Growth performance, carcass characteristics, meat quality and serum profile of broiler chicks fed on housefly maggot meal as a replacement of soybean meal

Abstract An experiment was conducted on 240 one-day old male (Ross308) chicken to the effect of substitution of dried mealworm (Tenebrio molitor) with soybean meal on growth performance and carcass characteristics broiler chicks. Chicks fed in a completely randomized design with 4 replicate cages (12 birds per cage). Five dietary treatments used: 1- Control treatment: Basal diet based on corn-soybean meal without adding dried mealworm, 2- Replacement of 5% dried mealworm with soybean meal in the base diet, 3- Replacement of 10% dried mealworm with soybean meal in the base diet, 4- Replacement of 15% dried mealworm with soybean meal in the base diet and 5- Replacement of 20% dried mealworm with soybean meal in the base diet. The results of the experiment showed that 3rd and 4th treatments with a substitution of 10 and 15 percent showed a higher mean weight gain and a daily gain, but their feed intake was lower comparing other treatments, and finally, the feed conversion ratio showed a significant decrease with respect to control treatment using these replacement levels. At 21 and 42 days of age, carcass yield and relative weight of the breasts showed significant increases in treatments 3 and 4, and other characteristics of chicken carcasses were not affected by the test treatments. The experiment showed that replacing soybean meal with 10% and 15% worm powder significantly improved the performance of broiler chickens, but no significant difference was found between the two levels.

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Effects of concentrates rich in by-products on growth performance, carcass characteristics and meat quality traits of light lambs

Animal Production Science ◽

10.1071/an17798 ◽

2019 ◽

Vol 59 (3) ◽

pp. 593 ◽

Cited By ~ 1

Author(s):

C. Avilés Ramírez ◽

F. Peña Blanco ◽

A. Horcada Ibáñez ◽

N. Núñez Sánchez ◽

F. Requena Domenech ◽

...

Keyword(s):

Growth Performance ◽

Meat Quality ◽

Soybean Meal ◽

Carcass Characteristics ◽

Quality Traits ◽

Meat Quality Traits ◽

Alternative Ingredients ◽

Camelina Meal ◽

Feedlot Lambs ◽

By Products

The effects of feeding concentrates with alternative ingredients to cereal and soybean meal on growth performance, carcass characteristics and meat quality traits of feedlot lambs were studied. A total of 105 non-castrated male lambs were randomly assigned to one of three treatments (5 replicates per treatment): Control (CON, similar to commercial concentrates), Camelina (CAM, where camelina meal replaced 50% of the crude protein from the soybean meal in the CON concentrate), and Fibrous (FIB, concentrate without cereals and soybean meal, with camelina meal in addition to several by-products, and 20% less energy). The CAM treatment performed as well as the CON one. The FIB treatment increased feed conversion rate and tended to improve the redness and the oxidative stability. The CAM and FIB were economically more favourable. We found that a concentrate for feedlot lambs based on alternative ingredients, including several by-products, could be a feasible alternative to typical cereal-soybean meal-based concentrates.

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Effect of expanded diets on growth performance, meat quality and carcass characteristics in finishing pigs

Indian Journal of Animal Research ◽

10.18805/ijar.v0iof.8498 ◽

2017 ◽

Author(s):

Xin Jian Lei ◽

Jun Bae ◽

Ju Lee ◽

Sang Lee ◽

In Kim

Keyword(s):

Growth Performance ◽

Meat Quality ◽

Soybean Meal ◽

Feed Intake ◽

Carcass Characteristics ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Finishing Pigs ◽

Feed Conversion ◽

Daily Gain

The objective of the study was to evaluate the effects of expanded diets on growth performance, meat quality, and carcass characteristics in finishing pigs. A total of 80 finishing pigs [(Landrace × Yorkshire) × Duroc] were randomly allotted to two dietary treatments: 1) unexpanded corn-soybean meal diets; 2) expanded corn-soybean meal diets. Each treatment consisted of ten replicate pens with four pigs (2 gilts and 2 barrows) per pen. There were no differences in daily feed intake and daily gain throughout the experiment (P less than 0.05). However, expanded diets decreased feed conversion ratio compared with unexpanded diets (P less than 0.05). Expanded diets had no effect on carcass characteristics and meat quality with the exception of increased sensory evaluation (color) of meat compared with unexpanded diets (P less than 0.05). In conclusion, expanded diets can improve feed conversion ratio but have no effect on daily gain and daily feed intake and sensory evaluation of meat color.

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