Effect of Pre-Pubertal Plan of Nutrition on Reproductive Performance, Hormone Concentrations and Milk Production in Kurdish Female Lambs
الموضوعات :ص. منتیان 1 , ح.ر. میرزایی الموتی 2 , ف. فتاح نیا 3 , ر. معصومی 4
1 - Department of Animal Science, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
2 - Department of Animal Science, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
3 - Department of Animal Science, Faculty of Agriculture, Ilam University, Ilam, Iran
4 - Department of Animal Science, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
الکلمات المفتاحية: Hormone, Milk, reproductive performance, Kurdish lambs, nutrition plan,
ملخص المقالة :
To determine the value of pre-pubertal plan of nutrition on reproductive performance, hormonal concentrations and milk production in ewe lambs, a total of 40 clinically health Kurdish female lambs (30±8.6 d and weighing 10.2±3.4 kg) were randomly allocated to one of two experimental diets in pre-weaning period: high quality diet (HQD) (HQD, 2.50 Mcal ME/kg dry matter (DM) and 148 g CP/kg DM) or low quality diet (LQD) (LQD, 2.02 Mcal ME/kg DM and 87 g CP/kg DM). At weaning, one half of lambs from each group was randomly separated and assigned to HQD or LQD. There were four treatment groups in post-weaning period: H-H (HQD pre-and post-weaning); H-L (HQD pre-weaning and LQD post-weaning); L-H (LQD pre-weaning and HQD post-weaning) and L-L (LQD pre and post-weaning, control group). Dry matter intake was measured weekly and body weight (BW) and average daily gain (ADG) were measured every 2 weeks from 30 to 210 d of age. Serum insulin, leptin and progesterone concentrations were determined by ELISA. In general, the HQD treatment increased dry matter intake (DMI), compared with the LQD treatment during pre-weaning period (P<0.01). Results showed that initial BW was similar between all experimental groups (P>0.05). During post-weaning, lambs of H-H treatment had higher DMI, metabolize energy (ME) and crude protein (CP) intake compared with other lambs treatments (P>0.05). Within the post-weaning, serum progesterone concentrations was greater for ewe lambs fed at H-H group than for other groups (P<0.05). Serum insulin concentration was affected by the diet quality at both periods (P<0.05). Leptin concentration was affected by treatment and ewe lambs of L-H group had higher leptin concentrations (P<0.05). Age at the time of puberty was affected by treatments (P<0.05). In addition, Ewe lambs in the H-H and L-H groups were younger and weighed more at puberty. Diet plan in the pre-pubertal period was affected milk yield at the first lactation (P<0.05). It was concluded that pre-pubertal plan play an important role in secretion of progesterone, insulin and leptin, which can leads to early sexual puberty. And also these strategic plans should be improve economic traits the start of lamb’s puberty in sheep husbandry.
Abouheif M., Al-Owaimer A., Kraidees M., Metwally H. and Shafey T. (2013). Effect of restricted feeding and realimentation on feed performance and carcass characteristic of growing lambs. Rev. Br. Zootec. 42, 95-101.
Aguerre M., Cajarville C., Kozloski J.V. and Repetto G.L. (2013). Intake and digestive responses by ruminants fed fresh temperate pasture supplemented with increased levels of sorghum grain: a comparison between cattle and sheep. Anim. Feed Sci. Technol. 186, 12-19.
AOAC. (1995). Official Methods of Analysis. 16th Ed. Association of Official Analytical Chemists, Arlington, VA, USA.
Besson M., Aubin J., Komen H., Poelman M., Quillet E., Vandeputte M., van Arendonk J.A.M. and de Boer I.J.M. (2016). Environmental impacts of genetic improvement of growth rate and feed conversion ratio in fish farming under rearing density and nitrogen output limitations. J. Clean. Prod. 116, 100-109.
Corner R.A., Mulvaney F.J., Morris S.T., West D.M., Morel P.C.H. and Kenyon P.R. (2013). A comparison of the reproductive performance of ewe lambs and mature ewes. Small. Rumin. Res. 114, 126-133.
Daniel J.A., Foradori C.D., Whitlock B.K. and Sartin J.L. (2013). Hypothalamic integration of nutrient status and reproduction in the sheep. Reprod. Domest. Anim. 48(1), 44-52.
Drouillard J.S., Ferrell C.L., Klopfenstein T.J. and Britton R.A. (1991). Compensatory growth following metabolizable protein or energy restrictions in beef steers. J. Anim. Sci. 69, 811-818.
Dyrmundsson O.R. (1981). Natural factors affecting puberty and reproductive performance in ewe lambs a review. Livest. Prod. Sci. 8, 55-65.
Ehtesham S.H. and Vakili A.R. (2015). The effect of spent mushroom substrate on blood metabolites and weight Gain in Kurdish male lambs. Entomol. Appl. Sci. Let. 2(1), 29-33.
