Effect of feeding systems on live-weight, reproductive performance, milk yield and composition, and the growth of lambs in native Spanish Ojalada sheep

Miguel-Romera, J. A.; Calvo-Ruiz, J. L.; Ciria-Ciria, J.; Asenjo-Martin, B.

doi:10.5424/sjar/20110903-465-10

Cited by 5 publications

(2 citation statements)

References 26 publications

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“…The quantification of milk production in sheep is important because milk is the main source of nutrients for the growth, development and health of lambs. If milk production is insufficient, the growth of lambs could be hampered [6][7][8]. For this reason, it is necessary to know the milk production in order to propose, if necessary, economically viable and profitable intervention strategies to increase milk production.…”

Section: Introductionmentioning

confidence: 99%

Udder Measurements and Their Relationship with Milk Yield in Pelibuey Ewes

Arcos-Álvarez

Canúl-Solís

García‐Herrera

et al. 2020

Animals

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The study aimed to evaluate the relationship between udder measurements and milk yield (MY) in dairy Pelibuey ewes. Udder measurements were taken twice a week for eight weeks before (initial) and after (final) milking, including udder depth (UD), udder circumference (UC), udder width (UW), teat length (TL) and teat diameter (TD) in 38 multiparous ewes. Additionally, udder volume (UV) and the difference (VDF) between initial UV (UVi) and final (UVf) was calculated as VDF = UVi − UVf. The MY varied from 0.10 kg/d to 1.04 kg/d, with a mean of 0.39 kg/d, ± 0.18 kg/d. Initial UC (UCi) ranged from 25.80 cm to 53.30 cm, and VDF varied from 1 cm3 to 2418 cm3. The TL and TD were not correlated with MY (p > 0.05), while UCi, UVi and VDF were positively correlated with MY (p < 0.0001; r = from 0.66 to 0.74). For the prediction of MY, the obtained equations had an r2 ranging from 0.54 to 0.63. The UCi, UDf, UWi and UWf were included in these models (p < 0.05). It is concluded that there was an acceptable correlation (r = 0.60) between the measurements of the udder, the volume of the udder and the daily milk yield in Pelibuey sheep. When direct measurements of milk production cannot be performed in practice, the measurement of udders and their volume could be a viable alternative to estimate milk yield production as an indirect method.

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Section: Introductionmentioning

confidence: 99%

Udder Measurements and Their Relationship with Milk Yield in Pelibuey Ewes

Arcos-Álvarez

Canúl-Solís

García‐Herrera

et al. 2020

Animals

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“…Earlier studies reported no differences in performance (Miguel-Romera et al 2011) or milk composition between feeding systems when the proportion of concentrate in the diet was similar (Tufarelli et al 2009). Gorgulu et al (2003) compared Damascus goats receiving TMR ad libitum with those receiving 1 kg concentrate and ad libitum alfalfa hay, and reported similar amount of milk such as in the present study.…”

Section: Results and Discussion Effect Of Feeding Systemsmentioning

confidence: 99%

Farklı Yemleme Sistemlerinin Alman Alaca ve Saanen Keçilerinde Performans ve Süt Kompozisyonu Üzerine Etkisi

Serbester

Mohammad

Koluman

et al. 2018

Kahramanmaraş Sütçü İmam Üniversitesi Doğa Bilimleri Dergisi

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The objective of this study was to compare the effects of two feeding systems (total mixed ration; TMR vs. roughage and concentrate offered separately; SF) on performance and milk composition of German Fawn (n= 16) and Saanen (n= 16) dairy goats. Animals were randomly allocated into 2 sub-groups and fed TMR or SF system. Roughage:concentrate ratio were arranged as 60:40 in TMR groups. Wheat straw (25%) and chopped alfalfa hay (75%) were used as roughage. Roughage was offered at ad libutum while concentrate was given in two equal meals (total 800 g/goat per day) in SF groups. The study was lasted 50 days. Live weights were recorded before morning feeding. Milk yields were recorded weekly. Individual milk samples were collected to determine total solids, fat, protein, casein, lactose, and urea-N. Feeding systems did not affect (P>0.05) milk yield, body weight, total solid, fat, protein, and casein concentrations. Separate access to roughage and concentrate decreased dry matter intake (P<0.01) and tended to decrease urea-N concentration (P= 0.053). Milk yield of German Fawn does was lower than Saanen does (P< 0.01; 1205.4 g/d vs. 1476.8 g/d). When milk composition of two genotypes were compared, protein was higher (P<0.01) in German Fawn does than Saanen does. In conclusion, there was no advantage of mixed diet over separate feeding for dairy goats having moderate milk yield (1200-1500 g/d).

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Ewe and lamb pre-weaning performance of Pelibuey and Katahdin hair sheep breeds under humid tropical conditions

Chay-Canul

Aguilar-Urquizo

Parra‐Bracamonte

et al. 2019

Italian Journal of Animal Science

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Pre-weaning is an important stage in sheep production systems focussed on meat production. In this stage, maternal ability has a key role in lamb development and productivity. The objective of this study was to evaluate the effect of breed and litter size at birth on the ewe and lamb pre-weaning performance under tropical conditions. The lambs and their dams were managed in a feedlot system during 56 days in individual pens. Milk production was estimated weekly by the weight-suck-weight method. Daily milk production (DMY), total milk production (TMY), body weight change during the lactation (BWC), litter weaning weight (LWW) and ewe weaning efficiency (EE) were estimated as ewe pre-weaning performance; and, birth weight, weaning weight at 56 days and average daily gain were estimated as lamb pre-weaning performance. Katahdin ewes produced more TMY than Pelibuey ewes (p < .001) but ewes from both breeds had similar overall LWW and EE. Pelibuey ewes had a more negative BWC than Kathadin ewes (p < .05). Katahdin lambs had greater birth weights (p < .05), but similar preweaning growth and live weight at weaning compared with Pelibuey lambs. Litter size effect was significant for all the traits except for BWC in both breeds. Compared to Katahdin twin-born lambs, Pelibuey twin-born lambs were lighter at birth but of similar weight at weaning. Litter size is an important factor conditioning pre-weaning performance of ewes and lambs of Pelibuey and Katahdin breeds under humid tropical conditions. HIGHLIGHTS Some indicators of ewe and lamb pre-weaning performance of Pelibuey and Katahdin hair sheep under tropical conditions were evaluated. The Katahdin ewes produced more milk than Pelibuey ewes, yet ewes from both breeds had similar litter weaning weight. Litter size is an important factor determining pre-weaning performance in Pelibuey and Katahdin hair sheep breeds under humid tropical conditions. ARTICLE HISTORY

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Effect of feeding systems on live-weight, reproductive performance, milk yield and composition, and the growth of lambs in native Spanish Ojalada sheep

Cited by 5 publications

References 26 publications

Udder Measurements and Their Relationship with Milk Yield in Pelibuey Ewes

Udder Measurements and Their Relationship with Milk Yield in Pelibuey Ewes

Farklı Yemleme Sistemlerinin Alman Alaca ve Saanen Keçilerinde Performans ve Süt Kompozisyonu Üzerine Etkisi

Ewe and lamb pre-weaning performance of Pelibuey and Katahdin hair sheep breeds under humid tropical conditions

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