Effect of Forced Molting on body characteristics and post-molting egg production performance of Layers in Quetta, Pakistan

Rafeeq, Majed; Rashid, Najat; Awan, Muhammad Amer; Tariq, MM; Farahavar, Abbas; Ahmed, Zahoor; Taj, Imran

doi:10.1590/s1516-635x2013000400009

Cited by 8 publications

(7 citation statements)

References 22 publications

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“…[ 27 ] reported that the average weight of Pengging duck egg was 63.66 g at a feed consumption of 160 g. The ducks used in their study were old or pre-molting; for this reason, their production performance was low. In old age, the ovarium and oviduct weight decreases [ 28 ], the levels of hormones required for the process of egg formation decrease, and egg production becomes low [ 29 ].…”

Section: Discussionmentioning

confidence: 99%

Effects of synbiotics preparations added to Pengging duck diets on egg production and egg quality and hematological traits

et al. 2022

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Background and Aim: Duck eggs have high cholesterol levels; inulin addition combined with probiotic is known in several studies to lower cholesterol, while maintaining egg production capacity and blood hematology. This study aimed to investigate the effect of the addition of synbiotic preparations on egg production, egg quality, and hematology of Pengging ducks. Materials and Methods: A total of 200 female Pengging ducks aged 75 weeks (late production phase) and weighing 1467±90.87 g were maintained in litter cages, each measuring 1×1 ducks. The treatment included the addition of synbiotics between the inulin of gembili tuber (Dioscorea esculenta L. and Lactobacillus plantarum Ina CC B76) as follows: T0=control feed ("farmer feed"), T1=control feed+synbiotics 1 mL/100 g, T2=control feed+synbiotics 1.5 mL/g, and T3=control feed+synbiotics 2 mL/100 g in the feed. A completely randomized design was used in this study. The production performance, physical and chemical qualities of eggs, and hematological parameters of Pengging ducks were evaluated. Results: The addition of synbiotics had no significant impact on the production performance, physical and chemical qualities of eggs, and hematological parameters (p>0.05), except for the egg yolk cholesterol content. The cholesterol content decreased significantly (p<0.05) with T2 and T3 treatments, but they had no significant effect (p>0.05). A significant decrease (p<0.01) in cholesterol levels was observed when the synbiotic dose was given at 1.5 ml/100 g feed (T2). However, there was no further decrease in cholesterol level when the synbiotic dose was increased to 2 ml/100g fed (T3). Conclusion: The addition of synbiotics preparations at 1.5 mL/100 g reduced the cholesterol content but did not improve egg production, egg physical quality, and hematology of Pengging ducks.

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Section: Discussionmentioning

confidence: 99%

Effects of synbiotics preparations added to Pengging duck diets on egg production and egg quality and hematological traits

et al. 2022

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“…Pilaski (1972) reported in his research that Hb levels increased in hen from 9.7 g / dL to 9.8 g / dL, 11.0 g / dL, and 11.7 g / dL, in weeks 3, 6, 10, and 18 of age. On the other hand, in Leghorn females, the Hb content was 7.72 to 8.34 g / dL of blood at 11 weeks of age (Rafeeq et al, 2013). However, it has been shown that the amount of Hb varies with the season, with the lowest values being recorded in late summer and the highest in winter (Washburn, 1968).…”

Section: Evolution Of Hbmentioning

confidence: 92%

Evolution of some Haematological Parameters during the Process of Spontaneous Moult in Hy-Line Brown Hens

GENES¹,

GURĂU²,

CREȚU³

et al. 2022

BUASVMCN-VM

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The purpose of this paper was to find out the evolution of the main haematological parameters in Hy-Line var. Brown hens raised in industrial system, during a natural moult process. The process of spontaneous moult started towards the end of the laying cycle (63 weeks of age) and lasted about seven weeks. Two groups were set up for monitoring: a control group of hens that did not show signs of moult and an experimental group of spontaneously moulted hens. Blood was sampled weekly, from the moment of observing the onset of moult, to the complete re-dressing with feathers, respectively a period of seven weeks. Haematological parameters showed a specific dynamic during this process. This dynamic is dominated by a decrease in red blood cells, packed cell volume and haemoglobin (P<0.05), on the one hand, and a decrease in the white cell number and in the percentage of lymphocytes (P<0.05) on the other. These changes take place predominantly in the first three weeks of the moult period. In the next period of the process, the modified haematological parameters return to the values comparable to those of the control (P > 0.05).

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“…In a commercial poultry production system, profit can be attained by minimizing feed cost which accounts for about 60 -70% of the total cost of production (Adegbenro et al, 2012). The recent increase in the price of inputs (feed and chicks) adversely affected layer farming at a local level (Rafeeq et al, 2013). Al-Khalifa and Ragheb (2013) demonstrated that utilizing strains that produce brown eggs with high quality is essential for producers to improve their production efficiency, reduce their costs and be able to improve profitability and compete with the imported products in terms of price and quality.…”

Section: Introductionmentioning

confidence: 99%

Effect of Layer Breeds on the Productivity and Profitability of Layer Farms under Egyptian Condition

hamed

Hamdy

2022

Benha Veterinary Medical Journal

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This study was carried out during the period extended from the year 2019 to the year 2021 on four-layer breeds (Lohmann (LB), ISA Brown, Hy-Line W-36, and Hy-Line Brown) of the layer farms in EL-Menofia governorate, the data were collected from the accurate health and production records and, by using the structured questionnaires methods. This study aims to determine and highlight the effect of different layer breeds on the productivity and profitability of layer farms under Egyptian condition, also it indicated that the layer breed is the major factor that can affect the egg production and net profit of layer farms, This study concluded that the egg production significantly differed among the layer breeds it was the highest for ISA Brown breed (35603.97 eggs/100 hens/cycle), while it was the lowest for Hy-Line Brown breed (25368.37 eggs/100 hens /cycle), also the total return and net profit differed significantly among the layer breeds and they were the highest for ISA brown breed (49604.26 and 6426.18 EGP/100 hens, respectively), while they were the lowest for Hy-Line Brown breed (35859.55 and 497.79 EGP/100 hens, respectively). Finally, we concluded that the ISA Brown breed is the most profitable breed to be reared in the layer farms.

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Effect of Forced Molting on body characteristics and post-molting egg production performance of Layers in Quetta, Pakistan

Cited by 8 publications

References 22 publications

Effects of synbiotics preparations added to Pengging duck diets on egg production and egg quality and hematological traits

Effects of synbiotics preparations added to Pengging duck diets on egg production and egg quality and hematological traits

Evolution of some Haematological Parameters during the Process of Spontaneous Moult in Hy-Line Brown Hens

Effect of Layer Breeds on the Productivity and Profitability of Layer Farms under Egyptian Condition

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