The Application of Perennial Peanut, Peanut Stover, and Sunnemp as Forage Replacement for Dairy Goats
Date Issued
2009
Date
2009
Author(s)
Wang, Che-Hsuan
Abstract
In traditional animal industry, farmers used many kinds of agricultural by-products to rear cattles and goats. Agricultural by-products and green manure could be offered as forage to ruminants. The purpose of this study is to evaluate perennial peanut, peanut stover, and sunn hemp as forage replacement for dairy goats.sing a 4×4 Latin square experimental design, four Alpine dairy goats kept in individual metabolism cages were assigned randomly to four treatments contained alfalfa hay, perennial peanut, peanut stover, or sunn hemp, respectively, in combination with concentrate at a 50:50 ratio (DM basis). Four treatment rations were formulated to be isonitrogenous (CP = 18%). Each experiment period included a 10-day adaptation period and a 4-day sampling period. oats in sunn hemp group had significantly lower dry matter (DM) intake than perennial peanut and peanut stover groups (P < 0.05). DM intake of alfalfa hay, perennial peanut, peanut stover, and sunn hemp groups were 1486, 1529, 1557, and 1395 g/day, respectively. No significant treatment difference was observed in organic matter (OM) intake. Because goats in sunn hemp group picked leaves to eat, the proportion of protein intake is higher than the other groups. Goats in alfalfa hay group had significantly higher ether extract (EE) intake than the other groups, and had significantly higher non-fiber carbohydrate (NFE) intake than perennial peanut and sunn hemp group. Perennial peanut group had significantly lower DM digestibility and higher acid detergent fiber (ADF) digestibility than alfalfa hay group (P < 0.05). OM, crude protein (CP), neutral detergent fiber (NDF), EE, and starch digestibility was similar in perennial peanut and alfalfa hay group. No significant treatment difference was observed in DM, OM, CP, NDF, ADF, EE, and starch digestibility in peanut stover and alfalfa hay groups. Sunn hemp group had significantly higher NDF and ADF digestibility (P < 0.05). No significant treatment difference was observed in DM, OM, CP, EE, and starch digestibility in sunn hemp and alfalfa hay groups. No significantly difference was observed in daily NEl intake. Milk yields in alfalfa hay, perennial peanut, peanut stover, and sunn hemp groups were 2036, 1986, 1948, and 1761 g/day, respectively. Peanut stover group (1.25) had significantly lower feed efficiency than alfalfa group. Perennial peanut (1.30) and sunn hemp (1.27) groups had no significant different in feed efficiency with alfalfa hay group (1.38) (P > 0.05). There was no significant treatment difference in milk fat, milk protein, lactose, and total solid contents.n conclusion, perennial peanut and peanut stover can replace alfalfa hay as forage without negative effect on dairy goat. Although DMI and milk production were lower in sunn hemp group, the feed efficiency was similar to other treatments.
Subjects
Green manure
By-product
Dairy goat
Type
thesis
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