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| 3. |  | BORGES, M.A.; CURCIO, B.R.; GASTAL, G.D.A.; GHENO, L.; JUNIOR, A.S.V.; CORCINI, C.D.; NOGUEIRA, C.E.W.; AGUIAR, F.L.N.; GASTAL, E.L. Ethanol, Carnoy, and paraformaldehyde as fixative solutions for histological evaluation of preantral follicles in equine ovarian tissue. Reproductive Biology, December 2023, Volume 23, Issue 4, Article 100814. https://doi.org/10.1016/j.repbio.2023.100814 Article history: Received 28 February 2023; Received in revised form 24 September 2023; Accepted 27 September 2023; Available online 25 October 2023. -- Correspondence author: Gastal, E.L.; Animal Science, School of Agricultural Sciences,...| Biblioteca(s): INIA Las Brujas. |
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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Treinta y Tres. |
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Fecha actual : |
17/09/2014 |
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Actualizado : |
24/09/2018 |
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Tipo de producción científica : |
Artículos Indexados |
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Autor : |
PIAGGIO, L; DESCHENAUX, H.; BALDI, F.; FIERRO, S.; QUINTANS, G.; BANCHERO, G. |
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Afiliación : |
GRACIELA QUINTANS ILARIA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Plane of nutrition of Corriedale ewe lambs from foetal life to the onset of breeding affects weight at service and reproductive outcome. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Animal Production Science, v. 55, n. 8, p. 1011-1017, 2015. |
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ISSN : |
1836-0939 |
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DOI : |
10.1071/AN13260 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 21 June 2013, accepted 27 May 2014, published online 15 September 2014. |
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Contenido : |
Abstract. The objective of this study was to identify periods in the life (foetal and postnatal) of Corriedale ewe lambs where different nutrition levels can affect bodyweight at breeding and pregnancy rate in their first year of life. The effect of three different phases of nutrition on the growth and pregnancy rate (n = 133) of Corriedale ewe lambs of 7 months of age were evaluated. Phase 1 included the last phase of gestation of their mothers (30 last days of gestation, Day ?30; partum = Day 0) until marking (Day 24). Phase 2 was between marking and weaning (Day 114) and phase 3 between weaning to the onset of breeding (Day 207). For phase 1, 350 adult ewes had access to improved pastures (phase 1, H) or native pastures (phase 1, L). After lambing, all ewes and their lambs were offered native pastures. After marking only ewes bearing females lambs were kept. In phase 2, 67 lambs born to H and 66 lambs born to L ewes were sorted in two new treatments: access to native pastures supplemented with ~1% of their bodyweight with soybean meal (phase 2, H) or access to native pastures alone (phase 2, L). In phase 3, each of the lambs of the four treatments applied during phase 2 were sorted in two new treatments:
access to improved pastures (phase 3, H) or native pastures supplemented with 0.7% of liveweight with soybean meal (phase 3, L). Breeding period lasted 41 days and pregnancy diagnosis was performed 86 days after the onset of breeding. The pregnancy rate varied from 0% to 47%. Phase 3 of nutrition was the only phase that affected pregnancy rate (28% vs.10% for female lambs offered H and L plane of nutrition respectively; P = 0.005). A discriminative analysis demonstrated that the liveweight at breeding was the only variable that affected the success of pregnancy in ewe lambs (P = 0.0025). Moreover, the ewe lambs that were heavier at the onset of breeding (more than 35 kg or in average 38 kg) were the most successful to get pregnant (35% of pregnancy for lambs over 35 kg and 13% for lambs under 35 kg, P = 0.0044). In conclusion, under the conditions of this experiment, the most important parameters to explain successful pregnancy of ewe lambs were the growth rate after weaning, and the liveweight at the onset of breeding. MenosAbstract. The objective of this study was to identify periods in the life (foetal and postnatal) of Corriedale ewe lambs where different nutrition levels can affect bodyweight at breeding and pregnancy rate in their first year of life. The effect of three different phases of nutrition on the growth and pregnancy rate (n = 133) of Corriedale ewe lambs of 7 months of age were evaluated. Phase 1 included the last phase of gestation of their mothers (30 last days of gestation, Day ?30; partum = Day 0) until marking (Day 24). Phase 2 was between marking and weaning (Day 114) and phase 3 between weaning to the onset of breeding (Day 207). For phase 1, 350 adult ewes had access to improved pastures (phase 1, H) or native pastures (phase 1, L). After lambing, all ewes and their lambs were offered native pastures. After marking only ewes bearing females lambs were kept. In phase 2, 67 lambs born to H and 66 lambs born to L ewes were sorted in two new treatments: access to native pastures supplemented with ~1% of their bodyweight with soybean meal (phase 2, H) or access to native pastures alone (phase 2, L). In phase 3, each of the lambs of the four treatments applied during phase 2 were sorted in two new treatments:
