A New Biosynthetic 6-Phytase Added at 500 Phytase Unit/kg Diet Improves Growth Performance, Bone Mineralization, and Nutrient Digestibility and Retention in Weaned Piglets and Growing–Finishing Pigs
Visualitza/Obre
Autor/a
Jlali, Maamer
Hincelin, Clémentine
Rougier, Tania
Ceccantini, Marcio
Ozbek, Sarper
Preynat, Aurélie
Devillard, Estelle
Data de publicació
2024-06-03ISSN
2306-7381
Resum
Two experiments were performed to evaluate the effect of a biosynthetic 6-phytase added at
500 phytase unit (FTU)/kg diet on growth performance, bone mineralization, and nutrient digestibility and retention in weaned piglets and growing–finishing pigs. Experiments were performed on
90 weaned male and female piglets with an average initial body weight (BW) at 7.7 ± 0.73 kg, 26 days
of age) and 300 male and female growing pigs (initial BW: 21.0 ± 3.44 kg) for 43 and 98 days in experiments 1 and 2, respectively. In each experiment, the animals were assigned to one of three treatments
according to a randomized complete block design. The treatments consisted of a positive-control
(PC) diet formulated to meet nutrient requirements; a negative-control (NC) diet reduced similarly in
calcium (Ca) and digestible P by 0.15 and 0.12% points in phases 1 and 2, respectively, in piglets and
by 0.14, 0.11, and 0.10% points, respectively, in phases 1, 2, and 3 in growing–finishing pigs, compared
with PC diet; and a NC diet supplemented with the new 6-phytase at 500 FTU/kg diet (PHY). The
dietary P and Ca depletion reduced (p < 0.05) the final BW (−11.9%; −7.8%,), average daily gain
(ADG, −17.8%; −10.1%), average daily feed intake (ADFI, −9.9%; −6.0%), gain-to-feed (G:F) ratio
(−8.9%; −4.6%), and apparent total tract digestibility (ATTD) of P (−7.7% points; −6.7% points) in
nursery piglets and growing pigs, respectively. It also decreased (p < 0.001) P and Ca retention by 6.1
and 9.4% points, respectively, in nursery pigs and ash, P, and Ca contents in metacarpal bones by
18.4, 18.4, and 16.8%, respectively, in growing pigs. Compared to animals fed the NC diet, phytase
supplementation improved (p < 0.001) the final BW (+7.7%; +11.3%), ADG (+12.5%; +15.0%), G:F
ratio (+8.4%; +5.8%), ATTD of Ca (+10.8% points; +7.2% points), and ATTD of P (+18.7% points;
+16.6% points) in weaned piglets and growing pigs, respectively. In addition, phytase also increased
(p < 0.001) P and Ca retention by 6.1 and 9.4% points, respectively, in nursery pigs and ash, P, and
Ca contents in metacarpal bones by 17.7, 15.0, and 15.2%, respectively, in growing pigs. The final
BW, ADG, G:F ratio, and bone traits in animals fed the NC diet supplemented with phytase were comparable to animals fed the PC diet. This finding indicates the ability of this novel biosynthetic
phytase to restore performance and bone mineralization by improving the availability of P and Ca in
piglets and growing pigs fed P- and Ca-deficient diets
Tipus de document
Article
Versió del document
Versió publicada
Llengua
English
Matèries (CDU)
636 - Explotació i cria d'animals. Cria del bestiar i d'animals domèstics
Pàgines
13
Publicat per
MDPI
Publicat a
Veterinary Sciences
Citació
Jlali, Maamer, Clémentine Hincelin, David Torrallardona, Tania Rougier, Marcio Ceccantini, Sarper Ozbek, Aurélie Preynat, and Estelle Devillard. “A New Biosynthetic 6-Phytase Added at 500 Phytase Unit/kg Diet Improves Growth Performance, Bone Mineralization, and Nutrient Digestibility and Retention in Weaned Piglets and Growing–Finishing Pigs”. Veterinary Sciences 11 (6): 250. doi:10.3390/vetsci11060250
Programa
Nutrició Animal
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