Work

Using a Multi‐Attribute Decision‐Making Method to Evaluate the Effect of in Ovo Injection of Valine and Tryptophan on the Growth Performance of Broiler Chickens

Year: 2025

Type: article

Abstract: BACKGROUND: Eggs provide limited energy and essential nutrients necessary for chicken embryo growth. Intra-egg nutrition serves as an effective approach to address initial growth constraints during the embryonic stage and post-hatching. OBJECTIVE: This study aimed to identify the optimal levels of L-valine or L-tryptophan amino acids administered via in ovo injection to improve the growth performance of Ross 308 broiler chickens. METHODS: Five hundred fertile eggs were weighed and incubated. On Day 14, the fertile eggs were divided into five groups, receiving injections of either 0.95% (Val-1) or 1.05% (Val-2) L-valine, 0.55% (Trp-1) or 0.60% (Trp-2) L-tryptophan, or distilled water (control) at a volume of 0.5 mL. Nine performance criteria, including hatchability, body weight, feed intake, feed efficiency, livability, production index, villus length to crypt depth, Lactobacillus and Escherichia coli populations were assessed as least-square means. RESULTS: A multiple-attribute decision-making (MADM) method, utilising the technique for order of preference similarity to the ideal solution (TOPSIS), was employed to rank the in ovo amino acid treatments. The treatments yielded the following scores: control (0.7703), Val-1 (0.4759), Val-2 (0.4161), Trp-1 (0.7761) and Trp-2(0.1509). CONCLUSIONS: The findings indicate that injecting 0.55% L-tryptophan on Day 14 of incubation is a beneficial strategy to enhance growth performance in broiler chickens.

Source: Veterinary Medicine and Science

DOI: 10.1002/vms3.70423

Authors: Marziyeh Ebrahimi, Hoda Javaheri Barfourooshi, Seyed Abdullah Hosseini, Amir Hossein Alizadeh‐Ghamsari

Institutions: University of Tabriz, Agricultural Research & Education Organization

Language: English

Topic: Animal Nutrition and Physiology

Subfield: Animal Science and Zoology

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $3,880