Effects of Feeding Rumen-Protected Sunflower Seed and Meal Protein on Feed Intake, Diet Digestibility, Ruminal, Cecal Fermentation, and Growth Performance of Lambs

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Haro, Andrés and Gonzalez, Javier and Evan, Trinidad de and Fuente Vázquez, Jesús de la and Carro, María Dolores (2019) Effects of Feeding Rumen-Protected Sunflower Seed and Meal Protein on Feed Intake, Diet Digestibility, Ruminal, Cecal Fermentation, and Growth Performance of Lambs. Animals, 9 (7). p. 415. ISSN 2076-2615

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Official URL: https://doi.org/10.3390/ani9070415




Abstract

The objective of this study was to analyze the efficacy of a treatment (MAH) of sunflower seed (SS) and meal (SM) with a malic acid solution (1 M; 400 mL/kg) and heating (150 ◦C, 2 h) to protect protein against rumen degradation and to improve the growth of lambs. Two homogeneous groups of 12 Lacaune lambs each (14.2 ± 0.35 kg body weight) were fed either a concentrate including untreated SS and SM or a concentrate with MAH-treated SS and SM. Lambs were fed concentrate and barley straw ad libitum for 40 days (about 26 kg body weight); feed intake and growth of lambs were recorded; blood samples were taken on days 0, 20, and the slaughter day for analysis of urea-N and amino acid-N; diet digestibility was determined; and ruminal and cecal samples were collected after slaughter. The in vitro incubation of both concentrates with sheep ruminal fluid for 12 h showed that the MAH-treatment tended to reduce NH3-N concentrations and increased propionate production. However, there were no differences (p > 0.05) between groups in any of the tested variables in the in vivo trial.


Item Type:Article
Uncontrolled Keywords:protein protection; malic acid; heat; in vitro rumen fermentation; sunflower seed and meal; growing lambs
Subjects:Medical sciences > Veterinary > Sheep
Medical sciences > Veterinary > Nutrition and care of the animals
ID Code:64475
Deposited On:23 Mar 2021 18:26
Last Modified:25 Mar 2021 07:31

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