Evaluation of dried papaya pomace meal in laying hen diets

Abstract

In the search for alternative feed resources for laying hens, papaya pomace is available as industrial by‐product but information on its nutritive value is lacking. Dried papaya pomace was included in a common laying hen diet at 0%, 2.5%, 5% and 7.5% to evaluate its effect on egg production performance, egg quality and general health parameters in Bovan brown layers. For every inclusion level, three cages with ten 20‐week‐old layers were used, making a total of 120 hens. The effect of dried papaya pomace inclusion on egg production, egg quality and general health parameters was evaluated. Dried papaya pomace inclusion improved egg production and laying by 6.15% and 17% respectively, while it significantly decreased feed conversion ratio by 7.5%. Eggshell weight, thickness and strength of PP5 were higher than the control by 0.3 g, 0.8 mm and 0.43 kg/cm2, respectively. There was a significant improvement in albumin weight (by 1.5 g/L), albumin height (2.1 mm), yolk weight (0.4 g/L), yolk height (0.4 mm), yolk colour (4.4 points) and Haugh unit (8 points) due to PP5 treatment. Inclusion of papaya pomace at a level of 7.5% of layers diet had negative effect on Egg production, feed conversion ratio and interior and exterior egg quality traits. Inclusion of papaya pomace affected significantly serum total cholesterol, serum triglyceride, serum low density lipoprotein, serum high density lipoprotein, aspartate aminotransferase, alanine aminotransferase and white blood cell count. However, all blood traits of the experimental animals were within the normal ranges reported for layers. Inclusion of papaya pomace in 5% of layers commercial diets improves egg production and quality without negative impact on health while decreasing feeding cost.

Effect of papaya (Carica papaya) seed as phytogenic feed additives on egg performance, egg quality and blood serum biochemical constituents of layer hens

“…This finding disagrees with Tamiru et al. (2021), who reported that 20–32 weeks‐age layer chickens fed papaya pomace (seeds, peels and pulps) at 2.5%, 5% and 7.5% inclusion levels showed no effect on feed DM intake. According to Salla et al.…”

“…(2018) revealed that the flavonoid components (myricetin and kaempferol) contained in natural plant feed additives had an estrogenic activity‐inducing effect through regulating the hypothalamic gonadal axis of laying chicken. Previous studies employing papaya pomace, flaxseeds and fenugreek seeds for layers have confirmed this hypothesis (Saleh et al., 2019; Tamiru et al., 2021). The highest egg mass was recorded in the PFA of papaya seed at 15 g/kg group hens compared with 5 and 10 g/kg group hens.…”

Effect of papaya leaf extract on growth performance, carcass characteristics, meat quality and serum biochemistry of broiler chickens

“…Several authors have also reported same finding regarding the effect of FCR when supplemented phytogenic substances in the diet of broiler chickens (Adegbenro et al, 2017;Sugiharto et al, 2020). On the other hands, some authors observed that the supplementation of diet with inclusion of alone or combination papaya leaf and seed meal mixture significantly improved FCR in broiler chickens (Onyimonyi and Ernest, 2009;Oloruntola et al, 2020) and in laying hens (Tamiru et al, 2021), which opposite with the present findings. The performance of broiler chickens was also evaluated in terms of broiler production efficiency factor (BPEF), which includes average body weight gain divided by FCR with multiplied 100.…”

Egg production and blood cholesterol of layers fed after adding fragrant pandan leaf flour (Pandanus amarylifolius Roxb.)

“…The average blood cholesterol in this study is 95.76 -109.47 mg/dl, blood LDL is 30.98 -34.84 (mg/dl) and blood HDL is 60.95 -70.10 (mg/dl). Research on laying hens fed with papaya pomace in dry form resulted in blood cholesterol of 103-123 (mg/dl), HDL 44-54 (mg/dl), LDL 91-119 (mg/dl) (Tamiru et al, 2021). In a different study, the cholesterol concentration obtained ranged from 133.75-173.75 mg/dl (Badaruddin et al 2021).…”

“…Some poultry expert researchers developed local products of non-conventional feed ingredients, such as additives, and local raw materials mixed in poultry feed. Local raw materials are used depending on the location, such as cottonseeds, sunflower seeds, and pumpkin seeds (Kasapidou, Sossidou, and Mitlianga 2015;Lira et al, 2009;Tamiru et al, 2021).…”