Effect of soy oil supplementation and protein level in laying hen diets on praecaecal nutrient digestibility, performance, reproductive performance, fatty acid composition of yolk fat, and on other egg quality parameters

Dänicke, Sven; Halle, Ingrid; Jeroch, H.; Böttcher, Wolfgang; Ahrens, Peggy; Zachmann, R.; Götze, Sigmar

doi:10.1002/(sici)1438-9312(200003)102:3<218::aid-ejlt218>3.0.co;2-f

Cited by 14 publications

(8 citation statements)

References 32 publications

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“…In harmony with the present results, Danicke et al (2000) examined the effects of added soy oil (0, 3.5, 7, 10.5 and 14%) and dietary protein level (13.2 and 16.3%) on precaecal nutrient digestibility in laying hens and found that digestibility of crude protein and amino acids were not affected by either protein content of the diet or by soy oil supplementation. The present results harmonize also with the findings obtained by Han and Thacker (2011), who evaluated the effects of feeding two dietary energy levels (11.81 and 11.39 MJ kgG 1 of ME referred to as high and Table 4: Nutrient digestibility of the experimental diets for 55 weeks old laying hens fed diets containing high nutrient densities Vet.…”

Section: ------------------------------------------------------------supporting

confidence: 78%

Productive Performance of Bovans White Laying Hens Fed High Nutrient Density Diets Under Egyptian Summer Conditions

Ismail¹,

El-Maa²,

Rabie³

et al. 2015

Asian J. of Animal and Veterinary Advances

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A 12-week study was conducted to evaluate the productive performance of Bovans White laying hens fed high-nutrient-density diets under Egyptian summer conditions. Two hundred hens were randomly assigned to five equal dietary treatments, five replications each. Birds were kept at community cages in an open-sided laying house, provided with a daily photoperiod of 16 h and managed similarly. A control diet was formulated (as fed basis) to contain a metabolizable energy of 2880 kcal kgG 1 , 17.40% crude protein, 4.35% Ca, 0.43% nonphytate P, 0.84% lysine, 0.41% methionine and 0.70% methionine plus cysteine. Four high nutrient density diets were also compounded to contain 102.5, 105, 107.5 and 110% of the nutrients present in the control diet, thus five mash diets were composed and used from 44-56 weeks of age. The criteria of response were feed intake, egg production, egg weight, egg mass, feed conversion, body weight change, egg components and certain traits of egg quality, nutrient digestibility and some blood plasma parameters. Feeding the high nutrient density diets exerted no positive effect on productive performance of hens, digestibility of nutrients (dry matter, organic matter, crude protein, ether extract, crude fiber, nitrogen-free extract and ash retention), some egg quality traits and most blood parameters examined but positively affected weight change, percent albumen, shell thickness, yolk index and Haugh units. It is concluded that increasing dietary nutrient density up to 110% of the recommended requirements of Bovans White laying hens does not improve their productive performance under Egyptian summer conditions.

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Section: ------------------------------------------------------------supporting

confidence: 78%

Productive Performance of Bovans White Laying Hens Fed High Nutrient Density Diets Under Egyptian Summer Conditions

Ismail¹,

El-Maa²,

Rabie³

et al. 2015

Asian J. of Animal and Veterinary Advances

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“…This improvement could be attributed to the influence of lecithin as a ready source of phospholipids, choline and essential fatty acids for growth and development of embryos. On the other hand, Danicke et al (2000) reported that level and source of dietary oils did not affect fertilized eggs, hatchability, and mortality of chicks. Data regarding the impact of lecithin on reproductive performance of breeding hens are scarce; however, results with other animal species are promising (Gunther 1996;Dumitru et al 2002).…”

Section: Discussionmentioning

confidence: 98%

“…On the other hand, Summers and Leeson (1981) and Donaldson and Ward (1988) found that lecithin had only a positive impact on the absorption of animal fats. Frthermore, Danicke et al (2000) observed that praecaecal crude fat and fatty acids digestibility were non-linearly improved by soybean oil addition. However, CP and amino acids digestibility was not affected by soybean oil, which is similar to the present findings, when no significant effects due to lipid treatments were shown on CP and CF and OM digestibilities (Table 5).…”

Section: Discussionmentioning

confidence: 99%

“…On the other hand, An et al (1997) observed that safflower phospholipids did not significantly affect weight of yolk (percentage) compared to safflower oil. Furthermore, Danicke et al (2000) found that the increase in egg weight due to soy oil addition was accompanied by a simultaneous increase in the proportion of albumen and a decrease of yolk. Along the same lines, Danicke and Halle (2002) concluded that weight of yolk and albumen were not significantly influenced by sources or inclusion level of lipids.…”