Ettema J.F. and Santos J.E.P. (2004). Impact of age at calving on lactation, reproduction, health, and income in first-parity Holsteins on commercial farms. J. Dairy Sci. 87, 2730-2742.
Hernandez F., Elvira L., Gonzalez-Martin J.V., Gonzalez-Bulnes A. and Astiz S. (2011). Influence of age at first lambing on reproductive and productive performance of Lacaune dairy sheep under an intensive management system. J. Dairy Res. 78, 160-167.
Hoffman P.C. and Funk D.A. (1992). Applied dynamics of dairy replacement growth and management. J. Dairy Sci. 75, 2504-2516.
Kenyon P.R., Smith S.L., Morel P.C.H., Morris S.T. and West D.M. (2009). The effect of the maturity and prior breeding activity of rams and body condition score of ewe hoggets on the reproductive performance of ewe hoggets. New Zealand Vet. J. 57, 290-294.
Kenyon P.R., Morris S.T. and West D.M. (2010). Proportion of rams and the condition of ewe lambs at joining influences their breeding performance. Anim. Prod. Sci. 50, 454-459.
Kenyon P.R., van der Linden D.S., West D.M. and Morris S.T. (2011). The effect of breeding hoggets on lifetime performance. New Zealand J. Agric. Res. 54, 321-330.
Kenyon P.R., Thompson A.N. and Morris S.T. (2014). Breeding ewe lambs successfully to improve lifetime performance. Small Rumin. Res. 118, 2-15.
Mulvaney F.J., Morris S.T., Kenyon P.R., West D.M. and Morel P.C.H. (2010). Effect of live weight at the start of the breeding period and live weight gain during the breeding period and pregnancy on reproductive performance of hoggets and the live weight of their lambs. New Zealand J. Agric. Res. 53, 355-364.
NRC. (2001). Nutrient Requirements of Dairy Cattle. 7thEd.NationalAcademy Press, Washington, DC, USA.
NRC. (2007). Nutrient Requirements of Small Ruminants: Sheep and Goats. NationalAcademy Press, Washington, DC, USA.
Olfati A., Moghaddam G.H., Moradi Kor N. and Bakhtiari M. (2014). The relationship between progesterone and biochemical constituents of amniotic fluid with placenta traits in Iranian crossbred ewes (Arkhar-Merino×Ghezel). Asian Pac. J. Trop. Med. 7(1), 162-166.
Rosa H.J.D. and Bryant M.J. (2003). Seasonality of reproduction in sheep. Small Rumin. Res. 48, 155-171.
Rosales Nieto C.A., Ferguson M.B., Macleay C.A., Briegel J.R., Wood D.A., Martin G.B. and Thompson A.N. (2013). Ewe lambs with higher breeding values for growth achieve higher reproductive performance when mated at age 8 months. Theriogenology. 80, 427-435.
SAS Institute. (2003). SAS®/STAT Software, Release 9.1. SAS Institute, Inc., Cary, NC. USA.
Smith J.L. and Sheffield L.G. (2002). Production and regulation of leptin in bovine mammary epithelial cells. Domest. Anim. Endocrinol. 2, 145-155.
Treacher T.T. and Caja G. (2002). Nutrition during lactation. Pp. 65-71 in Sheep Nutrition. M.H. Freer and H. Dove, Eds. CSIRO Publishing, Australia.
Umberger S.H. (1980). The effect of accelerated growth and fattening from early weaning to parturition on ewe reproduction and lactation. Ph D. Thesis. North Carolina State Univ., Raleigh, North Carolina.
Van der linden D.S., Lopez-Villalobos N., Kenyon P.R., Thorstensen E., Jenkinson C.M.C., Peterson S.W. and Blair H.T. (2010). Comparison of four techniques to estimate milk production in singleton-rearing non-dairy ewes. Small Rumin. Res. 90, 18-26.
Van Soest P.J., Robertson J.B. and Lew B.A. (1991). Methods for dietary fiber, neutral detergent fiber and nonstarch polysaccha-rides in relation to animal nutrition. J. Dairy Sci. 74, 3583-3597.
Wallace J., Bourke D., Da Silva P. and Aitken R. (2001). Nutrient partitioning during adolescent pregnancy. Reproduction. 122, 347-357.
Yang J., Hou X., Gao A. and Wang H. (2014). Effect of dietary energy and protein restriction followed by realimentation on pituitary mRNA expression of growth hormone and related genes in lambs. Small Rumin. Res. 119, 39-44.
Young J.M., Thompson A.N. and Kennedy A.J. (2010). Bio economic modeling to identify the relative importance of a range of critical control points for prime lamb production systems in south-west Victoria. Anim. Prod. Sci. 50, 748-756.
