Effect of parity on milk yield, composition, somatic cell count, renneting parameters and bacteria counts of Comisana ewes

Sevi, A.; Taibi, L.; Albenzio, Marzia; Muscio, A.; Annicchiarico, G.

doi:10.1016/s0921-4488(99)00133-9

Cited by 92 publications

(90 citation statements)

References 16 publications

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“…This is supported by the significant effect of ewe parity on lamb growth, which suggests that it is the ability of the ewe to provide milk to her lamb, which is the main determinant of lamb weight gain. Younger ewes are known to produce milk with significantly less protein, casein and fat compared with older ewes (Sevi et al, 2000). Although stocking density did appear to affect suckling duration, at least in the multiparous ewes, this was not associated with reduced milk supply and, therefore, poorer lamb growth in the smaller pens.…”

Section: Discussionmentioning

confidence: 81%

Pen size and parity effects on maternal behaviour of Small-Tail Han sheep

Yang

Dwyer

et al. 2015

Animal

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The aim of this experiment was to study the effects of pen size and parity on maternal behaviour of twin-bearing Small-Tail Han ewes. A total of 24 ewes were allocated to a 2 × 2 design (six per pen), with parity (primiparous or multiparous) and pen size (large: 6.0 × 3.0 m; small: 6.0 × 1.5 m) as main effects at Linyi University, Shandong Province, China. Behaviour was observed from after parturition until weaning. All ewes were observed for 6 h every 5 days from 0700 to1000 h and from 1400 to 1700 h. Continuous focal animal sampling was used to quantify the duration of maternal behaviours: sucking, grooming and following as well as the frequency of udder accepting, udder refusing and low-pitched bleating. Oestradiol and cortisol concentrations in the faeces (collected in the morning every 5 days) were detected using EIA kits. All lambs were weighed 24 h after parturition and again at weaning at 35 days of age. The small pen size significantly reduced following ( P < 0.005), grooming ( P < 0.001) and suckling durations ( P < 0.05), as well as the frequency of udder refusals ( P < 0.001). However, there was a significant interaction with ewe parity, with decreased grooming and suckling in the small pen largely seen in the multiparous ewes ( P < 0.001). Independent of pen size, multiparous ewes accepted more sucking attempts by their lambs ( P < 0.05) and made more low-pitched bleats than primiparous ewes ( P < 0.001). Multiparous ewes had higher faecal oestradiol concentrations than primiparous ewes ( P < 0.001), and ewes in small pens had higher faecal cortisol levels compared with ewes in larger pens ( P < 0.001). As lambs increased in age, the duration of maternal grooming, following and suckling as well as frequency of udder acceptance and lowpitched bleating all declined, and the frequency of udder refusing increased ( P < 0.001 for all). Ewe parity, but not pen size, affected lamb weight gain during the period of observation ( P < 0.001). This is the first study to show that pen size, interacting with parity, can affect the expression of maternal behaviour in sheep during lactation. The study is also the first to report on the maternal behaviour of Chinese native sheep breeds (Small-Tail Han sheep), with implications for the production of sheep in China.

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Section: Discussionmentioning

confidence: 81%

Pen size and parity effects on maternal behaviour of Small-Tail Han sheep

Yang

Dwyer

et al. 2015

Animal

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“…The same trends were also reported by Maria and Gabiňa (1993) and Ploumi et al (1998) whilst from the most of studies also result that the highest milk yields are found from the third to the fi h lactation. On the other hand in studies which were carried out by Christodoulou et al (1997) and Sevi et al (2000) have not been recorded the eff ect of parity on DMY.…”

Section: Resultsmentioning

confidence: 91%

Effect of different crossbreeds of Lacaune and East Friesian breeds on milk yield and basic milk parameters

Konečná¹,

Kuchtík²,

Králíčková³

et al. 2013

Acta Univ. Agric. Silvic. Mendelianae Brun.

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The aim of the study was to evaluate the eff ect of diff erent crossbreeds (CB) of Lacaune (LC) and East Friesian (EF) breeds (LC 50 EF 50, LC 75 EF 25 and LC 87.5 EF 12.5) on daily milk yield (DMY) and basic milk composition (contents of total solids (TS), fat (F), protein (P), casein (C) and lactose (L) for the whole lactation. The evaluation of the interactions between CB and parity (PA) and between CB and litter size (LS) on above mentioned indicators was also an integral part of this study. The study was carried out on the organic farm in Valašská Bystřice. The factor of CB had a signifi cant eff ect only on DMY and contents of P and C for the whole lactation whilst the higher proportion of LC breed in genotype, the higher DMY and the lower P and C contents. The CB x PA had a signifi cant eff ect on all indicators except for the lactose content when in all CB the DMY increased with the increase of the lactation number. On the other hand, in all CB the contents of TS, F, P and C were relatively very variable depending on the parity. Lastly, as for the interaction between CB and LS, the ewes with twins produced signifi cantly more milk compared to ewes with singles and these ewes had also signifi cantly higher contents of P and C and not signifi cantly higher contents of TS and F.

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“…An increased prevalence related to parity has been reported in ewes and goats [26,56,80,138]. Such descriptive data must be cautiously interpreted: the incidence is difficult to differentiate from prevalence (chronicity or relapse), and older animals may be the more resistant ones.…”

Section: Lactation Number (Parity)mentioning

confidence: 99%

Mastitis of dairy small ruminants

et al. 2003

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-Staphylococci are the main aetiological agents of small ruminants intramammary infections (IMI), the more frequent isolates being S. aureus in clinical cases and coagulase negative species in subclinical IMI. The clinical IMI, whose annual incidence is usually lower than 5%, mainly occur at the beginning of machine milking and during the first third of lactation. These features constitute small ruminant peculiarities compared to dairy cattle. Small ruminant mastitis is generally a chronic and contagious infection: the primary sources are mammary and cutaneous carriages, and spreading mainly occurs during milking. Somatic cell counts (SCC) represent a valuable tool for prevalence assessment and screening, but predictive values are better in ewes than in goats. Prevention is most often based on milking machine management, sanitation and annual control, and milking technique optimisation. Elimination mainly relies on culling animals exhibiting clinical, chronic and recurrent IMI, and on drying-off intramammary antibiotherapy; this treatment allows a good efficacy and may be used selectively by targeting infected udders only. Heritability values for lactation mean SCC scores are between 0.11 and 0.15. Effective inclusion of ewe's mastitis resistance in the breeding goal has recently been implemented in France following experimental and large scale estimations of genetic parameters for SCC scores.ewe / goat / mastitis / somatic cell count / epizootiology

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Effect of parity on milk yield, composition, somatic cell count, renneting parameters and bacteria counts of Comisana ewes

Cited by 92 publications

References 16 publications

Pen size and parity effects on maternal behaviour of Small-Tail Han sheep

Pen size and parity effects on maternal behaviour of Small-Tail Han sheep

Effect of different crossbreeds of Lacaune and East Friesian breeds on milk yield and basic milk parameters

Mastitis of dairy small ruminants

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