Effects of particle size and drying methods of corn on growth performance, digestibility and haematological and immunological characteristics of weaned piglets

Huang, Chi‐Kuang; Zang, Jianjun; Song, Peixia; Fan, Peixin; Chen, Jingshu; Liu, Dewen; He, Pingli; Ma, Xi

doi:10.1080/1745039x.2014.1002673

Cited by 33 publications

(34 citation statements)

References 30 publications

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“…The brown rice processing was performed following the methodology described by Huang et al (2015). The brown rice processing was performed following the methodology described by Huang et al (2015).…”

Section: Ingredients Sourcing and Particle Size Processingmentioning

confidence: 99%

“…Therefore, even if the digestibility of P in organic sources is influenced by brown rice particle size, the digestibility of P shows little difference among diets due to the minor contribution of organic P to TA B L E 5 Effects of brown rice particle size on the apparent total tract digestibility of energy and daily nitrogen and phosphorus balances for nursery pigs* the total absorption of P (Huang et al, 2015). However, differences among feed ingredients may exist and results from this experiment with brown rice should not be extrapolated to other ingredients.…”

Section: Itemmentioning

confidence: 99%

“…It has been reported that pigs fed ingredients with a finely ground grain may develop gastric ulcers (Wondra, Hancock, Behnke, Hines, & Stark, 1995) and development of ulcers is considered one of the major reasons for economic losses in the swine industry. Huang et al (2015) revealed that finely ground corn (320 μm) in diets increased the total white blood cells compared with coarsely ground corn (452 μm), suggesting that it may exert negative effects on the inflammatory response (Nemzek, Bolgos, Williams, & Remick, 2001). To further investigate the influence of particle size of corn on the systemic immune and development of piglets.…”

Section: The Ops Of Brown Ricementioning

confidence: 99%

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Effects of brown rice particle size on energy and nutrient digestibility in diets for young pigs and adult sows

Zhu

Dong

et al. 2018

Animal Science Journal

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The objective of this study was to evaluate the effects of brown rice particle size on the apparent total tract digestibility (ATTD) of energy and nutrients in diets fed to pigs at four different stages and determine the optimal particle size (OPS) of brown rice for young pigs and adult sows. Eighteen weanling piglets (initial body weight (BW):10.2 ± 0.4 kg), 18 growing barrows (initial BW: 35.6 ± 1.5 kg), 24 gestating sows (initial BW: 220 ± 2.8 kg), and 24 lactating sows (initial BW: 208 ± 3.8 kg) were allotted to 1 of 3 or 4 diets based on completely randomized design with six replicates per diet.Within each stage, brown rice-soybean meal diets were formulated, and the only difference among diets was the brown rice used was ground to the specified particle size.Each stage lasted 19 days, including 7 days for cage adaptation, 7 days for diet adaptation, and 5 days for total feces and urine collection. For weanling and growing pigs, the results showed that pigs fed brown rice milled to 600 μm had a greater ATTD of dry matter (DM), gross energy (GE), and crude protein (CP) than pigs fed brown rice ground to 800 μm. However, there was no improvement in the ATTD of energy and nutrients for pigs fed brown rice milled to 600 μm versus 400 μm. The concentration of nitrogen (N) in feces significantly reduced (p < 0.01) as brown rice particle size decreased from 800 to 400 μm. However, there were no differences in phosphorus (P) output and absorbed P among diets. For gestating and lactating sows, a reduction in particle size from 1,000 to 800 μm significantly improved (p < 0.01) the ATTD of DM, GE, and CP in diets. However, there was also no improvement in the ATTD of energy and nutrients for pigs fed brown rice milled from 800 to 400 μm. In conclusion, considering the energy required for milling and nutrient digestibility, milling brown rice to 600 and 800 μm are recommended in diets for young pigs and adult sows, respectively. The OPS of brown rice for pigs at different physiological stages should be considered to economically and accurately formulate diets.

