منابع مشابه
Social Licking in Pregnant Dairy Heifers
Housing affects social behaviors, such as competition, but little work has addressed affiliative behaviors. This study compared social licking (SL) in pregnant heifers housed indoors (in a free-stall barn) versus outdoors (on pasture), and relationships with competition, feeding and physical proximity to others. Six heifer groups were observed during two six-hour-periods in both treatments. The...
متن کاملSeroprevalence of Bovine Leukemia Virus (BLV) Infection in Pregnant Replacement Dairy Heifers in Saraburi Province, Thailand
Seroprevalence of bovine leukemia virus (BLV) infection was studied in replacement dairy heifers. Blood samples were collected from 80 pregnant heifers raised in 8 dairy farms in Saraburi province, the central part of Thailand and serum samples were tested for antibodies against BLV infection using commercially available ELISA test kits. The results revealed that 26 (32.5%) pregnant heifers wer...
متن کاملSerum folates in young dairy heifers.
1. In the first trial, hourly blood samples were drawn during the light period (06.30-20.30 hours) from thirty-four dairy heifers in two groups of different ages. 2. Concentrations of serum folates were 8.2 (SE 0.1) ng/ml at the age of 18.2 (SE 0.6) d and 14.8 (SE 0.2) ng/ml at 120.7 (SE 2.9) d (P less than or equal to 0.001). 3. In the second trial, forty heifers were randomly assigned to a fa...
متن کاملEpidemiology of Mastitis in Peripartum Dairy Heifers
............................................................................................................................ ii Acknowledgements.......................................................................................................... iii Table of
متن کاملFeeding Behavior of Pregnant Dairy Heifers during Last Trimester under Loose Housing System
Thirty pregnant heifers (Jersey, Holstein Friesian and Hariana) were divided into three groups (10 animals/group) according to their stage of pregnancy viz. seven-month (181-210 days) pregnancy (SMP), eight-month (211-240 days) pregnancy (EMP) and nine-month (241-280 days) pregnancy (NMP) group. Time spent in various feeding activities (eating fodder, eating concentrate, standing rumination, si...
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ژورنال
عنوان ژورنال: Animals
سال: 2015
ISSN: 2076-2615
DOI: 10.3390/ani5040404