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This experiment was conducted to study the effects of peanut seedling silage on growth performance, immunity and meat quality of mutton sheep. A total of 60 healthy mutton sheep with similar body weight were randomly divided into four groups with 15 replicates per group and one sheep per replicate. The mutton sheep in the control group were fed corn stalk silage as roughage, and peanut seedling silage was used to replace 25% (trial group A), 50% (trial group B) and 100% (trial group C) corn stalk silage in experimental groups, respectively. The pre-test period was one week and the formal test period was eight weeks. The results showed that compared with the control group, the final weight and average daily gain of mutton sheep in trial groups B and C were significantly increased (P<0.05), and the ratio of feed to gain was significantly decreased (P<0.05). Compared with the control group, the serum immunoglobulin A (IgA) and interleukin-10 (IL-10) levels of mutton sheep in trial groups B and C were significantly increased (P<0.05), the levels of interleukin-6 (IL-6), interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) were significantly decreased (P<0.05), and the CD4+ content and CD4+ /CD8+ ratio were significantly increased (P<0.05). Compared with the control group, the pH value and redness value of muscle in trial groups B and C were significantly increased (P<0.05), while the drip loss, brightness value and yellowness value were significantly decreased (P<0.05). The shear force of all trial groups was significantly decreased (P<0.05). Compared with the control group, the contents of palmitic acid and saturated fatty acid in muscle of trial groups B and C were significantly decreased (P<0.05), while the contents of erucic acid and monounsaturated fatty acid were significantly increased (P<0.05). Oleic acid content and ω-6/ω-3 ratio in muscle of mutton sheep in all experimental groups were increased (P<0.05). The study indicates that peanut seedling silage can improve the growth performance, immunity and mutton quality, peanut seedling silage can replace 50% and 100% corn straw silage effectively. [ABSTRACT FROM AUTHOR]

Dry distiller's grains and its soluble matter (DDGS) is a kind of nutrient-rich protein feed, which can partially replace the dosage of soybean meal in production. However, due to its own anti-nutrient factors, some nutrients are broken during processing, and the proportion of amino acids is unbalanced, which limits the extensive use of DDGS in production. This paper summarizes the nutritional characteristics of different types of DDGS, analyzes the factors affecting the quality and the treatment methods to reduce the unfavorable factors, combs the application effects in different animals, and gives the suggested dosage after comprehensive analysis, which provides a reference for rational utilization of DDGS and promoting feed saving and consumption reduction. [ABSTRACT FROM AUTHOR]

The experiment was to study the effect of fermented Flammulina velutiper chaff on milk production performance, nutrient apparent digestibility and rumen fermentation parameters of Guanzhong dairy goats. Seventy-five healthy central dairy goats with similar weight, age, parity and milk yield were randomly divided into five groups, with three replicates in each group and five goats in each replicate. Dairy goats in each group were fed with diets supplemented with 0 (control group), 20%, 25%, 30% and 35% Flammulina velutiper chaff, respectively. The pre-test lasted for 15 d and the formal test lasted for 60 d. The results showed that the average daily milk yield of dairy goats in 30% group was significantly higher than that in other groups (P<0.05). The apparent digestibility of DM, CP, EE, NDF and ADF in 30% group was significantly higher than that in control group and 20% group (P<0.05). Rumen pH value of dairy goats in 30% group was significantly lower than that in control group, 20% group and 25% group (P<0.05), but no significant difference was found between 30% group and 35% group (P>0.05). Compared with control group, the ammonia nitrogen content of dairy goats in 20% group, 25% group, 30% group and 35% group was increased by 23.04%, 37.40%, 46.86% and 47.27%, respectively. The experiment indicates that adding 30% fermented Flammulina velutiper chaff in diet can improve the milk performance of Guanzhong dairy goats, promote the digestion and absorption of nutrients and increase the rumen fermentation status. [ABSTRACT FROM AUTHOR]

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