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| Ochoa-Cordero,Manuel A.; Torres-Hernández,Glafiro; Mandeville,Peter B.; Díaz-Gómez,Marta O.. |
| Abstract The effects of physiological and management factors on the milk composition of Rambouillet ewes under confined management at the Sheep Unit, Agronomy Faculty, Universidad Autónoma de San Luis Potosí, México, were evaluated. Two treatments were randomly assigned to 45 single and twin-rearing ewes, 2-5 years old: 6 and 8 weeks of lactation, which were the dates when the lambs were weaned. Milk samples were taken during lactation (weeks 1, 3, 6, 8, and 12), and chemically analyzed using standard laboratory procedures for protein, fat, total solids, ash and lactose percentages. Statistical analysis was performed utilizing a model that included the fixed effects of lambing number (LN: 1-3+), birth type (BT: single, twins), lamb sex (LS: ram lambs, ewe... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental factors; Ewes; Intensive management; Milk components. |
| Ano: 2007 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952007000300263 |
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| Primavesi,Odo; Freitas,Alfredo Ribeiro de; Primavesi,Ana Cândida; Oliveira,Haydée Torres de. |
| The Canchims creek watershed in São Carlos, SP, Brazil, was chosen to evaluate water quality affected by dairy and beef cattle production systems based on tropical pasture. The water samples were collected monthly, during three years, at six sampling points: spring in a tropical forest, spring in an intensive dairy production system, two dam springs, and stream water upward and at the delta. Results showed differences (P<0.01) among sampling points for the mean parameters. True color, hardness, turbidity, electric conductivity, alkalinity, pH, chemical oxygen demand and consumed oxygen explained well differences among sampling points. According to current legislation standards, water quality fitted with most of the established parameters for class 2,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dairy cattle; Beef cattle; Intensive management; Pasture; Water quality; Watershed. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000200013 |
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