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| Content Provider | Springer Nature Link |
|---|---|
| Author | Hernández Ortega, Martha Heredia Nava, Darwin Espiza Ortega, Angelica Sánchez Vera, Ernesto Arriaga Jordán, Carlos M. |
| Copyright Year | 2011 |
| Abstract | The objective was to determine the effect of including silages of annual ryegrass (Lolium multiflorum) intercropped with winter vetch (Vicia villosa) (ARG-VV) or with common vetch (Vicia sativa) (ARG-VS) compared with maize silage (MS) on milk yield and milk composition of dairy cows grazing cultivated perennial ryegrass–white clover pastures with supplemented concentrate during the dry season. Six Holstein dairy cows with a mean yield of 19.0 kg/cow/day at the beginning of the experiment were randomly assigned to a 3 × 3 repeated Latin square. Treatments were: 8 h/day intensive grazing, 3.6 kg of dry matter (DM) per cow per day of concentrate plus MS, and ARG-VV or ARG-VS ad libitum at a stocking rate of 3.0 cows/ha for three experimental periods of 3 weeks each. Milk yield (MY) and milk composition, live weight and body condition score as well as silage and concentrate intakes were recorded during the third week of each experimental period, and pasture intake was estimated indirectly from utilised metabolisable energy. Economic analysis was obtained by preparing partial budgets. There were no statistical differences (P > 0.10) in MY, milk fat or protein content nor for live weight, but there was significant difference (P < 0.10) in body condition score. There were non-statistical differences in silage DM intake (P < 0.11); however, significant differences (P < 0.10) were obtained for estimated grazed herbage intake whilst no differences for total DM intake. Slightly higher economic returns (10%) were obtained with ARG-VS over MS, and this was 7% higher than ARG-VV. It is concluded that ARG-VS could be an option for complementing grazing for small-scale dairy production systems in the dry season as it is comparable to MS in animal performance and slightly better in economic terms. |
| Starting Page | 947 |
| Ending Page | 954 |
| Page Count | 8 |
| File Format | |
| ISSN | 00494747 |
| Journal | Tropical Animal Health and Production |
| Volume Number | 43 |
| Issue Number | 5 |
| e-ISSN | 15737438 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2011-02-15 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Small-scale dairy systems Annual ryegrass–vetch silage Maize silage Grazing Highlands Mexico Veterinary Medicine Zoology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Animal Science and Zoology Food Animals |
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