NZQA Expiring unit standard
23791 version 2
Page 1 of 3
Title
Describe management practices to ensure milk quality, and manage
the implications of contaminated milk
Level
3
Credits
8
Purpose
People credited with this unit standard are able to describe:
management practices to ensure on-farm milk quality, and the
risk of supplementary feeds to milk quality; the effect of
inhibitory substances on milk quality; methods to avoid spray
residue contamination of milk; and the immediate and
consequential implications, and short and long term financial
implications of contaminated milk for the farmer.
Classification
Agriculture > On-farm Milk Quality
Available grade
Achieved
Explanatory notes
1
Legislation includes but is not limited to – Health and Safety in Employment Act
1992, Animal Products Act 1999, Animal Welfare Act 1999, Health Act 1956, Food
Act 1981, Agricultural Compounds and Veterinary Medicines Act 1997, Resource
Management Act 1991, Hazardous Substances and New Organisms Act 1996.
2
References
NZCP-1, New Zealand Dairy Industry Farm Dairy Code of Practice, New Zealand
Food Safety Authority, ISBN 0-908946-00-7, referred to as the code of practice.
DPC 2: Animal Products (Dairy) Approved Criteria for Farm Dairies, referred to as
DPC 2. Available from the Ministry of Primary Industries website,
http://www.mpi.govt.nz.
This unit standard is
expiring
Outcomes and evidence requirements
Outcome 1
Describe management practices to ensure on-farm milk quality, and the risk of
supplementary feeds to milk quality.
Evidence requirements
1.1
The presence of undesirable features in milk is described in terms of the
management practices needed to rectify the problems.
Range
bacteria – heat resistant, coliform;
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
23791 version 2
Page 2 of 3
sediment, colostrum, water in milk, inhibitory substances, somatic
cells, DDE (dichlorodiphenyl dichloroethene), foreign matter,
chemicals;
residues – rat bait, sprays, veterinary medicines.
1.2
The feeding of supplementary feeds is described in terms of the risk to milk
quality.
Range
traceability, on-farm storage, suitability.
Outcome 2
Describe the effect of inhibitory substances on milk quality.
Range
antibiotics, penicillin.
Evidence requirements
2.1
Inhibitory substances are described in terms of the effects of their presence in
milk.
2.2
Inhibitory substance residues are described in terms of the seasonal risks,
possible effects on milk quality, and on-farm management procedures for
reducing their presence in milk.
Range
period.
late lactation and drying off, dry period, calving and colostrum
Outcome 3
Describe methods to avoid spray residue contamination of milk.
This unit standard is
Methods to avoid spray residue contamination of milk are described in terms of
the on-farm managementexpiring
procedures.
Evidence requirements
3.1
Range
spray labelling, spray storage, spray mixing, spray usage,
withholding periods.
Outcome 4
Describe the immediate and consequential implications, and short and long term financial
implications of contaminated milk for the farmer.
Evidence requirements
4.1
Contaminated milk is described in terms of the immediate and consequential
implications.
Range
immediate – financial loss, dairy company penalty, environmental
effect when dumping;
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
23791 version 2
Page 3 of 3
consequential – product contamination.
4.2
Contaminated milk is described in terms of the insurance cover available to the
farmer at all stages
stages – farm loss, tanker loss, consequential loss of product.
Range
4.3
Options available to the farmer to manage contaminated milk are described in
terms of the implications, and in accordance with local council requirements.
Range
4.4
disposal plus at least one other option.
Contaminated milk is described in terms of the short and long term financial
implications for the farmer.
Replacement information
This unit standard has been replaced by unit standard
28939
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
24 August 2007
31 December 2020
Review
2
16 July 2015
31 December 2020
Consent and Moderation Requirements (CMR) reference
0052
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
This unit standard is
expiring
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016