Energy requirements for growth of pubertal female Saanen goats

Figueiredo, F O M; Berchielli, T T; Resende, K T; Gomes, H F B; Almeida, A K; Sakomura, N K; Teixeira, I A M A

doi:10.1111/jpn.12367

Author(s)

Figueiredo, F O M

Berchielli, T T

Resende, K T

Gomes, H F B

Almeida, A K

Sakomura, N K

Teixeira, I A M A

Publication Date

2016-04

Abstract

Previous research on energy requirements of female Saanen goats, using the factorial approach, has not considered the specific requirements for maintenance and growth during the pubertal phase. Thus, the purpose of this study was to estimate energy requirements for maintenance (Trial 1) and growth (Trial 2) of non‐pregnant and non‐lactating female Saanen goats at the pubertal phase from 30 to 45 kg. In Trial 1, the net energy requirements for maintenance (NEm) were estimated using 18 female Saanen goats randomly assigned to three levels of intake: ad libitum, and 70% and 40% of ad libitum intake. These animals were pair‐fed in six slaughter groups, each consisting of one animal for each level of intake. In Trial 2, the net energy requirements for growth (NEg) were estimated using 18 female Saanen goats, which were fed ad libitum and slaughtered at targeted BW of 30, 38 and 45 kg. The NEm was 52 kcal/kg0.75 of BW. The NEg increased from 3.5 to 4.7 Mcal/kg of BW gain as BW increased from 30 to 45 kg. Our results suggest that the guidelines of the major feeding systems for the entire growth phase may not be adequate for females at pubertal phase.

Citation

Journal of Animal Physiology and Animal Nutrition, 100(2), p. 294-300

ISSN

1439-0396

0931-2439

Pubmed ID

26249003

Link

https://hdl.handle.net/1959.11/29283

Language

en

Publisher

Wiley-Blackwell Verlag GmbH

Title

Energy requirements for growth of pubertal female Saanen goats

Type of document

Journal Article

Entity Type

Publication

Author(s)	Figueiredo, F O M Berchielli, T T Resende, K T Gomes, H F B Almeida, A K Sakomura, N K Teixeira, I A M A
Publication Date	2016-04
Abstract	Previous research on energy requirements of female Saanen goats, using the factorial approach, has not considered the specific requirements for maintenance and growth during the pubertal phase. Thus, the purpose of this study was to estimate energy requirements for maintenance (Trial 1) and growth (Trial 2) of non‐pregnant and non‐lactating female Saanen goats at the pubertal phase from 30 to 45 kg. In Trial 1, the net energy requirements for maintenance (NE<sub>m</sub>) were estimated using 18 female Saanen goats randomly assigned to three levels of intake: <i>ad libitum</i>, and 70% and 40% of <i>ad libitum</i> intake. These animals were pair‐fed in six slaughter groups, each consisting of one animal for each level of intake. In Trial 2, the net energy requirements for growth (NE<sub>g</sub>) were estimated using 18 female Saanen goats, which were fed <i>ad libitum</i> and slaughtered at targeted BW of 30, 38 and 45 kg. The NE<sub>m</sub> was 52 kcal/kg<sup>0.75</sup> of BW. The NE<sub>g</sub> increased from 3.5 to 4.7 Mcal/kg of BW gain as BW increased from 30 to 45 kg. Our results suggest that the guidelines of the major feeding systems for the entire growth phase may not be adequate for females at pubertal phase.
Citation	Journal of Animal Physiology and Animal Nutrition, 100(2), p. 294-300
ISSN	1439-0396 0931-2439
Pubmed ID	26249003
Link	https://hdl.handle.net/1959.11/29283
Language	en
Publisher	Wiley-Blackwell Verlag GmbH
Title	Energy requirements for growth of pubertal female Saanen goats
Type of document	Journal Article
Entity Type	Publication

Energy requirements for growth of pubertal female Saanen goats

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