PSXI-26 - Blend of essential oils supplemented alone or combined with exogenous amylase compared with virginiamycin on performance of finishing lambs

Friday, July 16, 2021

6:30 PM – 7:30 PM EST

Location: Kentucky International Convention Center, Poster Hall/North Lobby

Author(s)

YA

Yesica Arteaga-Wences

Universidad Autónoma de Sinaloa
Culiacán, Sinaloa, Mexico
AE

Alfredo Estrada-Angulo

Full Professor
Universidad Autónoma de Sinaloa
Culiacán, Sinaloa, Mexico
MF

Manuel Franco

DSM Nutritional Products Mexico
El Salto, Jalisco, Mexico
GV

Guilherme S. Vasconcellos

Innovation and Applied Science Coordinator
DSM Nutritional Products Brazil S.A.
São Paulo, Sao Paulo, Brazil
TA

Tiago S. Acedo

DSM Nutritional Products Brazil S.A.
São Paulo, Sao Paulo, Brazil
Victor Valério de Carvalho, PhD

Innovation and Applied Science Supervisor
DSM Nutritional Products Brazil S.A.
São Paulo, Sao Paulo, Brazil
Alexandre Perdigão, PhD

Analyst
DSM Nutritional Products Brazil S.A.
Rio Brilhante, Mato Grosso do Sul, Brazil
BC

Beatriz Castro-Pérez, n/a

Full Professor
Universidad Autónoma de Sinaloa
Culiacán, Sinaloa, Mexico
FR

Francisco Ríos-Rincón

Universidad Autónoma de Sinaloa
Culiacán, Sinaloa, Mexico

Presenting Author(s)

Jesús Urías-Estrada, PhD

Full Professor
Universidad Autónoma de Sinaloa
Culiacán, Sinaloa, Mexico

Author(s)

AB

Alberto Barreras

Full Professor
Universidad Autónoma de B.C.
Mexicali, Baja California, Mexico
AP

Alejandro Plascencia

Universidad Autónoma de Occidente
Mexicali, Baja California, Mexico

Forty-eight Pelibuey × Katahdin (27.87±4.71 kg) intact lambs were used in a growth-performance trial lasted 87 days to assess the effects of treatments. Lambs were assigned to one of six weight groupings in 24 pens (6 replicas per treatment). Basal diet was comprised by cracked corn (14% CP and 2.08 Mcal ENm/kg) and was supplemented as follows: 1) No additives (Control); 2) supplemented with a blend of essential oils at dose of 150 mg EO/kg diet DM (EO, CRINA® Ruminants, DSM Nutritional Products); 3) supplemented with 150 mg EO plus 560 mg alpha-amylase/kg diet DM (EO+ENZ, RONOZYME® Rumistar, DSM Nutritional Products), and 4) supplemented with antibiotic virginiamycin (VM, Stafac 500, Phibro Animal Health) at dose of 28 mg virginiamycin/kg diet DM. Growth performance and dietary energetics were very similar (P > 0.97) between EO and VM. In such way that, compared to Control, lambs supplemented with EO and VM tended (P = 0.09) to shown greater final weight (3.1%) and average daily gain (ADG; 5.9%) without difference on DMI (P = 0.99); thus, gain-to-feed ratio (GF) and observed dietary net energy (NE) were average improved in 5.7% (P < 0.01). Compared to Controls, combining EO plus ENZ tended to increased DMI (6.8%, P = 0.09), but increased in 10.4% ADG (P < 0.01) and in 4.4% (P = 0.02) feed efficiency. Lambs supplemented with EO shown lower (P ≤ 0.10) kidney-pelvic-heart fat than Controls and VM lambs. Compared to Controls, additive supplementation decreased (P ≤ 0.03) the relative weight of intestines, the effect being more pronounced with EO supplementation. Compared to VM, supplemental EO (alone or combined with enzyme) shown lower (10.1%, P ≤ 0.04) visceral fat. Supplemental essential oils is a viable alternative to virginiamycin in finishing high-energy diets for lambs. Combining essential oils plus amylase can be a strategy to promote better daily gain weights allowing target final weight at shorter time.