caa a22 4500 388060875 CHVBK 20180307125120.0 cr unu---uuuuu 161130e199810 xx s 000 0 eng 10.1017/S1357729800010109 doi S1357729800010109 pii (NATIONALLICENCE)cambridge-10.1017/S1357729800010109 The influence of litter size on milk production of sows [Elektronische Daten] Thirty sows were allocated at their first farrowing to five litter size treatments. Litter sizes of six, eight, 10,12 and 14 were established by cross-fostering within 48 h post partum. Milk yield (Y, kg/day) of sows was linearly related to litter size (L) and was described by the equations; Y = 5·98 (s.e. 0·48) + 0·689 (s.e. 0·046)L, R2 = 0·99; residual s.d. = 0·29; P < 0·001 and Y = 8·20 (s.e. 0·46) + 0·324 (s.e. 0·044)1, R2 = 0·95; residual s.d. = 0·28; P < 0·002 for early (day 10 to day 14) and late (day 24 to day 28) lactation, respectively. The composition of milk from sows suckling various litter sizes remained relatively stable but suckling frequency in early lactation increased linearly in response to increased litter size. Litter size significantly affected the average growth rate of individual piglets; piglet growth rate from birth to weaning at 28 days of age decreased from 283 g/day to 202 giday in response to increasing litter size from six to 14. The relationships between milk yield, average piglet growth rate and litter size indicate that the number of functional glands is the major factor influencing milk yield of sows. Increasing the number of functional glands by increasing litter size more than compensates for any decrease in milk output from individual glands. Copyright © British Society of Animal Science 1998 lactation nationallicence litter size nationallicence milk yield nationallicence sows nationallicence Auldist D. E. Victorian Institute of Animal Science, Private Bag 7, Sneydes Road, Werribee, Victoria 3030, Australia Morrish L. Victorian Institute of Animal Science, Private Bag 7, Sneydes Road, Werribee, Victoria 3030, Australia Eason P. Victorian Institute of Animal Science, Private Bag 7, Sneydes Road, Werribee, Victoria 3030, Australia King R. H. Victorian Institute of Animal Science, Private Bag 7, Sneydes Road, Werribee, Victoria 3030, Australia Animal Science Cambridge University Press 67/2(1998-10), 333-337 1357-7298 67:2<333 1998 67 ASC https://doi.org/10.1017/S1357729800010109 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1357729800010109 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Auldist D. E. Victorian Institute of Animal Science, Private Bag 7, Sneydes Road, Werribee, Victoria 3030, Australia NATIONALLICENCE 700 1- Morrish L. Victorian Institute of Animal Science, Private Bag 7, Sneydes Road, Werribee, Victoria 3030, Australia NATIONALLICENCE 700 1- Eason P. Victorian Institute of Animal Science, Private Bag 7, Sneydes Road, Werribee, Victoria 3030, Australia NATIONALLICENCE 700 1- King R. H. Victorian Institute of Animal Science, Private Bag 7, Sneydes Road, Werribee, Victoria 3030, Australia NATIONALLICENCE 773 0- Animal Science Cambridge University Press 67/2(1998-10), 333-337 1357-7298 67:2<333 1998 67 ASC CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge