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| Vargas Junior,Fernando Miranda de; Wechsler,Francisco Stefano; Rossi,Patrícia; Oliveira,Marcus Vinicius Morais de; Schmidt,Patrick. |
| This trial aimed to investigate the influence of calf genetic group on the ingestive behavior of Nellore dams and their offspring on pasture. Twenty one primiparous and multiparous Nellore cows were assigned to the experiment; 13 cows nursed straightbred Nellore calves; and eight cows nursed halfbred Simmental × Nellore calves. The observations started in the morning, as soon as identification of the animals in daylight was possible, and they lasted until after sunset, when identification became impossible. The observations were made at 3, 6, 12, 24 and 30 weeks after calving. The following events were continuosly observed: grazing, rumination, idleness, water and mineral intake, and suckling frequency and length.. The dams of straightbreds showed a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crossbreeding; Grazing; Idleness; Rumination; Suckling. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000300026 |
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| Vargas Junior,Fernando Miranda de; Wechsler,Francisco Stefano; Rossi,Patrícia; Oliveira,Marcus Vinicius Morais de; Schmidt,Patrick. |
| This study aimed to investigate the influence of calf genetic group on the performance of Nellore lactating cows. The variables studied included milk ingestion, pasture intake, calf weight gain and cow body weight. A total of 13 Nellore calves and 8 crossbred Simental × Nellore calves were used, all born from Nellore mothers. During the experimental period of 210 days, calves were weighted at birth and at 30-day intervals, whereas cows were weighed every 14 days. Milk intake was estimated using the weigh-suckle-weigh method. Pasture intake was determined 6, 12, and 24 weeks after birth by using chromic oxide as an external marker and indigestible acid detergent fiber as an internal marker. Average weight of crossbred calves was 10.1 kg and their milk... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crossing; Grazing; Milk; Weight gain. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100040 |
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