Section: Discussionmentioning

confidence: 99%

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Improving productive and reproductive performance of dual-purpose crossbred hens in the tropics by lecithin supplementation

Attia

Hussein

El-Din

et al. 2008

Trop Anim Health Prod

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In order to study the influence of lecithin and vegetable oils on improving productive and reproductive performance, egg quality, and metabolic profile of dual-purpose crossbred hens in the tropics, a total of 224 hens, 47-wk old, 112 each of Gimmizah and Silver Montazah strains were fed seven isonitrogenous diets. Experimental treatments consisted of feeding seven different diets to layers; four isocaloric diets containing either no added lipid (control), 3% vegetable oil mixture, 3% soy lecithin or 6% soy lecithin; and three high-energy level diets, containing an extra 3% vegetable oil mixture, 3% or 6% soy lecithin added to the control diet. Thus, the experimental design was factorial, consisting of seven lipid treatments by two strains of hens. Results indicate that 3% lecithin as an extra ME source, or feeding 11.72 MJ ME/kg diet containing the same level of lecithin, improved productive and reproductive performance of crossbred hens. Moreover, lecithin at 6% as an extra ME supplement significantly increased yolk percentage and improved Haugh unit score and yolk color, while increasing EE digestibility and plasma total lipids. Hen strain had a significant effect only on digestibility of OM, percentage liver and Haugh unit score, with the Gimmizah strain having higher values.

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“…The composition of hen diet has an effective factor on egg production (Khajali et al, 2008;Perez-Bonilla et al, 2012), egg weight (Whitehead et al, 1991, Zimmerman 1997Shim et al, 2013) and hatching characters (Danicke et al, 2000) in poultry.…”

Section: Introductionmentioning

confidence: 99%

Effects of Protein in Diet and Sex Ratio on Egg Production, Egg and Hatching Chick Weight, Fertility, Hatchability and Embryonal Mortality in Pheasants (Phasianus Colchicus)

Uğurlu

Akdağ

Teke

et al. 2017

Rev. Bras. Cienc. Avic.

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KeywordsEmbryonal mortality, hatchability, pheasant, protein levels, sex ratio.Submitted: November/2016 Approved: January/2017 ABSTRACTThis study was performed to investigate the effects of crude protein (CP) in diet and sex ratio on egg production, egg and hatching chick weight and hatchability traits in pheasants (Phasianus Colchicus). In this study, the treatment groups were constructed as 15% CP-5:1; 15% CP-7:1; 18% CP-5:1; 18% CP-7:1 for CP and sex (male:female) ratio respectively. The eggs were obtained from 48 weeks old pheasant. In this study, it was determined that there was positive effective on egg production, egg and hatching weight and hatchability of fertile eggs (HFE) for 18% CP. In contrast, fertility (FR) (p<0.05) and hatchability rate of total eggs (HR) (p>0.05), EPEM (p>0.05) and MPEM (p>0.05) tended to decrease with increasing CP. It was found that there was egg production, egg (p>0.05) and hatching weight (p>0.05), FR (p>0.05), HR (p>0.05) and HFE (p>0.05) increased with increasing female for sex ratio. In terms of embryonic mortality, the EPEM (p>0.05) and LPEM (p>0.05) rate decreased with increasing female. For protein levels × sex ratio, it was found that hatchability traits were adversely affected for 15% CP-1:7. Also, it was determined that the lowest EPEM, MPEM and LPEM were determined for 7:1 in 18% CP group. Based on these results, to improve hatchability traits and a lower embryonic mortality rate, it may be beneficial to use 15% CP-5:1 or 18% CP-7:1 for pheasant breeding.

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Effect of soy oil supplementation and protein level in laying hen diets on praecaecal nutrient digestibility, performance, reproductive performance, fatty acid composition of yolk fat, and on other egg quality parameters

Cited by 14 publications

References 32 publications

Productive Performance of Bovans White Laying Hens Fed High Nutrient Density Diets Under Egyptian Summer Conditions

Productive Performance of Bovans White Laying Hens Fed High Nutrient Density Diets Under Egyptian Summer Conditions

Improving productive and reproductive performance of dual-purpose crossbred hens in the tropics by lecithin supplementation

Effects of Protein in Diet and Sex Ratio on Egg Production, Egg and Hatching Chick Weight, Fertility, Hatchability and Embryonal Mortality in Pheasants (Phasianus Colchicus)

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