Effects of Dietary Multi-Carbohydrase and Phytase Complex Supplementation on Nutrient Digestibility, Bone Mineralization and Puberty Onset in Gilts
Fangyuan Chen,
Rui Zhou,
Lianpeng Zhao,
Lingjie Huang,
Yong Zhuo,
Shengyu Xu,
Yan Lin,
Lianqiang Che,
Bin Feng,
De Wu,
Zhengfeng Fang
Affiliations
Fangyuan Chen
Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
Rui Zhou
Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
Lianpeng Zhao
Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
Lingjie Huang
Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
Yong Zhuo
Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
Shengyu Xu
Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
Yan Lin
Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
Lianqiang Che
Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
Bin Feng
Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
De Wu
Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
Zhengfeng Fang
Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China
The study was conducted to determine the effects of multi-carbohydrase and phytase complex (MCPC) supplementation in standard and commercial diets on growth performance, nutrient digestibility, bone mineralization, blood biochemical parameters and puberty onset in gilts. A total of 144 healthy gilts (Duroc × (Landrace × York)) were assigned randomly to four treatments (n = 36), with 10 replicate pens (6 pens, each containing 4 gilts, and 4 pens, each containing 3 gilts). The trial consisted of two phases (phase 1: 70–100 kg; phase 2: 100–140 kg). The commercial diet (COM) had 33% higher calcium (Ca) and phosphorus (P) levels than the standard diet (CON) across all phases. The four treatment diets were as follows: CON (phase 1: 0.56 g/kg Ca and 0.49 g/kg P; phase 2: 0.49 g/kg Ca and 0.45 g/kg P), COM (phase 1: 0.75 g/kg Ca and 0.65 g/kg P; phase 2: 0.65 g/kg Ca and 0.60 g/kg P), CON + MCPC and COM + MCPC, where both the CON and COM diets were supplemented with 100 mg/kg of MCPC, respectively. The commercial diet significantly (p p = 0.07) the age at puberty compared to the standard diet. Besides, MCPC supplementation improved the apparent total-tract digestibility (ATTD) of Ca (p p p = 0.07) in gilts during phase 1, compared to the basal diets without MCPC supplementation. Additionally, MCPC supplementation significantly elevated serum creatinine (CREA, p p = 0.07) concentrations in gilts. Specifically, COM + MCPC supplementation significantly increased the osteocalcin (OCN) concentration compared with the COM treatment. Moreover, dietary MCPC supplementation significantly improved the bone strength (p < 0.05) compared to the basal diets without MCPC supplementation. In conclusion, dietary MCPC supplementation increased the ATTD of Ca and P in gilts, while also improving bone strength. This improvement not only extends the reproductive lifespan of sows, but it also allows for reduced supplementation levels of Ca and P in the dietary formula.