access to improved pastures (phase 3, H) or native pastures supplemented with 0.7% of liveweight with soybean meal (phase 3, L). Breeding period lasted 41 days and pregnancy diagnosis was performed 86 days after the onset of breeding. The pregnancy rate varied from 0% to ... Presentar Todo |
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Palabras claves : |
ALIMENTACIÓN POSTDESTETE; ALIMENTACIÓN PREDESTETE; CONDICIÓN CORPORAL AL SERVICIO; CONDICIÓN CORPORAL EN LA ENCARNERADA; CONDICIÓN CORPORAL POSTDESTETE; CORDERAS; CORDEROS; CORRIEDALE; FERTILIDAD; FERTILIDAD DE LAS OVEJAS; FERTILITY; FOETAL; MANEJO NUTRICIONAL; NUTRICIÓN POSTNATAL; NUTRICIÓN PRENATAL; OVINOS; PERIODO POSTDESTETE; PERIODO PREDESTETE; PRE- AND POST-WEANING NUTRITION; REPRODUCCIÓN ANIMAL; SHEEP; SUPLEMENTACIÓN CON HARINA DE SOJA. |
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Thesagro : |
PASTURA NATURAL. |
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Asunto categoría : |
L53 Fisiología Animal - Reproducción |
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Marc : |
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022 $a1836-0939
024 7 $a10.1071/AN13260$2DOI
100 1 $aPIAGGIO, L
245 $aPlane of nutrition of Corriedale ewe lambs from foetal life to the onset of breeding affects weight at service and reproductive outcome.$h[electronic resource]
260 $c2015
500 $aArticle history: Received 21 June 2013, accepted 27 May 2014, published online 15 September 2014.
520 $aAbstract. The objective of this study was to identify periods in the life (foetal and postnatal) of Corriedale ewe lambs where different nutrition levels can affect bodyweight at breeding and pregnancy rate in their first year of life. The effect of three different phases of nutrition on the growth and pregnancy rate (n = 133) of Corriedale ewe lambs of 7 months of age were evaluated. Phase 1 included the last phase of gestation of their mothers (30 last days of gestation, Day ?30; partum = Day 0) until marking (Day 24). Phase 2 was between marking and weaning (Day 114) and phase 3 between weaning to the onset of breeding (Day 207). For phase 1, 350 adult ewes had access to improved pastures (phase 1, H) or native pastures (phase 1, L). After lambing, all ewes and their lambs were offered native pastures. After marking only ewes bearing females lambs were kept. In phase 2, 67 lambs born to H and 66 lambs born to L ewes were sorted in two new treatments: access to native pastures supplemented with ~1% of their bodyweight with soybean meal (phase 2, H) or access to native pastures alone (phase 2, L). In phase 3, each of the lambs of the four treatments applied during phase 2 were sorted in two new treatments: access to improved pastures (phase 3, H) or native pastures supplemented with 0.7% of liveweight with soybean meal (phase 3, L). Breeding period lasted 41 days and pregnancy diagnosis was performed 86 days after the onset of breeding. The pregnancy rate varied from 0% to 47%. Phase 3 of nutrition was the only phase that affected pregnancy rate (28% vs.10% for female lambs offered H and L plane of nutrition respectively; P = 0.005). A discriminative analysis demonstrated that the liveweight at breeding was the only variable that affected the success of pregnancy in ewe lambs (P = 0.0025). Moreover, the ewe lambs that were heavier at the onset of breeding (more than 35 kg or in average 38 kg) were the most successful to get pregnant (35% of pregnancy for lambs over 35 kg and 13% for lambs under 35 kg, P = 0.0044). In conclusion, under the conditions of this experiment, the most important parameters to explain successful pregnancy of ewe lambs were the growth rate after weaning, and the liveweight at the onset of breeding.
650 $aPASTURA NATURAL
653 $aALIMENTACIÓN POSTDESTETE
653 $aALIMENTACIÓN PREDESTETE
653 $aCONDICIÓN CORPORAL AL SERVICIO
653 $aCONDICIÓN CORPORAL EN LA ENCARNERADA
653 $aCONDICIÓN CORPORAL POSTDESTETE
653 $aCORDERAS
653 $aCORDEROS
653 $aCORRIEDALE
653 $aFERTILIDAD
653 $aFERTILIDAD DE LAS OVEJAS
653 $aFERTILITY
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653 $aNUTRICIÓN POSTNATAL
653 $aNUTRICIÓN PRENATAL
653 $aOVINOS
653 $aPERIODO POSTDESTETE
653 $aPERIODO PREDESTETE
653 $aPRE- AND POST-WEANING NUTRITION
653 $aREPRODUCCIÓN ANIMAL
653 $aSHEEP
653 $aSUPLEMENTACIÓN CON HARINA DE SOJA
700 1 $aDESCHENAUX, H.
700 1 $aBALDI, F.
700 1 $aFIERRO, S.
700 1 $aQUINTANS, G.
700 1 $aBANCHERO, G.
773 $tAnimal Production Science$gv. 55, n. 8, p. 1011-1017, 2015.
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