Choline Supplementation in the Diets of Aged White Leghorn Hens Grouped According to Body Weight

Ruiz, N.; Miles, R. D.; Wilson, H. R.; Harms, R. H.

doi:10.3382/ps.0621028

Cited by 12 publications

(4 citation statements)

References 17 publications

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“…The reduction of fat with the choline supplementation was found by Ruiz et al (1983), who reported that the liver lipid content was significantly higher in extra heavy birds fed the basal diet with no supplemental choline when compared with the average liver lipid content of extra heavy birds fed diets supplemented with choline.…”

Section: Betaine and Choline Administered In Ovomentioning

confidence: 86%

“…The dietary requirement for choline in young chickens and turkey poults as a growth promoter was demonstrated by several authors (reviewed in Ruiz et al, 1983). Conversely, in a study conducted by Blair et al (1986) has been observed that choline supplementation did not increase weight gain or feed efficiency for pullets from 8 to 20 weeks of age.…”

Section: Betaine and Choline Administered In Ovomentioning

confidence: 97%

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Effects of inOvoAdministration of Betaine and Choline on Hatchability Results, Growth and Carcass Characteristics and Immune Response of Broiler Chickens

Gholami

Qotbi

Seidavi

et al. 2015

Italian Journal of Animal Science

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The effect of in ovo administration of different levels of betaine and choline on egg hatchability, immune response, growth and carcass traits of broiler chickens was studied. Four thousand hatching eggs from Ross 308 broiler breeder layers, weighed individually, were incubated for 21 days in a commercial hatchery. At 12 th day of incubation, 3456 fertilized eggs were randomly divided into 8 experimental groups of 3 replicates each (144 eggs per replicate): negative control (NC) -not injected; positive control (PC) -injected with 0.5 mL deionized water; Bet 0.25 -injected with 0.5 mL deionized water+0.25 mg soluble betaine; Bet 0.375 -injected with 0.5 mL deionized water+0.375 mg soluble betaine; Bet 0.50 -injected with 0.5 mL deionized water+0.50 mg soluble betaine; Chol 0.25 -injected with 0.5 mL deionized water+0.25 mg soluble choline; Chol 0.375 -injected with 0.5 mL deionized water+0.375 mg soluble choline; Chol 0.50 -injected with 0.5 mL deionized water+0.50 mg soluble choline. Among the hatched chickens, 360 males were randomly chosen (45 for each group) and were grown up to 42 nd day of age. The embryo mortality, pecked eggs, infected eggs and hatchability percentages were similar among the experimental groups. The betaine and choline treatments improved hatching weight and final weight of chickens, while reduced feed conversion ratio and abdominal fat percentage. No effect on carcass yield, and breast muscle, leg and wings percentages, as well as on immunoglobulin M (IgM), G (IgG), and total antibody (IgT) titers was observed. The treatments had little effect on internal organs.

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Section: Betaine and Choline Administered In Ovomentioning

confidence: 86%

Section: Betaine and Choline Administered In Ovomentioning

confidence: 97%

Effects of inOvoAdministration of Betaine and Choline on Hatchability Results, Growth and Carcass Characteristics and Immune Response of Broiler Chickens

Gholami

Qotbi

Seidavi

et al. 2015

Italian Journal of Animal Science

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“…Moreover, Gous and Cherry (2004) reported that the light hens reached sexual maturity after the heavy hens. Hens with lighter LBW produce lighter eggs, intake less feed per day, and more efficiently to convert feed to egg mass in comparison with heavier hens (Ruiz et al, 1983 andSummers andLeeson, 1983). However, Nofal and Hassan (2004) found that, Mamourah and Gimmizah large hens showed significantly lower production than that of the medium and small hens.…”

Section: Resultsmentioning

confidence: 99%

Effect of Inclusion of Sugar Beet Pulp in the Diets on the Performance and Egg Quality of Gimmizah Laying Hens

