Interactive effects of calcium and top-dressed 25-hydroxy vitamin D3 on egg production, egg shell quality, and bones attributes in aged Lohmann LSL-lite layers

Kakhki, R. Akbari Moghaddam; Heuthorst, T; Mills, Alisha; Neijat, M.; Kiarie, E.

doi:10.3382/ps/pey446

Cited by 44 publications

(20 citation statements)

References 38 publications

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“…Liver crude fat content in birds fed the control diet (29.59%) was higher ( P < 0.001) than in birds fed FFF- diet (16.49%). The export of large amounts of protein and lipid into eggs during the laying period is a metabolic challenge for reproducing fowl ( Bain et al., 2016 , Akbari Moghaddam Kakhki., 2019a , Akbari Moghaddam Kakhki., 2019b ). Although none of the treatments surpassed the threshold (>35% liver crude fat) required to be classified as fatty liver hemorrhagic syndrome, the potential risk with feeding high energy diets is still a concern ( Squires and Leeson, 1988 , Robinson and Kiarie, 2019 ).…”

Section: Resultsmentioning

confidence: 99%

Effects of feeding broiler breeder hens a coextruded full-fat flaxseed and pulses mixture without or with multienzyme supplement

Thanabalan

Moats²,

Kiarie

2020

Poultry Science

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The effects of coextruded full-fat flaxseed and pulses ( FFF ; 1:1 wt/wt) mixture on n-3 polyunsaturated fatty acids ( PUFA ) enrichment in egg yolk, hepatic attributes, apparent retention ( AR ) of components, and ceca metabolites were evaluated in broiler breeder hens. The diets were as follows: 1) corn–soybean control, 2) control diet plus 18% FFF ( FFF− ), and 3) FFF plus enzyme supplement ( FFF+ ) containing galactanase, protease, mannanase, glucanase, xylanase, amylase, and cellulase activities. Twenty-six-week-old Cobb 500 broiler breeder hens were allocated to 30 identical cages (2 hens/cage) and given 1-week adaptation period. The 3 diets were assigned to 10 replicate cages based on postadaptation BW and fed based on breeder curve for 30 D. Excreta samples were collected from day 24 to 27 for determination of AR of components, and eggs were collected from day 28 to 30 for yolk polyunsaturated fatty acids analyses. On day 30, birds were weighed, killed via cervical dislocation, liver weighed, and stored for fat analyses. Ceca digesta samples were taken for concentration of short-chain fatty acids. Liver and yolk weights as well as total yolk FA were not influenced by diets ( P > 0.05). Control birds had lower yolk concentration of α-linolenic acid than birds fed either FFF− or FFF+ ( P < 0.01) corresponding to 7.5, 36.8, and 37.3 mg/g for the control, FFF−, and FFF+, respectively. Control birds also exhibited lower yolk concentration of docosahexaenoic acid ( P < 0.01). Control birds had higher hepatic concentration of crude fat and apparent retention of dry matter and crude protein compared with either the FFF− or FFF+ birds ( P < 0.05). Birds fed FFF- diet had lower ceca digesta concentration of lactic acid than control and FFF+ ( P < 0.05) birds. Results showed broiler breeder hens enriched egg yolk with n-3 polyunsaturated fatty acids without effects on the liver while the supplemental enzyme did not improve the utilization of FFF.

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Section: Resultsmentioning

confidence: 99%

Effects of feeding broiler breeder hens a coextruded full-fat flaxseed and pulses mixture without or with multienzyme supplement

Thanabalan

Moats²,

Kiarie

2020

Poultry Science

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“…Dietary Ca at 3.22, 4.10, and 2.38% at each period was sufficient to maintain the eggshell quality of hens throughout this study. Others had reported decreased eggshell thickness and breaking strength when fed 3% Ca in older Lohmann LSL-Lite layers aged 74 to 81 wk ( Akbari Moghaddam Kakhki et al., 2019 ), possibly due to Ca absorption being inefficient in aged laying hens ( Bronner, 1987 , Pelicia et al., 2009 ). Although 1,200 FTU phytase/kg in the NC diet increased SG, it did not increase the eggshell thickness or breaking strength relative to the NC diet.…”

Section: Discussionmentioning

confidence: 99%

Effects of phytase supplementation on eggshell and bone quality, and phosphorus and calcium digestibility in laying hens from 25 to 37 wk of age

