Dietary Supplementation of Lysophospholipids Affects Feed Digestion in Lambs

Autor: Qin Huo, Bo Li, Long Cheng, Tingting Wu, Peihua You, Shuanghua Shen, Yiyong Li, Yuhua He, Wannian Tian, Rongquan Li, Changsheng Li, Jianping Li, Baijun Song, Chunqing Wang, Xuezhao Sun
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Animals, Vol 9, Iss 10, p 805 (2019)
Druh dokumentu: article
ISSN: 2076-2615
DOI: 10.3390/ani9100805
Popis: Five experiments were conducted to examine effects of lysophospholipids (LPL) on live weight gain, nutrient digestibility, ruminal fermentation parameters, serum biochemical parameters and rumen bacterial community profile in fattening lambs. Two dietary treatments (pelleted complete feed supplemented without (control diet; CON) or with 0.05% LPL on dry matter basis) were tested in these experiments. Feed and water were provided ad libitum to lambs. The results showed that average daily gain (ADG) tended to increase or was not affected by LPL supplementation. Compared with CON, the supplementation of LPL resulted in an increase in dry matter, crude protein and organic matter digestibilities, and a decrease in neutral detergent fiber and acid detergent fiber digestibilities. Ruminal pH values did not change with LPL supplementation, but the concentrations of ammonia and total short chain fatty acids (SCFAs) were increased. The molar proportion of major individual SCFAs and the ratio of acetate to propionate were not affected by LPL supplementation. While the activity of lipase was decreased with LPL supplementation, all other serum biochemical parameters did not change. Rumen bacterial community was altered by LPL supplementation with the relative abundance of fibrolytic bacteria in the total bacterial population, such as Prevotella, decreased. In conclusion, LPL supplementation can alter feed digestion, but may not result in consistent positive responses in animal growth performance.
Databáze: Directory of Open Access Journals
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