Emam

Wahed

2020

Egyptian Journal of Nutrition and Feeds

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his research was conducted to study the effect of inclusion of sugar beet pulp (SBP) in the diets on the performance of Gimmizah laying hens during the period from 9 to 27 weeks of age. Hens were previously fed with starter diets from the beginning of the 3 weeks up to 8 weeks, and then hens fed in the present study on grower diets from the beginning of 9 up to 19 weeks, pre lay diets from the beginning of 20 up to 23 weeks and layer diets from the beginning of 24 up to 27 weeks. At the beginning of 9 weeks, a total of 180 females were continue feeding on the same treatments (which its fed in the starter period), which, consisted of five levels of SBP (0, 5, 10, 15 and 20% SBP) until 27 weeks (five treatments/four replicates (9 pullets/ replicate)). Hens fed diet containing 5% SBP had significantly higher live body weight (LBW) at the beginning of 9 weeks, performance index (during the period from 9 to 19 weeks) and recorded better values of feed conversion ratio (FC), crude protein conversion (CPC) and caloric conversion ratio (CCR) during the period from 9 to 19 weeks. Birds fed the control diet had higher LBW at 19 weeks and body weight gain, during the period from 9 to 19 weeks. Hens fed diet containing 10% SBP consumed significantly higher feed intake (FI), during the period from 9 to 19 weeks. Also, hens fed 10% SBP reached to sexual maturity earlier than the other treatments (the early in age at sexual maturity is coincided with a significant increase of average egg number (EN) per hen and laying rate% during the period from day of laying first egg until 23 weeks). Hens fed diet containing 20% SBP had significantly higher values of egg weight and FI, and the lower values were recorded with the hens fed diet containing 0.0% SBP during the period from 24 to 27 weeks of age. Gimmizah laying hens fed diet containing 0.0% SBP had better values of CPC and CCR during the period from 24 to 27 weeks of age, but, the differences between 0, 5, 10 and 15% SBP were not significant. The worst corresponding values of CPC and CCR were recorded with the hens fed diet containing 20% SBP during the period from 24 to 27 weeks of age. Feeding different levels of SBP insignificantly affected EN, egg production, FC and egg quality during the period from 24 to 27 weeks of age. It could concluded that, SBP could be used at a rate of 10% in the growing (9 to 19 weeks), pre-lay (20 to 23 weeks) and layer (24 to 27 weeks) diets of Gimmizah laying hens without any adverse effects on the pullet or hen performance and egg quality. But, the inclusion of SBP at 20% in the diet resulted in poor performance.

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“…Body weight at onset of egg production and throughout the production year in uences the e ciency of egg production. Birds with lighter body weights produce lighter eggs [24], consume less feed per day, and convert feed to egg mass more e ciently [24,25] in comparison with heavier birds. With the South African White Leghorns it was found that the optimum body weight at sexual maturity for egg production seems to range between 1•59 to 1•82 kg.…”

Section: Body Weight and Body Weight Of Bovans Brown Layersmentioning

confidence: 99%

Performance and Economic Efficiency of Bovans Brown Laying Hens Supplemented With Effective Microorganisms

Yitbarek

2022

Preprint

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Background Effective Microorganisms is the mixed cell culture composed of photosynthetic bacteria, actinomyces, yeast, lactobacillus and fungi which improves growth rate, feed efficiency, egg production and increases the health status of poultry. The experiment was conducted to evaluate the economic efficiency of effective microorganism’s supplementation to Bovans Brown laying hens. Results The result revealed that layers fed in T4 (124.07g) was significantly higher (P < 0.05) than T1 (119.67g), T2 (122.36g) and T3 (122.37g). The total egg production during the experimental period (week 20 to week 67) was 241,242,249 and 268 for T1, T2, T3 and T4, respectively. The highest (P < 0.05) feed conversion ratio was observed in T4 (2.23). The total feed cost was T1 > T2 > T3 > T4. The highest net revenue was obtained from T4 and the lowest was T1 and T2. The economic efficiency was ranged from 0.66 to 0.90 and the feed cost ratio was ranged from 1.66 to 1.90 ETB. Conclusion Therefore, from this study it can be concluded that supplementation of EM with drinking water and in feed (T4) had the best production performance indices among the treatment groups.

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Choline Supplementation in the Diets of Aged White Leghorn Hens Grouped According to Body Weight

Cited by 12 publications

References 17 publications

Effects of inOvoAdministration of Betaine and Choline on Hatchability Results, Growth and Carcass Characteristics and Immune Response of Broiler Chickens

Effects of inOvoAdministration of Betaine and Choline on Hatchability Results, Growth and Carcass Characteristics and Immune Response of Broiler Chickens

Effect of Inclusion of Sugar Beet Pulp in the Diets on the Performance and Egg Quality of Gimmizah Laying Hens

Performance and Economic Efficiency of Bovans Brown Laying Hens Supplemented With Effective Microorganisms

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