Adsa Logo White Adsa Title White

Effect of rearing conditions of primiparous cow prior to weaning on their performance and behavior after calving.

J. Broucek

Events

06-22-2020

Join J. Broucek on this page for a live text chat!
6:00 PM - 8:00 PM GMT

Abstract:

M101
Effect of rearing conditions of primiparous cow prior to weaning on their performance and behavior after calving.
J. Broucek*, M. Uhrincat, P. Kisac, A. Hanus. National Agricultural and Food Centre Luzianky, Slovakia.

The objective was to find whether cow growth, milk performance, and behavior are affected by their rearing to weaning in 84 d. Thirty-five Holstein heifers were assigned to 1 of 3 treatments: SM, n = 13, pen with mother (milked from d 2) to d 21, suck a mother's udder 3 times per d, then group pen (6 kg milk per d, bucket with nipple); SN, n = 9, after 3 d with own mother in pen with nursing cow, calves could drink at any time, usually 3—5 times per d, number of calves per nursing cow determined according to milk yield (6 kg milk per d and calf); H, n = 13, after having nursed their dams in individual pen for 24 h in hutches from d 2 to 56 (bucket with nipple, milk replacer, 6 kg per d), then loose housing pen to weaning (bucket with nipple, milk replacer, 6 kg per d). Group SM allowed 21 d suckle, 63 d bucket fed; SN allowed 84 d suckle; H allowed 1 d suckle, 83 d bucket fed. All calves were weaned at d 84. After weaning from milk feeding, all heifers were kept in age-balanced groups in bedded pens with the same ration to the calving. During the lactation, live body weight (LBW) was measured each month and milk yield (MY) each d. Cows were milked in the parlor from d 4. Learning was evaluated at the 5th month. Cows solved 6 tasks during 3 d. The data were analyzed using a General Linear Model ANOVA. At the 30th d, the LBW tended to be the highest in SN (SM 528 � 11 kg, SN 572 � 15 kg, H 533 � 12 kg). On the lactation end, the highest LBW was in SN and the lowest in H (SN 623 � 16 kg, SM 613 � 12 kg, H 570 � 13 kg, P < 0.05). The SN tended to the highest production of milk (SM 7144 � 241 kg, SN 7345 � 319 kg, H 7147 � 234 kg), and the SM for FCM (SM 6521 � 203 kg, SN 6278 � 268 kg, H 6340 � 197 kg) for 305-d lactation. Group SN crossed the maze fastest (SM 1141 � 120 s, SN 810 � 160 s, H 1121 � 119 s). The number of vocalizations differed significantly (SM 32 � 6, SN 21 � 4, H 10 � 3, P < 0.01). The results indicated that the rearing method to weaning may have an impact on dairy cow performance and behavior.

Keywords: rearing, growth, milk.