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Quintana,Emanuel De La; Mendoza,Alejandro; Cajarville,Cecilia; Bentancur,Oscar; Repetto,José Luis. |
ABSTRACT: To study the effect of post-weaning feeding levels on the growth of dairy heifers, 40 animals with 77.7 ± 8.1 days of age and 77.5 ± 9.2kg of body weight were grouped in 10 pens, and each pen was randomly assigned to one of the following treatments for 120 days: feeding level to achieve a body weight gain of 600 (TMEDIUM) or 800 (THIGH) g/day based on a total mixed ration. After this period all heifers were managed as a single group for 150 days. Nutrient intake, behavior, body weight and other morphological measures were recorded in each animal. As a result of the experimental design THIGH heifers had a higher nutrient intake than TMEDIUM heifers, which was reflected in a higher daily weight gain, withers height, heart girth and hip width.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heifer; Feeding level; Growth. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000300651 |
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平本, 典子; 大谷, 昌之; 田辺, 茂之; 宇塚, 雄次; 更科, 孝夫; HIRAMOTO, Noriko; OHTANI, Masayuki; TANABE, Shigeyuki; UZUKA, Yuji; SARASHINA, Takao. |
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Palavras-chave: 子牛; 未経産牛; 硝酸ナトリウム; T4; T3; Calf; Heifer; Sodium nitrate. |
Ano: 2001 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1249 |
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斉藤, 朋子; 瀬尾, 哲也; 柏村, 文郎; SAITOH, Tomoko; SEO, Tetsuya; KASHIWAMURA, Fumiro. |
This study evaluated the possibility of decreasing defecation in a bedding area by inducing a heifer to visit a feeding station within a few minutes or immediately after standing. An experimental paddock (11.3 x 6 .8m) was made outdoors. Half of the paddock was roofed and bedded with straw to form a resting area. A feeding station was situated in the remaining area of the paddock,which was designated as the feeding area. Six Holstein heifers,the test subjects,were grouped together in the paddock. A standing detection device was developed and attached to the heifer's left hind leg. The feeding station had an antenna that identified the heifer carrying the ID-tag when it entered the station. This experiment included control period and an experimental... |
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Palavras-chave: 牛; 排泄行動; フィードステーション; 学習; Heifer; Eliminative behavior; Feeding station; Learning. |
Ano: 2005 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2996 |
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