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Effect of energy and protein levels on health, growth, puberty and semen quality of Holstein bull-calves undergoing progeny

Technical Report:

Abstract

Three energy and protein levels in the ration fed potential artificial insemination sires during the first year of age were evaluated with respect to health, body and testicular growth rate, puberty and sperm quality of the animals. Treatment were, Group I, NRC requirements for energy and protein for growing dairy bulls with daily weight gains from 0.4 to 0.9 kg/day; and Groups II and III which were fed 15 and 30% over the recommended energy and protein requirements, respectively. Blood metabolites were found within the reference range. Plasma Cu and Zn were lower in Groups I and III as compared to Group II. Histological studies and gross weights of the thyroid glands were compatible with hypofunction of the glands in animals from Groups I and III. In Group III, 60% of animals showed abundant fat deposition in testicles. Normal fibroelastic consistency of testicles was found in 30, 80, and 20% of animals in Groups I, II, and III, respectively, at 365 days of age. The area under the curve was 641.5, 982.9 and 462.2 for Groups I, II and III, respectively. Volume, motility and percentage of living spermatozoa increased with age (P<0.05) while total morphological alterations decreased significantly. Animals in  More>>
Authors:
Alvarez, J L; Zaldivar, V; Tamayo-Aviles, A; Faure, R; [1]  Boado, A; Lannes, M [2] 
  1. Centro Nacional de Sanidad Agropecuaria, Havana (Cuba). Dept. de Reproduccion
  2. Instituto Superior de Ciencias Agropecuarias de la Habana, Havana (Cuba). Dept. de Nutricion Animal
Publication Date:
May 01, 1996
Product Type:
Technical Report
Report Number:
IAEA-TECDOC-877; CONF-9309522-
Reference Number:
SCA: 553005; PA: AIX-27:070489; EDB-96:159805; SN: 96001683698
Resource Relation:
Conference: Final research coordination meeting of a co-ordinated research programme on development of feed supplementation strategies for improving ruminant productivity on small-holder farms in Latin America th, Piracicaba (Brazil), 27 Sep - 1 Oct 1993; Other Information: PBD: May 1996; Related Information: Is Part Of Development of feed supplementation strategies for improving ruminant productivity on small-holder farms in Latin America through the use of immunoassay techniques. Proceedings of the final research co-ordination meeting of a co-ordinated research programme; PB: 183 p.
Subject:
55 BIOLOGY AND MEDICINE, BASIC STUDIES; REPRODUCTION; MEASURING METHODS; RADIOIMMUNOASSAY; CALVES; CATTLE; COORDINATED RESEARCH PROGRAMS; ENERGY EFFICIENCY; EXPERIMENTAL DATA; FARMS; GROWTH; PRODUCTIVITY; PROGENY; PROTEINS; SPERMATOGENESIS
OSTI ID:
385107
Research Organizations:
Joint FAO/IAEA Div. of Nuclear Techniques in Food and Agriculture, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1011-4289; Other: ON: DE97602779; TRN: XA9642513070489
Availability:
INIS; OSTI as DE97602779
Submitting Site:
INIS
Size:
pp. 163-172
Announcement Date:

Technical Report:

Citation Formats

Alvarez, J L, Zaldivar, V, Tamayo-Aviles, A, Faure, R, Boado, A, and Lannes, M. Effect of energy and protein levels on health, growth, puberty and semen quality of Holstein bull-calves undergoing progeny. IAEA: N. p., 1996. Web.
Alvarez, J L, Zaldivar, V, Tamayo-Aviles, A, Faure, R, Boado, A, & Lannes, M. Effect of energy and protein levels on health, growth, puberty and semen quality of Holstein bull-calves undergoing progeny. IAEA.
Alvarez, J L, Zaldivar, V, Tamayo-Aviles, A, Faure, R, Boado, A, and Lannes, M. 1996. "Effect of energy and protein levels on health, growth, puberty and semen quality of Holstein bull-calves undergoing progeny." IAEA.
@misc{etde_385107,
title = {Effect of energy and protein levels on health, growth, puberty and semen quality of Holstein bull-calves undergoing progeny}
author = {Alvarez, J L, Zaldivar, V, Tamayo-Aviles, A, Faure, R, Boado, A, and Lannes, M}
abstractNote = {Three energy and protein levels in the ration fed potential artificial insemination sires during the first year of age were evaluated with respect to health, body and testicular growth rate, puberty and sperm quality of the animals. Treatment were, Group I, NRC requirements for energy and protein for growing dairy bulls with daily weight gains from 0.4 to 0.9 kg/day; and Groups II and III which were fed 15 and 30% over the recommended energy and protein requirements, respectively. Blood metabolites were found within the reference range. Plasma Cu and Zn were lower in Groups I and III as compared to Group II. Histological studies and gross weights of the thyroid glands were compatible with hypofunction of the glands in animals from Groups I and III. In Group III, 60% of animals showed abundant fat deposition in testicles. Normal fibroelastic consistency of testicles was found in 30, 80, and 20% of animals in Groups I, II, and III, respectively, at 365 days of age. The area under the curve was 641.5, 982.9 and 462.2 for Groups I, II and III, respectively. Volume, motility and percentage of living spermatozoa increased with age (P<0.05) while total morphological alterations decreased significantly. Animals in Group II had the best sperm production. Histological evaluation revealed 80 and 100% of testicular degeneration in animals from Groups I and III, respectively. The application of diet in Group II is recommended to be used in specialized AI bull rearing units in Cuba according to the quantities and characteristics evaluated in this design. 61 refs, 3 figs, 5 tabs.}
place = {IAEA}
year = {1996}
month = {May}
}