Hulless Barley in Diets for Weanling Pigs

Newman, C. W.; Thomas, O. O.; Eslick, R. F.

doi:10.2527/jas1968.274981x

Cited by 16 publications

(2 citation statements)

References 10 publications

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“…Another experiment also found that growth performance was not different for growing pigs fed diets that contained hulled or hull-less barley when the diets were made isocaloric (DE/kg) with added fat (Harper et al, 2004). However, in different experiments where the diets with hulled or hull-less barley were not made isocaloric with fat, weanling and growing pigs fed the diets that contained hull-less barley had greater growth performance (Gill et al, 1966;Newman et al, 1968;Thacker et al, 1988) and greater energy digestibility (Mitchall et al, 1976;Bhatty et al, 1979) than pigs fed the diets that contained hulled barley because of the greater DE per kilogram in hull-less barley.…”

Section: Discussionmentioning

confidence: 98%

Hulled and hull-less barley grains with the genetic trait for low-phytic acid increased the apparent total-tract digestibility of phosphorus and calcium in diets for young swine1

Veum

Raboy²

2016

Journal of Animal Science

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A 35-d experiment was conducted using 63 crossbred pigs (35 barrows and 28 gilts) with an initial average BW of 7.0 kg and age of 28 d to evaluate the efficacy of the low-phytic acid (LPA) genetic trait in hulled or hull-less barley in isocaloric diets. Hulled barleys were the normal barley (NB) cultivar Harrington and the near-isogenic LPA mutant 955 (M955) with P availabilities of 36 and 95%, respectively. Hull-less lines were produced by crossing NB and the LPA mutant 422 line with a hull-less line, producing hull-less NB (HNB) and hull-less mutant 422 (HM422) with P availabilities of 41 and 66%, respectively. Pigs were in individual metabolism cages or pens for Phase 1 (d 0 to 14) and Phase 2 (d 14 to 35). Diets defined as NB, HNB, HM422, or M955 with no added inorganic P (iP) had available P (aP) concentrations of 0.27, 0.28, 0.35, and 0.40% for Phase 1 and 0.15, 0.17, 0.23, and 0.31% for Phase 2, respectively. Only diet M955 was adequate in aP. Therefore, iP was added to the P-deficient diets to make diets NB + iP, HNB + iP, and HM422 + iP with aP equal to that in diet M955. Overall (d 0 to 35), ADG and G:F were greater ( < 0.01) for pigs fed diet M955 or the diets with added iP than for pigs fed the NB diet. Serum tartrate-resistant acid phosphatase activity on d 34 was greater ( < 0.01) for pigs fed the NB or HNB diets than for pigs fed the other diets. Bone breaking strength and P absorption (g/d) were greater ( < 0.01) for pigs fed diet M955 or the diets with iP than for pigs fed the NB or HNB diets. Pigs fed diet M955 absorbed greater ( < 0.01) percentages of P and Ca and had less ( < 0.01) fecal excretion of P (g/d and %) and Ca (%) than pigs fed the other diets. In conclusion, the LPA genetic trait was effective in hulled and hull-less barley in isocaloric diets fed to young pigs. Pigs fed the diet with LPA M955 consumed 31% less P and excreted 78% less fecal P and 30% less fecal Ca than pigs fed the diet with NB + iP that was equal to diet M955 in aP. Therefore, LPA barley, especially M955 with 95% aP, will reduce the use of iP in swine diets, reduce P pollution from swine manure, and support the goal of achieving global P sustainability.

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Section: Discussionmentioning

confidence: 98%

Hulled and hull-less barley grains with the genetic trait for low-phytic acid increased the apparent total-tract digestibility of phosphorus and calcium in diets for young swine1

Veum

Raboy²

2016

Journal of Animal Science

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“…The genetic removal of hulls from barley and the production of hull-less varieties has been shown to effectively improve the feeding value of barley. Most hull-less varieties are superior to isogenic hulled varieties for growing-finishing and finishing swine (Joseph 1924;Gill et al 1966;Newman et al 1968;Newman and Eslick 1970;Newman et al 1980). Hull-less barley contains more digestible energy than its hulled counterpart, 3295 vs. 3133 kcallkg (Mitchell et al 1976) and 3398 vs 2962 kcallkg (Bhatty et al 1979).…”

Section: Barleymentioning

confidence: 99%

Pork Production Systems

Maner¹,

Harris²

1991

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Pathogens SWINE FEED ~~PORK FacilitiesSchedule Labor Explanation of FrontispiecePork production is accomplished by the synchronization and conversion of swine breeding stock and feed resources minimizing antagonistic effects of weather and pathogens. Producers and researchers have developed systems of facilities and labor coordinated with appropriate scheduling of management and husbandry practices to support this conversion and to counteract the negative forces. The objective is efficient and, thus, profitable utilization of swine, feed, facility, labor, and capital resources to obtain nutritious lean products for the consumer. This book strives to provide the current biological knowledge and principles to support the design and implementation of improved systems of the future.

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Breeding Naked Barley for Food, Feed, and Malt

Meints

Hayes

2019

Plant Breeding Reviews

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Hulless Barley in Diets for Weanling Pigs

Cited by 16 publications

References 10 publications

Hulled and hull-less barley grains with the genetic trait for low-phytic acid increased the apparent total-tract digestibility of phosphorus and calcium in diets for young swine1

Hulled and hull-less barley grains with the genetic trait for low-phytic acid increased the apparent total-tract digestibility of phosphorus and calcium in diets for young swine1

Pork Production Systems

Breeding Naked Barley for Food, Feed, and Malt

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