Weight, body condition, milk production, and metabolism of Nellore cows when their calves are submitted to different supplementation levels
| Autor: | L. S. Amorim, Marcos Rocha Manso, Luciana Navajas Rennó, Mário Fonseca Paulino, Aline Gomes da Silva, Marcio de Souza Duarte, Paulo Henrique Silva e Paiva, Edenio Detmann, Felipe Henrique de Moura, Victor Valério de Carvalho, Luciano Prímola de Melo |
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| Rok vydání: | 2016 |
| Předmět: |
040301 veterinary sciences
Offspring Fat thickness 0403 veterinary science chemistry.chemical_compound Animal science Food Animals Medicine Animals Lactation Urea Lactose Creep feeding business.industry Body Weight 0402 animal and dairy science Albumin 04 agricultural and veterinary sciences Metabolism Total dissolved solids Milk production Cow metabolism 040201 dairy & animal science Animal Feed Diet Milk chemistry Grazing dams Dietary Supplements Animal Science and Zoology Cattle Female business Body condition Zebu cow |
| Zdroj: | LOCUS Repositório Institucional da UFV Universidade Federal de Viçosa (UFV) instacron:UFV |
| ISSN: | 1573-7438 |
| Popis: | Creep feeding has been used to reduce calves’ nutritional dependence on the cow, but research results under tropical conditions have not been conclusive about the effects on the cow. Therefore, this study was conducted to evaluate the effects of high and low supplementation levels for Nellore heifer calves on performance, milk production, and metabolic profile of their mothers. Fifty multiparous Nellore cows and their respective calves were used. The following treatments were evaluated: 0—control, no supplement was fed to calves; 3—calves received supplement in the amount of 3 g/kg of body weight (BW); 6—calves received supplement in the amount of 6 g/kg of BW. There was no significant effect of level of supplementation offered to offspring on cow BW, body condition score (BCS) and subcutaneous fat thickness (P > 0.05). Level of supplementation of heifer calves did not significantly affect milk production corrected to 4% of fat (P > 0.05). Fat, protein, lactose, and total solids of the milk also did not differ among supplementation strategies (P > 0.05). Level of supplement fed to calves had no effect on cows’ glucose, total cholesterol, HDL, LDL, triglycerides, total protein, and albumin levels (P > 0.05), but cows nursing calves that did not receive supplement had lower level of serum urea N (SUN; P |
| Databáze: | OpenAIRE |
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