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Section: Ingredients Sourcing and Particle Size Processingmentioning

confidence: 99%

Section: Itemmentioning

confidence: 99%

Section: The Ops Of Brown Ricementioning

confidence: 99%

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Effects of brown rice particle size on energy and nutrient digestibility in diets for young pigs and adult sows

Zhu

Dong

et al. 2018

Animal Science Journal

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“…Drying technology is the most widely used method in agriculture that can extend the safe storage period of postharvest corn (Khanali, Khakpour Giglou, & Rafiee, ). Traditionally, the majority corn in China are sun‐dried (Huang et al., ). Open‐sun drying has many advantages, including the limited dependence on specialist workers, low capital investment, no fuel demand, minimum maintenance needs, and no pollutant emission to the environment (Aghbashlo, Müller, Mobli, Madadlou, & Rafiee, ).…”

Section: Introductionmentioning

confidence: 99%

Development and Optimization of Cold Plasma Pretreatment for Drying on Corn Kernels

Chen

Han

et al. 2019

Journal of Food Science

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This study was conducted to optimize a process of cold plasma pretreatment for hot‐air drying on corn kernels. Effects of plasma pretreatment time (30, 40, 50 s), plasma pretreatment power (300, 400, 500 W) and drying temperature (37.5, 45, 52.5 °C) on drying time and drying rate during this process were investigated. Polynomial equations were established through a three‐factor and three‐level Box‐Behnken design and used to evaluate the optimal operational conditions for the drying process. The optimal pretreatment conditions were drying temperature at 52.5 °C, plasma pretreatment time of 50 s and plasma pretreatment power of 500 W, and the corresponding drying rate and drying time were 3.6163 (g/g h−1) and 1.29 hr, respectively. The AFM images showed that cold plasma pretreatment can change the topography of the treated surface with some micro‐holes, which explain how the plasma pretreatment can improve the drying process. Practical Application Cold plasma pretreatment can improve the efficiency of corn kernels drying. Furthermore, it has potential application for reducing energy consumption in drying. Cold plasma pretreatment could be potentially applied in grain drying.

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“…Similar results were observed by Giesemann et al [46], who reported that finishing pigs fed a corn-based diet with a particle size of 641 μm had an increased ATTD of DM, N, and GE compared with pigs fed a diet with a mean particle size of 1,500 μm. Likewise, a reduction in particle size from 900 to 300 μm in corn and sorghum improved the ATTD of GE [36, 47], and an improved ATTD of GE and ether extract was observed as the particle size of corn grain was reduced [48]. The use of pelleting in combination with grinding also may increase ATTD of DM, GE, and N [1].…”

Section: Particle Size Of Feed Ingredientsmentioning

confidence: 99%

Processing of ingredients and diets and effects on nutritional value for pigs

Rojas¹,

Stein

2017

J Animal Sci Biotechnol

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A conventional diet based on corn and soybean meal fed to pigs is usually provided in a mash form and in most cases, processing other than grinding and mixing is not used. However, due to the high cost of energy in pig diets, use of high fiber ingredients such as soybean hulls, distillers dried grains with solubles, and wheat middlings has increased. High fiber concentrations in the diet usually results in reduced energy and nutrient digestibility due to the low capacity of pigs to digest fiber, which negatively impacts growth performance and carcass composition of the pigs. Feed processing technologies such as changes in grinding procedures, expansion, extrusion, pelleting, use of enzymes or chemical treatments may, however, be used to solubilize some of the cellulose and hemicellulose fractions that form the cell wall of plants in the ingredients, and therefore, increase nutrient availability. This may have a positive effect on energy digestibility, and therefore, also on pig growth performance and carcass composition, but effects of different feed technologies on the nutritional value of feed ingredients and diets fed to pigs are not fully understood. It has however, been demonstrated that reduced particle size of cereal grains usually results in increased digestibility of energy, primarily due to increased digestibility of starch. Extrusion or expansion of ingredients or diets may also increase energy digestibility and it appears that the increase is greater in high fiber diets than in diets with lower concentrations of fiber. Chemical treatments have not consistently improved energy or nutrient digestibility, but a number of different enzymes may be used to increase the digestibility of phosphorus, calcium, or energy. Thus, there are several opportunities for using feed technology to improve the nutritional value of diets fed to pigs.

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Effects of particle size and drying methods of corn on growth performance, digestibility and haematological and immunological characteristics of weaned piglets

Cited by 33 publications

References 30 publications

Effects of brown rice particle size on energy and nutrient digestibility in diets for young pigs and adult sows

Effects of brown rice particle size on energy and nutrient digestibility in diets for young pigs and adult sows

Development and Optimization of Cold Plasma Pretreatment for Drying on Corn Kernels

Processing of ingredients and diets and effects on nutritional value for pigs

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