2020

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Effects of dietary available phosphorus ( aP ) and Ca levels and an Escherichia coli 6-phytase supplementation were studied in Lohmann LSL-Lite hens from 25 to 37 wk of age. Eighty-four hens were used in a completely randomized design with 7 treatments. The treatments were a positive control ( PC ) diet with 0.45% aP, 3.70% Ca, and 0.16% Na from 25 to 28 wk and 0.38% aP, 3.73% Ca, and 0.15% Na from 29 to 37 wk; a negative control ( NC ) diet, similar to the PC diet, with 0.22% aP, 3.00% Ca, and 0.13% Na from 25 to 28 wk and 0.19% aP, 3.02% Ca, and 0.13% Na from 29 to 37 wk; the NC diets supplemented with phytase at 150 (NC + 150), 300 (NC + 300), 600 (NC + 600), or 1,200 (NC + 1,200) phytase unit ( FTU )/kg; and the PC diet supplemented with phytase at 1,200 (PC + 1,200) FTU/kg. Hen performance, eggshell, and bone quality were measured on a 4-wk basis. Bone breaking strength and ash and apparent ileal digestibility ( AID ) of P and Ca were determined at 37 wk. One- and 2-way ANOVA were conducted, and Tukey's range test was used to compare multiple means where P ≤ 0.05. No differences in hen performance, eggshell quality, bone breaking strength, bone ash, and P digestibility were observed between the PC and the NC treatments. The NC hens had lower cortical ( P < 0.001) and trabecular + medullary bone mineral density ( P = 0.004) and total bone mineral content ( P < 0.001) than the PC hens. The PC + 1,200 increased cortical bone mineral density ( P < 0.001). The reductions of aP and Ca in the NC diet were not deficient for performance but had a minor impact on bone mineralization. The NC + 600 and NC + 1,200 increased AID of P ( P = 0.024), and all phytase treatments except the NC + 150 increased AID of Ca ( P = 0.010) compared with the NC diet.

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“…At 42 WOA, birds were weighed and then palpated for tibia and keel bone sampling. Hens with a hard eggshell in the shell gland were chosen as described by Akbari Moghaddam Kakhki et al. (2018a) .…”

Section: Methodsmentioning

confidence: 99%

“…The left tibia sample dry weight, ash content, and ash concentration in epiphysis, medullary, and cortical subparts were measured in accordance with the followed by Akbari Moghaddam Kakhki et al. (2018a) .…”

Section: Methodsmentioning

confidence: 99%

n-3 fatty acids fed to ISA brown and Shaver white breeders and their female progeny during rearing: Impact on egg production, eggshell, and select bone attributes from 18 to 42 weeks of age

et al. 2020

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The impact of feeding sources of n-3 fatty acids ( FA ) to ISA brown and Shaver white breeders and their female offspring during rearing on egg production, eggshell, tibia, and keel bone attributes was examined. Breeders were fed Control ( CON ) or CON + 1% dried microalgae ( DMA : Aurantiochytrium limacinum ) as the source of docosahexaenoic acid or CON + 2.6% of a coextruded mixture of full-fat flaxseed ( FFF ) and pulses as a source of α-linolenic acid. Day-old offspring were fed 1) breeder CON-pullet CON ( CON-CON ), 2) breeder CON-pullet DMA ( CON-DMA ), 3) breeder CON-pullet FFF ( CON-FFF ), 4) breeder DMA-pullet CON ( DMA-CON ), 5) breeder DMA-pullet DMA ( DMA-DMA ), 6) breeder FFF-pullet CON ( FFF-CON ), and 7) breeder FFF-pullet FFF ( FFF-FFF ). At 18 wk of age ( WOA ), pullets were fed a common layer diet to 42 WOA for egg production and bone quality assessments. There was no ( P > 0.05) interaction between strains and diets and the main effect of diets on egg production, egg mass, and eggshell quality. There was an interaction ( P = 0.008) between strain and diet on egg weight ( EW ); however, the strain effect on EW ( P < 0.001) was such that ISA brown had heavier eggs than Shaver white. Shaver white had higher ( P < 0.001) eggshell %, eggshell, and tibia breaking strength ( BS ), as well as tibia ash concentration compared with ISA brown hens. In contrast, ISA brown hens exhibited heavier ( P < 0.05) tibia and keel bones. Feeding breeders DMA and pullets both sources of n-3 FA increased tibia medullary ash concentration compared with other diets ( P < 0.001). Shaver white hens showed greater decline in tibia BS (83.7 vs. 96.3%) and ash content (84.1 vs. 94.3%) than ISA brown hens from 18 to 42 WOA ( P < 0.05). Strain and diets exhibited independent effects on eggshell, tibia, and keel attributes. Provision of α-linolenic acid and docosahexaenoic acid to breeders and offspring improved tibia medullary ash concentration at 42 WOA.

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Interactive effects of calcium and top-dressed 25-hydroxy vitamin D3 on egg production, egg shell quality, and bones attributes in aged Lohmann LSL-lite layers

Cited by 44 publications

References 38 publications

Effects of feeding broiler breeder hens a coextruded full-fat flaxseed and pulses mixture without or with multienzyme supplement

Effects of feeding broiler breeder hens a coextruded full-fat flaxseed and pulses mixture without or with multienzyme supplement

Effects of phytase supplementation on eggshell and bone quality, and phosphorus and calcium digestibility in laying hens from 25 to 37 wk of age

n-3 fatty acids fed to ISA brown and Shaver white breeders and their female progeny during rearing: Impact on egg production, eggshell, and select bone attributes from 18 to 42 weeks of age

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