Ten Italian Friesian female calves were housed in individual stalls of two different dimensions (0.73 m x 1.21 m vs 1.00 m x 1.50 m) during the Ist month of life in order to evaluate the effect of space on the welfare of dairy calves. Behavioural observations were made on d 2 to 3 (period 1) and on d 28 to 29 (period 2) during daylight using a time-lapse video recording system. At 10, 20, and 30 d, blood samples were taken and analysed with phytohemagglutinin stimulation to determine lymphocyte proliferation. During the second period, the calves in large stall spent more time lying (P<0.05) and grooming (P<0.001), and the calves in small stalls exhibited more time searching for feed (P<0.001). Lymphocyte proliferation was statistically lower in calves housed in smaller stalls (P<0.01). Moreover, lymphocyte proliferation was negatively correlated with time spent searching for feed (P<0.01).
Preliminary study on the effect of size of individual stall on the behavioural and immune reactions of dairy calves / V. Ferrante, E. Canali, S. Mattiello, P. Sacerdote, B. Manfredi, M. Verga, A.E. Panerai. - In: JOURNAL OF ANIMAL AND FEED SCIENCES. - ISSN 1230-1388. - 7:1(1998), pp. 29-36. [10.22358/jafs/69192/1998]
Preliminary study on the effect of size of individual stall on the behavioural and immune reactions of dairy calves
V. Ferrante;E. Canali;S. Mattiello;P. Sacerdote;B. Manfredi;M. Verga;A.E. Panerai
1998
Abstract
Ten Italian Friesian female calves were housed in individual stalls of two different dimensions (0.73 m x 1.21 m vs 1.00 m x 1.50 m) during the Ist month of life in order to evaluate the effect of space on the welfare of dairy calves. Behavioural observations were made on d 2 to 3 (period 1) and on d 28 to 29 (period 2) during daylight using a time-lapse video recording system. At 10, 20, and 30 d, blood samples were taken and analysed with phytohemagglutinin stimulation to determine lymphocyte proliferation. During the second period, the calves in large stall spent more time lying (P<0.05) and grooming (P<0.001), and the calves in small stalls exhibited more time searching for feed (P<0.001). Lymphocyte proliferation was statistically lower in calves housed in smaller stalls (P<0.01). Moreover, lymphocyte proliferation was negatively correlated with time spent searching for feed (P<0.01).File | Dimensione | Formato | |
---|---|---|---|
Preliminary study on the.pdf
accesso aperto
Tipologia:
Publisher's version/PDF
Dimensione
415.93 kB
Formato
Adobe PDF
|
415.93 kB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.