sci.

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“…shown that the grains with the densely packed structure of more vitreous hybrids have higher density. Thus, hybrids of higher density will have better nutritional value in poultry and pig feeding (Moore et al, 2008a;Benedetti et al, 2011;Zhao et al, 2016) and lower ruminal starch (Lopes et al, 2009) and protein degradability (Seifried et al, 2016) in ruminants.…”

Section: And 4)mentioning

confidence: 99%

“…Studies have shown the importance of hardness; softer maize grain with a higher content of floury endosperm have greater starch digestibility in ruminants (Philippeau et al, 2000;Correa et al, 2002) and pigs (Giuberti et al, 2013;Odjo et al, 2017). However, it should be noted that higher digestibility of starch does not necessarily imply better utilization -harder hybrids with a higher proportion of vitreous endosperm have a slower rate of glucose release and better utilization of energy in poultry (Benedetti et al, 2011;Zhao et al, 2016;Singh and Ravindran, 2019) and pigs (Doti et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Physical properties of kernels from modern maize hybrids used in Croatia

Kljak¹,

Novaković²,

Zurak³

et al. 2020

JCEA

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The physical properties of maize are a result of kernel structure, they indicate chemical properties of the kernel, and hence, its nutritive value. This research aimed to explore the physical traits of kernels of 80 commercial maize hybrids from nine seed companies. The grain from investigated hybrids was produced during the same season on the same field under the same agricultural conditions. Moisture content, bulk and real density, Stenvert hardness (time to grind 17mL of grits, height of freshly ground grain, and coarse-to-fine particles ratio, C/F), flotation index, breakage susceptibility, kernel dimensions, and sphericity were determined in maize samples. Test weight was in a range from 70.2 to 82.1 kg/hL. Density ranged from 1.159 to 1.301 kg/L and similarly as test weight increased with increasing hardness (C/F; r=0.52 and 0.68, respectively; P<0.001); a trait that is related to breakage and insect resistance, and to decreased starch digestibility. Flotation index was from 8 to 100%, and its value decreased with increasing hardness (r=-0.65; P<0.001). A wide range of values in physical traits of investigated hybrids implies different behavior of grain during postharvest handling and processing and thus variable nutritive value.

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“…Likewise, Giacobbo et al [ 41 ] found no significant differences ( p > 0.05) in the main effect of the inclusion of three different corn hybrids in diet on BWG and FCR of broilers from 1 to 42 d of age; however, this observed similar growth performance could be attributed to a similar proximate composition of the corn hybrids, as the variation in fat content was <0.11% and CP < 0.45%. On the contrary, Zhao et al [ 42 ] reported a better performance in terms of BWG and FCR of broilers from 1 to 42 d of age fed corn–soybean meal-based diets with the inclusion of flint corn in comparison to broilers fed diets with dent corn inclusion. These authors attributed these responses to a possible better protein synthesis of young broilers fed flint corn based on lower uric acid levels found in their plasma, in comparison to young broilers fed dent corn.…”

Section: Discussionmentioning

confidence: 99%

Effect of Corn Origin on Broiler Performance, Processing Yield, and Nutrient Digestibility from 1 to 35 Days of Age

Vargas

Gulizia

Bonilla

et al. 2023

Animals

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This experiment studied the effect of feeding corn from the United States (USA), Argentina (ARG), and Brazil (BRA) on broiler performance, processing yield, and nutrient digestibility from 1 to 35 d of age. A total of 900-day old YPM × Ross 708 male broilers were randomly sorted in 36 floor pens, each containing 25 chicks and subjected to three experimental diets, resulting in 12 replications per dietary treatment. Starter, grower, and finisher diets were formulated to be only different in corn origin. Data were analyzed as a one-way ANOVA and means were separated using Tukey’s HSD test, with statistical significance considered at p ≤ 0.05. No significant differences (p > 0.05) were found in body weight, body weight gain, and feed intake from 1 to 35 d of age among the treatments. However, broilers fed diets with the inclusion of corn from the USA and BRA had a lower feed conversion ratio (FCR) compared with broilers fed diets with corn from ARG from to 1 to 35 d of age (1.434 and 1.434 vs. 1.452 g:g; p = 0.002). Broilers fed diets with the inclusion of corn from BRA had a higher breast weight compared with broilers fed diets with the inclusion of corn from ARG (575 vs. 553 g; p = 0.036), but did not differ in breast weight of broilers fed diets with corn from the USA (575 vs. 556 g; p > 0.05). Corn origin did not influence (p > 0.05) crude protein and fat digestibility. However, broilers fed diets with corn from the USA and BRA had greater phosphorus (P) (63.37, 62.23 vs. 55.26%; p = 0.0003), calcium (Ca) (41.59, 43.85 vs. 30.23%; p = 0.0003), and potassium (K) (88.98, 87.97 vs. 86.04%; p = 0.001) digestibility compared with broilers fed diets with corn from ARG. Overall, corn origin influenced FCR, breast weight, and P, Ca, and K digestibility of broilers from 1 to 35 d of age.

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Live performance, carcass characteristic and blood metabolite responses of broilers to two distinct corn types with different extent of grinding

Cited by 7 publications

References 27 publications

Effects of Dietary Energy Level on Performance, Plasma Parameters, and Central AMPK Levels in Stressed Broilers

Effects of Dietary Energy Level on Performance, Plasma Parameters, and Central AMPK Levels in Stressed Broilers

Physical properties of kernels from modern maize hybrids used in Croatia

Effect of Corn Origin on Broiler Performance, Processing Yield, and Nutrient Digestibility from 1 to 35 Days of Age

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