| Title: |
Effect of dietary supplementation with rumen-protected amino acids, lysine and methionine, on the performance of Comisana ewes and on the growth of their lambs |
| Authors: |
Giulia Grassi; Paola Di Gregorio; Giambattista Capasso; Andrea Rando; Anna Maria Perna |
| Contributors: |
Grassi, Giulia; Di Gregorio, Paola; Capasso, Giambattista; Rando, Andrea; Perna, Anna Maria |
| Publication Year: |
2024 |
| Collection: |
Università degli Studi della Basilicata: CINECA IRIS |
| Subject Terms: |
blood; Comisana ewes; growth performances of lambs; milk performances; rumen-protectedmethionine and lysine |
| Description: |
The purpose of the study was to evaluate the effect of supplementing the diets ofComisana ewes with rumen protected methionine and lysine (RP-ML) for a durationof 60 days on quantitative–qualitative production of milk, antioxidant parametersof milk and blood, biochemical parameters of blood, and lambs’ growth perfor-mance. Two groups of 15 ewes with equal average body weight were consideredfor the trial. The control group was administered a standard diet (Control, C) andthe experimental group the standard diet supplemented with 1.5% lysine and 1.0%methionine (Treated, T). Results showed that RP-ML supplementation positivelyinfluenced milk yield, fat and protein content, and casein ( p < 0.01). Furthermore,lambs of the T group, compared with those of the C group, showed a 15% highergrowth rate during the suckling period of 42 days. Finally, the total antioxidantcapacity of milk, measured by ferric reducing antioxidant power and 2,20-azino-bis(3-ethylbenzotiazolin-6-sulfonic acid assay, was significantly lower in T groups( p < 0.05). In conclusion, the results showed that the integration of RP-ML in ewescould be a valid strategy in order to improve their performances but further investi-gations are necessary to define the right concentration to be administered to theanimals. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/wos/WOS:001372759100001; volume:95; issue:1; firstpage:1; lastpage:8; numberofpages:8; journal:ANIMAL SCIENCE JOURNAL; https://hdl.handle.net/11563/200537 |
| DOI: |
10.1111/asj.70018 |
| Availability: |
https://hdl.handle.net/11563/200537; https://doi.org/10.1111/asj.70018 |
| Rights: |
info:eu-repo/semantics/openAccess |
| Accession Number: |
edsbas.E7FBD8A |
| Database: |
BASE |