Performance and egg quality of commercial laying hens fed with various levels of protected sodium butyrate
Two experiments were conducted to evaluate the effect of including protected sodium butyrate (PSB) in the diets of laying hens of advanced age on productive performance and egg quality. In experiment 1, a total of 320 Dekalb White 61-week-old laying hens were distributed in a randomized block design to four treatments (0, 105, 210, and 300 g/ton of PSB) with eight replicates of 10 birds. The experiment was conducted over 112 days, divided into four periods of 28 days each. Productive performance and egg quality were evaluated. In experiment 2, a total of 58 000 Dekalb White 70-week-old laying hens were assigned to diets containing either 0 or 105 g/ton of PSB with two replicates of 14 500 birds. The experiment was conducted on a commercial poultry farm. Egg production and the percentages of broken eggs and dirty eggs were evaluated. The PSB levels did not influence the productive performance of laying hens. A quadratic effect was observed for eggshell thickness, percentage of eggshell and eggshell strength, reaching maxima at 193, 136 and 198 g/ton of PSB, respectively. A quadratic effect on yolk index reached a minimum at 181 g/ton of PSB. The percentages of dirty eggs and broken eggs were lower in laying hens fed 105 g/ton of PSB. In conclusion, the addition of PSB to the diets of old laying hens improved the eggshell quality and decreased the percentage of broken and dirty eggs.
Main Authors: | Pires,M.F., Leandro,N.S.M., Jacob,D.V., Carvalho,F.B., Oliveira,H.F., Stringhini,J.H., Pires,S.F., Mello,H.H.C., Carvalho,D.P. |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
The South African Society for Animal Science (SASAS)
2020
|
Online Access: | http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S0375-15892020000500013 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Effect of Dietary Inclusion of Protected Sodium Butyrate on the Digestibility and Intestinal Histomorphometry of Commercial Laying Hens
by: Pires,MF, et al.
Published: (2021) -
Effects of protected sodium butyrate and reduced energy content in diets for broiler chickens
by: Pires,M.F., et al.
Published: (2022) -
Sodium butyrate in post-hatch feed for broiler chicks
by: Carvalho,F.B., et al.
Published: (2021) -
Requirement of Sodium to Molted Laying Hens
by: Melo,RD, et al.
Published: (2020) -
Egg quality of hens fed different digestible lysine and arginine levels
by: Carvalho,FB de, et al.
Published: (2015)